Luoyang Xinqianglian Slewing Bearing Co., Ltd.  ( Hereinafter referred to as the LYXQL) founded in 2003, is located in the ancient capital of nine dynasties Luoyang in Henan province. LYXQL is a national key high-tech enterprises and become a GEM listing company successfully on July 13,2020 (stock code "300850").

LYXQL is a leader in the manufacturers of large size slewing bearings, based on Luoyang in China, developing and producing slewing bearings and precision bearings for the most varied of application areas. The slewing bearings are widely used as components in  cranes.

Cranes are lifting machinery used in highway and bridge engineering construction. According to its structure and characteristics, it can be generally divided into four categories: light and small lifting equipment, bridge cranes, gantry cranes and tower cranes.

The slewing bearing is an important "joint" of the crane, so its maintenance is very important. The working characteristics of cranes are intermittent movement, that is, the corresponding mechanisms of reclaiming, transporting, unloading and other actions in a working cycle work alternately. The development and use of cranes in the market are becoming more and more extensive.

Crane slewing ring bearing-structure type
1.Four contact ball slewing bearings
2.Cross roller slewing bearings
3.Double row ball slewing bearings
4.Triple row roller slewing bearings
5.Ball and roller combined slewing bearings;

Single row four point contact ball slewing bearings
This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.

Single row cross roller slewing bearings
This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.

Double row different ball diameter slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.

Triple row cylindrical roller slewing bearings
This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.

Roller/ball combination slewing bearings
This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.


Crane slewing ring ------Technical Data:
1.Inner ring and outer ring material: 42CrMo, 50Mn
2.Steel ball or roller material: Gcr15, Gcr15 SiMn, 304 Stainless steel, 440 Stainless steel
3. Precision: P0. P6. P5.
4. Outside diameter: 1000~17000mm
5. Cage/retainer: Nylon or Steel Cage
6: Seal: NBR, Oil resistant rubber,Viton,Skeleton oil seal

Crane slewing bearing------Surface treatment:
1: black surface treatment
2: Surface sandblasting and painting
3: Surface chrome plating
4: Surface spray zinc treatment
5: Surface phosphating treatment
6: Dacromet treatment

Crane slewing ring------Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,

Crane slewing ring bearing--- Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Can design and produce non-standard models according to the special requirements of customers.
6.Can provide BV, LR,DNV,CCS, NK,KR, GL,ABS certificate

Crane slewing ring bearing- Maintain
1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation .

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

3.Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.

Luoyang Xinqianglian Slewing Bearing Co., Ltd.  ( Hereinafter referred to as the LYXQL) founded in 2003, is located in the ancient capital of nine dynasties Luoyang in Henan province. LYXQL is a national key high-tech enterprises and become a GEM listing company successfully on July 13,2020 (stock code "300850").

LYXQL is a leader in the manufacturers of large size slewing bearings, based on Luoyang in China, developing and producing slewing bearings and precision bearings for the most varied of application areas. The slewing bearings are widely used as components in  crawler cranes.

Crawler crane is a kind of self-propelled crane for high-rise building construction. It is a boom rotating crane that uses the crawler to travel. The crawler has a large grounding area, good passability, strong adaptability, and can walk with load, which is suitable for hoisting operations on construction sites. It can perform various operations such as excavation, rammed earth, and piling. However, due to the slow walking speed, other vehicles are required for long-distance transfer of the site.

Through the slewing bearing mounted on the chassis, the full weight of the turntable can be transferred to the chassis, which is equipped with power units, transmission systems, hoists, operating mechanisms, counterweights and hangars. The power unit can make the turntable rotate 360° through the slewing mechanism. The slewing bearing is composed of the upper and lower rolling discs and the rolling elements (balls, rollers) in between, which can transfer the full weight of the turntable to the chassis and ensure the free rotation of the turntable.

