Here below are some of the slewing bearings we also produce :
| Medium size four-point contact ball slewing bearings with an external gear |
| Slewing bearing No. |
OD/mm |
ID/mm |
Weight |
| RKS.061.20.0414 |
504 |
342 |
31 |
| RKS.061.20.0544 |
640.8 |
472 |
43 |
| RKS.061.20.0644 |
742.8 |
572 |
52 |
| RKS.061.20.0744 |
838.8 |
672 |
59 |
| RKS.061.20.0844 |
950.4 |
772 |
71 |
| RKS.061.20.0944 |
1046.4 |
872 |
77 |
| RKS.061.20.1094 |
1198.4 |
1022 |
91 |
| Medium size four-point contact ball slewing bearings with an external gear |
| Slewing bearing No. |
OD/mm |
ID/mm |
Weight |
| RKS.061.25.1204 |
1338 |
1119 |
154 |
| RKS.061.25.1314 |
1448 |
1229 |
166 |
| RKS.061.25.1424 |
1558 |
1339 |
180 |
| RKS.061.25.1534 |
1668 |
1449 |
193 |
| RKS.061.25.1644 |
1791 |
1536 |
237 |
| RKS.061.25.1754 |
1901 |
1646 |
257 |
| RKS.061.25.1904 |
2073.4 |
1796 |
300 |
| Medium size four-point contact ball slewing bearings with an internal gear |
| Slewing bearing No. |
OD/mm |
ID/mm |
Weight |
| RKS.062.20.0414 |
486 |
326.5 |
31 |
| RKS.062.20.0544 |
616 |
445.2 |
42 |
| RKS.062.20.0644 |
716 |
547.2 |
50 |
| RKS.062.20.0744 |
816 |
649.2 |
58 |
| RKS.062.20.0844 |
916 |
737.6 |
69 |
| RKS.062.20.0944 |
1016 |
841.6 |
76 |
| RKS.062.20.1094 |
1166 |
985.6 |
91 |
| Medium size four-point contact ball slewing bearings with an internal gear |
| Slewing bearing No. |
OD/mm |
ID/mm |
Weight |
| RKS.062.25.1204 |
1289 |
1072 |
145 |
| RKS.062.25.1314 |
1399 |
1182 |
160 |
| RKS.062.25.1424 |
1509 |
1292 |
172 |
| RKS.062.25.1534 |
1619 |
1402 |
185 |
| RKS.062.25.1644 |
1752 |
1495 |
235 |
| RKS.062.25.1754 |
1862 |
1605 |
252 |
| RKS.062.25.1904 |
2012 |
1729 |
300 |
Slewing Bearing
1. Introduction of LYHY slewing ring bearings
LYHY is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball slewing ring bearings, roller slewing bearings and precision slewing ring bearings as per customer's different technical requirements.
Slewing ring bearing is also called slewing ring, slewing 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 ring bearings 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 ring bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily.
2. Structure
2.1 Slewing ring bearings have different types as per different structures, here below is what we offering now:
Single row ball slewing ring bearings
Double row ball slewing ring bearings
Crossed roller slewing ring bearings
Triple row roller slewing ring bearings
Flange slewing ring bearings
2.2 The above slewing ring bearings can also be divided into three different types as per different transmissions:
Slewing ring bearings with no gear
Slewing ring bearings with external gear
Slewing ring bearings with internal gear
3. Features:
Slewing ring bearings have more features: compact structure, reliable guide, simple installation, and easily maintenance
4. Application:
Slewing ring bearings can be widely used in lifting & transport machinery, mining machinery, construction machinery, port hoisting machinery, port oil transfer equipment, onshore and offshore crane, excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipments and other large rotary device.
Single row ball slewing ring bearing
1. Introduction of LYHY single row ball slewing bearings
LYHY 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.
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.
2. Structure
Slewing ring bearings have different types as per different structures, here below is what we offering now:
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
3. Features
Single row ball slewing ring bearings have following features:
Compact in structure and light in weight.
4. 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
Double row ball slewing ring bearing
1. Introduction of LYHY double row ball slewing bearings
LYHY 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.
The double 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.
2. Structure:
Double row ball slewing bearing has three different types:
Double row ball slewing bearing with no gear
Double row ball slewing bearing with external gear
Double row ball slewing bearing with internal gear
3. Features:
Double row ball slewing ring bearings have following features:
Larger dimension of axial and radial and compact structure.
4. Application:
Double row ball slewing ring bearings are widely used in Tower cranes which require working radius over medium range, auto crane and loading (unloading) machinery.
Crossed roller slewing ring bearing
1. Introduction of LYHY crossed roller slewing bearings
LYHY 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.
With the cross roller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90° groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including, radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.