Crawler crane slewing ring bearing-structure type
1.Four contact ball slewing bearings
2.Cross roller slewing bearings
3.Double row ball slewing bearings
4.Triple row roller slewing bearings
5.Ball and roller combined slewing bearings;

Crawler crane slewing ring ------Technical Data:
1.Inner ring and outer ring material: 42CrMo, 50Mn
2.Steel ball or roller material: Gcr15, Gcr15 SiMn, 304 Stainless steel, 440 Stainless steel
3. Precision: P0. P6. P5.
4. Outside diameter: 1000~17000mm
5. Cage/retainer: Nylon or Steel Cage
6: Seal: NBR, Oil resistant rubber,Viton,Skeleton oil seal

Crawler crane slewing bearing------Surface treatment:
1: black surface treatment
2: Surface sandblasting and painting
3: Surface chrome plating
4: Surface spray zinc treatment
5: Surface phosphating treatment
6: Dacromet treatment

Crawler crane slewing ring------Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,

Crawler crane slewing ring bearing--- Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Can design and produce non-standard models according to the special requirements of customers.
6.Can provide BV, LR,DNV,CCS, NK,KR, GL,ABS certificate

Crawler crane Slewing Ring- Seal
The sealing of knuckle boom crane slewing bearing is mainly to prevent the filled grease from leaking out, and also to prevent external dust, impurities and moisture from entering the inside of the bearing and affecting the normal operation of the bearing.

Since most of the slewing bearings work under heavy loads and low speeds, the sealing form of the bearings adopts two structures: rubber seal ring seal and labyrinth seal. The rubber sealing ring itself has a simple structure, small space occupation and reliable sealing performance. The disadvantage is that it is prone to early aging under high temperature conditions and loss of airtightness. Therefore, under high temperature conditions, the slewing bearing should adopt a labyrinth seal. In addition, the material of the sealing ring under high temperature is high temperature resistant fluoro rubber.

Crawler crane slewing ring bearing- Maintain
1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation .

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

3.Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.

Luoyang Xinqianglian Slewing Bearing Co., Ltd.  ( Hereinafter referred to as the LYXQL) founded in 2003, is located in the ancient capital of nine dynasties Luoyang in Henan province. LYXQL is a national key high-tech enterprises and become a GEM listing company successfully on July 13,2020 (stock code "300850").

LYXQL is a leader in the manufacturers of large size slewing bearings, based on Luoyang in China, developing and producing slewing bearings and precision bearings for the most varied of application areas. The slewing bearings are widely used as components in  crawler cranes.

Crawler crane is a kind of self-propelled crane for high-rise building construction. It is a boom rotating crane that uses the crawler to travel. The crawler has a large grounding area, good passability, strong adaptability, and can walk with load, which is suitable for hoisting operations on construction sites. It can perform various operations such as excavation, rammed earth, and piling. However, due to the slow walking speed, other vehicles are required for long-distance transfer of the site.

Through the slewing bearing mounted on the chassis, the full weight of the turntable can be transferred to the chassis, which is equipped with power units, transmission systems, hoists, operating mechanisms, counterweights and hangars. The power unit can make the turntable rotate 360° through the slewing mechanism. The slewing bearing is composed of the upper and lower rolling discs and the rolling elements (balls, rollers) in between, which can transfer the full weight of the turntable to the chassis and ensure the free rotation of the turntable.

Crawler crane slewing ring bearing-structure type
1.Four contact ball slewing bearings
2.Cross roller slewing bearings
3.Double row ball slewing bearings
4.Triple row roller slewing bearings
5.Ball and roller combined slewing bearings;

Crawler crane slewing ring ------Technical Data:
1.Inner ring and outer ring material: 42CrMo, 50Mn
2.Steel ball or roller material: Gcr15, Gcr15 SiMn, 304 Stainless steel, 440 Stainless steel
3. Precision: P0. P6. P5.
4. Outside diameter: 1000~17000mm
5. Cage/retainer: Nylon or Steel Cage
6: Seal: NBR, Oil resistant rubber,Viton,Skeleton oil seal

Crawler crane slewing bearing------Surface treatment:
1: black surface treatment
2: Surface sandblasting and painting
3: Surface chrome plating
4: Surface spray zinc treatment
5: Surface phosphating treatment
6: Dacromet treatment

Crawler crane slewing ring------Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,

Crawler crane slewing ring bearing--- Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Can design and produce non-standard models according to the special requirements of customers.
6.Can provide BV, LR,DNV,CCS, NK,KR, GL,ABS certificate

Crawler crane Slewing Ring- Seal
The sealing of knuckle boom crane slewing bearing is mainly to prevent the filled grease from leaking out, and also to prevent external dust, impurities and moisture from entering the inside of the bearing and affecting the normal operation of the bearing.

Since most of the slewing bearings work under heavy loads and low speeds, the sealing form of the bearings adopts two structures: rubber seal ring seal and labyrinth seal. The rubber sealing ring itself has a simple structure, small space occupation and reliable sealing performance. The disadvantage is that it is prone to early aging under high temperature conditions and loss of airtightness. Therefore, under high temperature conditions, the slewing bearing should adopt a labyrinth seal. In addition, the material of the sealing ring under high temperature is high temperature resistant fluoro rubber.

Crawler crane slewing ring bearing- Maintain
1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation .

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

3.Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.

Luoyang Xinqianglian Slewing Bearing Co., Ltd.  ( Hereinafter referred to as the LYXQL) founded in 2003, is located in the ancient capital of nine dynasties Luoyang in Henan province. LYXQL is a national key high-tech enterprises and become a GEM listing company successfully on July 13,2020 (stock code "300850").

LYXQL is a leader in the manufacturers of large size slewing bearings, based on Luoyang in China, developing and producing slewing bearings and precision bearings for the most varied of application areas. The slewing bearings are widely used as components in  deck cranes.

Deck crane, also known as "marine crane", commonly known as "deck crane". It refers to a kind of ship lifting equipment in which the boom, its hoisting, luffing, rotating mechanism and control room are centrally installed in a tower, and the tower can rotate 360° around its base. There are two types of power sources, electric and hydraulic. Compared with boom-type lifting equipment, it has the advantages of compact structure, flexible and convenient operation, simple preparation before operation and small deck area, but it is more expensive and more complicated to maintain.

The slewing bearing is an important part of the ship deck crane, and its work safety and reliability are very high. The point of the slewing bearing of the port marine crane is low speed and high load. According to the actual use, the customer's use speed for marine products is 6-7 rpm. Deck crane slewing bearings are usually composed of ferrules (inner ring, outer ring, upper ring/lower ring), rolling elements, spacer blocks, sealing belts and oil cups. With the continuous expansion of the application field of slewing bearing, its application ability in the field of ships has also been well displayed.

Deck crane slewing ring bearing-structure type
1.Four contact ball slewing bearings
2.Cross roller slewing bearings
3.Double row ball slewing bearings
4.Triple row roller slewing bearings
5.Ball and roller combined slewing bearings;

Deck crane slewing ring ------Technical Data:
1.Inner ring and outer ring material: 42CrMo, 50Mn
2.Steel ball or roller material: Gcr15, Gcr15 SiMn, 304 Stainless steel, 440 Stainless steel
3. Precision: P0. P6. P5.
4. Outside diameter: 1000~17000mm
5. Cage/retainer: Nylon or Steel Cage
6: Seal: NBR, Oil resistant rubber,Viton,Skeleton oil seal

Deck crane slewing bearing------Surface treatment:
1: black surface treatment
2: Surface sandblasting and painting
3: Surface chrome plating
4: Surface spray zinc treatment
5: Surface phosphating treatment
6: Dacromet treatment

Deck crane slewing ring------Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,

Deckcrane slewing ring bearing--- Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Can design and produce non-standard models according to the special requirements of customers.
6.Can provide BV, LR,DNV,CCS, NK,KR, GL,ABS certificate

Deck crane Slewing Ring- Seal
The sealing of deck crane slewing bearing is mainly to prevent the filled grease from leaking out, and also to prevent external dust, impurities and moisture from entering the inside of the bearing and affecting the normal operation of the bearing.

Since most of the slewing bearings work under heavy loads and low speeds, the sealing form of the bearings adopts two structures: rubber seal ring seal and labyrinth seal. The rubber sealing ring itself has a simple structure, small space occupation and reliable sealing performance. The disadvantage is that it is prone to early aging under high temperature conditions and loss of airtightness. Therefore, under high temperature conditions, the slewing bearing should adopt a labyrinth seal. In addition, the material of the sealing ring under high temperature is high temperature resistant fluoro rubber.

Deck crane slewing ring bearing- Maintain
1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation .

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

3.Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.

Luoyang Xinqianglian Slewing Bearing Co., Ltd.  ( Hereinafter referred to as the LYXQL) founded in 2003, is located in the ancient capital of nine dynasties Luoyang in Henan province. LYXQL is a national key high-tech enterprises and become a GEM listing company successfully on July 13,2020 (stock code "300850").

LYXQL is a leader in the manufacturers of large size slewing bearings, based on Luoyang in China, developing and producing slewing bearings and precision bearings for the most varied of application areas. The slewing bearings are widely used as components in knuckle boom crane.

Knuckle boom crane is a kind of hoisting machinery, which is a kind of machinery that performs cyclic and intermittent movement.The slewing mechanism on the knuckle-boom crane is used to rotate the boom, and is composed of driving drive and slewing bearing .

Knuckle boom crane has strict requirements on the bearing capacity of the slewing bearings. The slewing bearings not only has to bear the weight of the crane lifting objects, but also the tipping moment of the crane boom.

Knuckle boom crane slewing ring bearing-structure type
1.Four contact ball slewing bearings
2.Cross roller slewing bearings
3.Double row ball slewing bearings
4.Triple row roller slewing bearings
5.Ball and roller combined slewing bearings;

Single row four point contact ball slewing bearings
This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.

Single row cross roller slewing bearings
This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.

Double row different ball diameter slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.

Triple row cylindrical roller slewing bearings
This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.

Roller/ball combination slewing bearings
This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.


Knuckle boom crane slewing ring ------Technical Data:
1.Inner ring and outer ring material: 42CrMo, 50Mn
2.Steel ball or roller material: Gcr15, Gcr15 SiMn, 304 Stainless steel, 440 Stainless steel
3. Precision: P0. P6. P5.
4. Outside diameter: 1000~17000mm
5. Cage/retainer: Nylon or Steel Cage
6: Seal: NBR, Oil resistant rubber,Viton,Skeleton oil seal

Knuckle boom crane slewing bearing------Surface treatment:
1: black surface treatment
2: Surface sandblasting and painting
3: Surface chrome plating
4: Surface spray zinc treatment
5: Surface phosphating treatment
6: Dacromet treatment

Knuckle boom crane slewing ring------Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,

Our Knuckle boom crane slewing ring bearing--- Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Can design and produce non-standard models according to the special requirements of customers.
6.Can provide BV, LR,DNV,CCS, NK,KR, GL,ABS certificate

Knuckle boom crane slewing ring bearing- Maintain
1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation .

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

3.Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.

Luoyang Xinqianglian Slewing Bearing Co., Ltd.  ( Hereinafter referred to as the LYXQL) founded in 2003, is located in the ancient capital of nine dynasties Luoyang in Henan province. LYXQL is a national key high-tech enterprises and become a GEM listing company successfully on July 13,2020 (stock code "300850").

LYXQL is a leader in the manufacturers of large size slewing bearings, based on Luoyang in China, developing and producing slewing bearings and precision bearings for the most varied of application areas. The slewing bearings are widely used as components in Truck cranes.

The slewing bearing of truck crane is composed of inner ring and outer ring. The materials are generally 50mn, 42crmo, S48C, stainless steel, etc. According to the style, it can be divided into inner teeth, outer teeth and no teeth. The materials are generally 50mn, 42crmo and other special bearing steels. Generally, in order to improve the reliability, the raceways and teeth are quenched, and the inner and outer rings include a precision raceway to transmit the load and realize the relative rotation of the two parts of the equipment, which can better disperse and transmit the high stress generated during the operation of the equipment and improve the equipment stability.

The rolling elements of truck crane slewing bearing are divided into column type or ball type. Usually, the ball or roller is made of hard chrome alloy, and the material is generally Gcr15. It is installed inside the raceway and used with the isolation block to transmit force through rotation. The size of the rolling elements is suitable to deal with the expected stress and evenly distributed load on the inner and outer rings, and can reduce the rotation resistance to a certain extent.

Truck crane slewing ring bearing-structure type
1.Four contact ball slewing bearings
2.Cross roller slewing bearings
3.Double row ball slewing bearings
4.Triple row roller slewing bearings
5.Ball and roller combined slewing bearings;

Single row four point contact ball slewing bearings
This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.

Single row cross roller slewing bearings
This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.

Double row different ball diameter slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.

Triple row cylindrical roller slewing bearings
This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.

Roller/ball combination slewing bearings
This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.


Truck crane slewing ring ------Technical Data:
1.Inner ring and outer ring material: 42CrMo, 50Mn
2.Steel ball or roller material: Gcr15, Gcr15 SiMn, 304 Stainless steel, 440 Stainless steel
3. Precision: P0. P6. P5.
4. Outside diameter: 1000~17000mm
5. Cage/retainer: Nylon or Steel Cage
6: Seal: NBR, Oil resistant rubber,Viton,Skeleton oil seal

Truck crane slewing bearing------Surface treatment:
1: black surface treatment
2: Surface sandblasting and painting
3: Surface chrome plating
4: Surface spray zinc treatment
5: Surface phosphating treatment
6: Dacromet treatment

Truck crane slewing ring------Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,

Truck crane slewing ring bearing--- Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Can design and produce non-standard models according to the special requirements of customers.
6.Can provide BV, LR,DNV,CCS, NK,KR, GL,ABS certificate

Truck crane slewing ring bearing- Maintain
1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation .

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

3.Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.

Slewing bearings are also called slewing rings, slewing ring bearings, swing bearings, swing rings, turntable bearings, slew bearings, and swivel bearings.
Slewing bearing are generally accompanied with installing holes, internal gear, external gear, lubricating hole and sealing devices, which enable mainframe structural compact in design, guide reliable, and easy to maintain.
Slewing bearings have non-gear, external gear, and internal gear with different types, including single row ball slewing bearings, double row ball slewing bearings, crossed roller slewing bearings, three row roller slewing bearings, and ball & roller combination slewing bearings.
LYXQL can produce slewing bearings with diameter 1500mm to 17000mm with long working life.
All slewing bearings produced by LYXQL usually have a warranty period of 2 years.

Roller slewing bearing is a series of slewing bearings.
Slewing bearings are also called slewing rings, slewing ring bearings, swing bearings, swing rings, turntable bearings, slew bearings, and swivel bearings.
Roller slewing bearings have non-gear, external gear, and internal gear types.
As per different structures, roller slewing bearings are including crossed roller slewing bearings, three row roller slewing bearings, tapered roller slewing bearings and ball & roller combination slewing bearings.
LYXQL can produce slewing bearings with diameter 1500mm to 17000mm with long working life.
All slewing bearings produced by LYXQL usually have a warranty period of 2 years.
LYXQL slewing bearings are widely used for wind turbines, harbor cranes, ship deck cranes, shield machines, bulk materials handling equipment, ferris wheels and etc.

Cross Roller slewing bearing is a series of slewing bearings.
Slewing bearings are also called slewing rings, slewing ring bearings, swing bearings, swing rings, turntable bearings, slew bearings, and swivel bearings.
Cross roller slewing bearings have non-gear, external gear, and internal gear types.
LYXQL can also produce other roller slewing bearings, including three row roller slewing bearings, tapered roller slewing bearings and ball & roller combination slewing bearings.
LYXQL can produce slewing bearings with diameter 1500mm to 17000mm with long working life.
All slewing bearings produced by LYXQL usually have a warranty period of 2 years.
LYXQL slewing bearings are widely used for wind turbines, harbor cranes, ship deck cranes, shield machines, bulk materials handling equipment, ferris wheels and etc.

Double row ball slewing bearing is also called 8 point contact ball slewing ring bearing and two row ball slewing rings, it is composed of inner ring ,outer ring,rolling element, spacer and other components. The two-row ball slewing bearing has three seat-rings. The steel balls and the retainers may be directly arranged into the upper and lower racers. Two rows of steel balls with different diameters are fitted according to the force. Such open type fitting is extraordinary convenient, the loading angels at upper and lower races are 90 which can carry both of the axial force and capsizing moment. When the radial force is larger than 1/10 of the axial force, the races should be newly designed.
Gear type of two row ball slewing rings, according to the bearing gear type,it can be divided into 3 types, external gear, internal gear and non-gear type. the external gear and internal gear slewing ring bearing connected with a pinion and makes the machinery turns round, the gear teeth can be hardened to improve its wear resistance, hardness is usually HRC45-55.
Material of double row ball slewing ring bearing, all the raw material comes from domestic well know steel company, the outer ring and inner ring usually use C45, 50Mn, S48C, 42CrMo and other customized material, rolling elements such as balls and rollers use high quality chrome steel Gcr15 or Gcr15SiMn, for the cages or retainers, usually we use nylon, steel, alloy aluminum and etc, for the seals, usually NBR or VITON.
Application of double row ball slewing bearings, this kind of slewing ring bearings are widely used in Aerial Hydraulic Platforms, Band Conveyor,Excavators, Deck Cranes, Mobile Cranes, Shiploader/Unloader, Tidal Energy Plants, Tower Cranes, Truck Mounted Cranes, Wind Energy Plants
Packing of 8 point contact ball slewing ring bearings, Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;And then packed with craft paper and professional belts; At last, with wooden box totally at the outer packing to invoid the rust or the moist;  We can depend on the customers demand to be packed;

LYXQL is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer’s different technical requirements.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing rings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions;
On the other hand, slewing bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily.
LYXQL flange slewing ring bearings also called light type bearings, are usually used for low revolution while shaking and strained with an enormous axial force, moment and in some parts with radial force simultaneously.
Consequently the requirements for loading are stricter than ordinary bearings. If the selection of the slewing ring bearing has been wrong it will cause a great damage. Hence it is necessary to evaluate the exact forces acting on the slewing ring bearing and to select the suitable slewing ring bearings.
Material of flange slewing ring bearing, all the raw material comes from domestic well know steel company, the outer ring and inner ring usually use C45, 50Mn, S48C, 42CrMo and other customized material, rolling elements such as balls and rollers use high quality chrome steel Gcr15 or Gcr15SiMn, for the cages or retainers, usually we use nylon, steel, alloy aluminum and etc, for the seals, usually NBR or VITON.
Structure:
Flange slewing bearing has three different types:
flange slewing bearing with dule flange
Flange slewing bearing with external gear and internal flange
Flange slewing bearing with internal gear and external flange
Features
Single row ball slewing ring bearings have following features:
Compact in structure and light in weight.
Application:
flange slewing ring bearings are widely used in slewing conveyers, welding arm and positioned, medium duty cranes, excavators and other engineering machines

if slewing bearings operating at high temperatures for a long time, it can be a problem for many reasons, including loss of radial clearance, lubricant degradation, and microstructural changes of ring and rolling element materials resulting in loss of hardness and dimensional instability. These and other problems associated with high operating temperatures can be resolved with specialized heat treatment of rings, internal design considerations and proper material choices. LYXQL High Temperatured Slewing Bearing is redesigned as per different temperature, usually we use high temperature resisted cages which is high quality steel cage, well known brand grease, seal and others.                                                                                                                                                                                                                                                                                                                                     LYXQL has the capacity to manufacture  slewing bearing with outer diameter from 1500mm to 18000mm, we are a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer’s different technical requirements.   we can manufacture the following different bearings.                                               Single row four point contact ball slewing bearings
    This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.
Single row cross roller slewing bearings
    This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.
Double row different ball diameter slewing bearings
    This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.
Triple row cylindrical roller slewing bearings
    This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.
Roller/ball combination slewing bearings
    This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.

LYXQL is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer’s different technical requirements.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing rings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions;
On the other hand, slewing bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily.
LYXQL single row ball slewing ring bearings are usually used for low revolution while shaking and strained with an enormous axial force, moment and in some parts with radial force simultaneously.
Consequently the requirements for loading are stricter than ordinary bearings. If the selection of the slewing ring bearing has been wrong it will cause a great damage. Hence it is necessary to evaluate the exact forces acting on the slewing ring bearing and to select the suitable slewing ring bearings.
The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at four points, via which the axial force, radial force and resultant moment may be born simultaneously.

Structure:
Single row ball slewing bearing has three different types:
Single row ball slewing bearing with no gear
Single row ball slewing bearing with external gear
Single row ball slewing bearing with internal gear

Features
Single row ball slewing ring bearings have following features:
Compact in structure and light in weight.

Application:
Single row ball slewing ring bearings are widely used in slewing conveyers, welding arm and positioned, medium duty cranes, excavators and other engineering machines

sureface treatment of slewing ring bearing is usually blackening, phosphate, zinc plating, nikel plating, blasting, painting and etc, process of the surface treatment is commonly to forme a surface layer on the surface of the slewing ring bearings, the purpose of surface treatment is to meet the requirements of rust-proof, corrosion resistance, wear resistance,decoration and etc.                                                                                                                                                                                                                                                      LYXQL is  a pioneer in slewing bearing field, can manufacture 1000-18000mm slewing bearings, has its own sureface treatment factory. 

Advantages:

• Extensive experience in the industry.

• Accepts small orders.

• ISO certified.

• Offers a wide variety of models.

• Provides a 7*24 hours hotline for crane assistance.

• Implements a strict quality control system to ensure the quality of slewing bearings.

Transportation:

• Timely delivery with usual production time ranging from 15-50 days depending on the bearing diameter.

• Offers various delivery terms including EXW, FOB, CIF, DDU, etc.

• Multiple transportation options: express (DHL, UPS, TNT, FEDEX, etc.), air, sea, truck, and railway.

Applications of Slewing Ring Bearings:
Slewing ring bearings are widely used in industry and known as "the machine joints" Here under is the specific slewing bearing applications

• Construction machinery (cranes, excavators, loaders, scrapers).

• Metallurgical machinery (for steel plants).

• Heavy machinery equipment (mining machinery, concrete machinery).

• Marine machinery equipment (vessels, port hoisting machines, port oil transfer equipment, onshore and offshore cranes).

• Light machinery equipment (paper machines, plastic and rubber machines, weave machines).

• Wind power generators.

• Packing machinery.

Split Slewing Rings are ideal for situations where a bearing has to be fitted around an existing structure, the purpose of split slewing ring is to reduce the disassemble and installation cost, as well as the transportation cost for large diameters.  structure of split slewing bearing, Structure:
four point contact ball slewing bearings/ single row crossed roller slewing ring bearing/ double row ball slewing ring bearing/triple row roller slewing bearings/ball and roller combined slewing rings.  
Material of flange slewing ring bearing, all the raw material comes from domestic well know steel company, the outer ring and inner ring usually use C45, 50Mn, S48C, 42CrMo and other customized material, rolling elements such as balls and rollers use high quality chrome steel Gcr15 or Gcr15SiMn, for the cages or retainers, usually we use nylon, steel, alloy aluminum and etc, for the seals, usually NBR or VITON.                                                                                                                                                                 

Transportation:

All LYXQL slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.

Slewing Ring Bearings------Applications:

1. Construction machinery (e.g. cranes, excavators, loader, scraper)
2. Metallurgical machinery (e.g. for steel plant)
3. Heavy machinery equipment (e.g. mining machinery, concrete machinery)
4. Marine machinery equipment (e.g. vessel, port hoisting machine, port oil transfer equipment, onshore and offshore crane)
5. Light machinery equipment (e.g. paper machine, plastic, rubber machine, weave machine)
6. Wind power generator
7. Packing machinery  

LYXQL is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer’s different technical requirements.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing rings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions;
On the other hand, slewing bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily.
LYXQL slewing ring bearings are usually used for low revolution while shaking and strained with an enormous axial force, moment and in some parts with radial force simultaneously.
Consequently the requirements for loading are stricter than ordinary bearings. If the selection of the slewing ring bearing has been wrong it will cause a great damage. Hence it is necessary to evaluate the exact forces acting on the slewing ring bearing and to select the suitable slewing ring bearings.

Three row roller slewing ring bearing has three seat-rings, which separate the upper, lower and radial raceway, via which the load of each row of the rollers may be specified. Thus it can carry different load simultaneously and its load capacity is the largest one of the four types

Structure:
Triple row roller slewing bearing has three different types:
Triple row roller slewing bearing with no gear
Triple row roller slewing bearing with external gear
Triple row roller slewing bearing with internal gear

Features  
Triple row roller slewing ring bearings have following features:
Larger axial and radial dimension, compact structure

Application
Triple row roller slewing rings are widely used in heavy-duty machines which require large working radius, such as bucket-wheel excavators, wheeled cranes, ship cranes, ladle turret, auto cranes etc.

Pitch bearing, is also called blade bearing, pitch slewing bearing, blade slewing bearing.
Pitch bearing is located on its oar system. Pitch bearing is used for adjusting the blade facing wind angle. Pitch bearing mainly supports radial load, axial load and tilting moment. The pitch bearing is required to be sealed tightly, high reliability, smooth rotation, strong stability, surface anti-corrosive, long life over 20 years and strictly start moment non loaded.
Pitch bearing is normally designed as four-point contact ball slewing bearings or double-row ball slewing bearings with internal gear and three row roller slewing bearing with internal gear.
As professional pitch bearing manufacturer, LYXQL year production capacity is more than 15000pcs.

The main shaft bearing of a wind turbine is the main component that absorbs wind load and transmits load. Its performance not only affects the transmission efficiency, but also determines the maintenance cost of the main drive chain.
Due to the harsh working conditions and long-life and high-reliability requirements of wind turbines, main shaft bearings have high technical complexity, which is recognized as one of the most difficult technologies, and has become an important factor affecting the development of wind power manufacturing.
The main shaft bearing includes: double-row spherical roller bearings, tapered roller bearings, cylindrical roller bearings, double-row tapered roller bearings, etc.
Main shaft bearings also have high requirements for material, lubrication, sealing, coating, cage and other aspects.

Yaw bearing is a kind of slewing bearings. It is mounted on yaw structure of wind generator cabin base. Yaw bearing is used for adjusting the facing wind angle of the wind generator at proper time and transits thunders to the ground.
Yaw bearing mainly supports axial load, radial load and tilting moment. Yaw bearing is required to be tight sealed, high reliability, smooth rotation, strong stability, surface anti-corrosive, long life over 20 years and strictly start moment non loaded.
Yaw bearing is normally designed as four-point contact ball slewing bearing or double rows ball slewing bearings.
As professional yaw bearing manufacturer, LYXQL year production capacity is more than 15000pcs.
All yaw bearings produced by LYXQL have a warranty period of 5 years.