2. Structure:
Cross roller slewing bearing has three different types:
Cross roller ball slewing bearing with no gear
Cross roller ball slewing bearing with external gear
Cross roller ball slewing bearing with internal gear
3. Features
Cross roller slewing ring bearings have following features:
1. High precision: cross roller bearings can be made high precision bearings, at P4, P2.
2. High rigidity: These series roller bearings are with preload.
3. High load capacity: This series roller bearing can support axial load, radial load, and tilting load.
4. Small volume: this series roller bearing can save space for the machine.
4. Application
Cross roller slewing rings are widely applied in the precision rotary table, rotary joint of manipulator, medical equipment, and measuring instrument etc
Triple row roller slewing ring bearing
1. Introduction of LYHY triple row roller slewing bearings
LYHY 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.
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
2. 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
3. Features
Triple row roller slewing ring bearings have following features:
Larger axial and radial dimension, compact structure
4. 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.
Flange Slewing Bearing
1. Introduction of LYHY flange slewing bearings
LYHY 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.
Flange slewing bearing is a special slewing ring bearing, it can have one flange in the outer ring, or one flange in the inner ring, even it can have one flange in both inner ring and outer ring.
2. Structure:
Flange slewing bearing has three different types:
Flange slewing bearing with no gear
Flange slewing bearing with external gear
Flange slewing bearing with internal gear
3. Features
Flange slewing bearings have following features:
Compact structure and easily installment.
4. Application
Flange slewing bearings are widely used in tow truck, and other applications are the same as slewing bearings, such as lifting & transport machinery, mining machinery, construction machinery, excavator, concrete machine, paper machine, plastic and rubber machine and steel plant.
Excavator Slewing Bearing
1. Introduction of LYHY excavator slewing bearings
LYHY 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.
Excavator slewing bearing is a special slewing ring bearing as per its applications. And it is a very important part for excavators, we can supply excavator slewing bearings for both second-hand excavators for maintenance and new excavators.
2. Structure:
Excavator slewing bearing are usually made as per single row ball slewing bearing structure, and most of them are internal gear types, but some are external gear types.
3. Features
Excavator slewing bearings have familiar features as single row ball slewing ring bearings.
Compact structure, light weight and easily installment.
4. Application
Excavator slewing bearings are widely used for all brands of excavators, such as Hitachi, Kobelco, Sumitomo, Doosan, Hyundai, Samsung, Daewoo, Kato, Volvo and so on.
Slewing drive
1. Introduction of LYHY slewing drive
Slewing Drive is also called slewing gear, worm gear, worm drive, rotary drive, slew drive, worm gear reducer and rotary drive unit. At present the majority of such devices are caller Slewing Drive.
LYHY Slewing Drive movement can reduce power consumption, since the security role. In addition to the field of use in the daily solar power systems are usually used for Special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc. . The Slewing Drive in the solar photovoltaic industry, the general configuration DC planetary reduction motor or AC geared motors; main configuration of the hydraulic motor as a power-driven construction machinery
LYHY Slewing Drive principle of the large transmission ratio of the deceleration device to transmit motion and power between the two axes staggered in space. The Slewing Drive transmission is usually the case of the main components of the worm and wheel bearings, shell, and the power source
As the core component of turntable bearings, can withstand the axial load, radial load and overturning moment.
2. Structure
Slewing drive can be divided into two different structures as per different applications.
Light load slewing drive
Heavy load slewing drive
The dimensions of slewing drives include 3 inch, 5 inch, 7 inch, 9 inch, 12 inch, 14 inch, 17 inch, 21 inch and 25 inch.
3. Features:
Slewing drive is a special bearing. And a slewing drive usually consist of slewing bearing, worm shaft, housing, bearing, motor and so on. Motor drive the worm shaft, the outer ring of slewing bearing will rotate, the outer ring output the torque through flange while the inner ring of slewing bearing is fixed in housing.
LYHY Slewing Drive and rotary products, compared with the ease of installation, ease of maintenance, Installation space savings advantages to a greater extent.
4. Application:
Slewing drives are widely used in aerospace area, solar power systems, wind turbines, satellite broadcasting system, and engineering machinery like truck cranes, and man lifts, etc. Recently years, it has been prosperously used in photovoltaic power generation systems, special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc.
Light load slewing drive
1. Introduction of LYHY light load slewing drive
Slewing Drive is also called slewing gear, worm gear, worm drive, rotary drive, slew drive, worm gear reducer and rotary drive unit. At present the majority of such devices are caller Slewing Drive.
LYHY light load Slewing Drive is usually composed of a slewing ring, worm, casting housing, and standard components like bearing and bolts, etc. While used in photovoltaic power generation system, the slewing drive is usually used in combination with DC planetary speed reducer motor and AC speed reducer motor. While used in engineering equipment, it is regularly used in combination with hydraulic motor to function as power driving system.
2. Structure
According to the raceway diameter of the slewing ring, a light load slewing drive include L3 inch, L5 inch, L7 inch, L9 inch, L12 inch, L14 inch, L17 inch, L21 inch and L25 inch.
3. Features:
Light load slewing drive is a special bearing. And a slewing drive is usually composed of a slewing ring, worm, casting housing, and standard components like bearing and bolts, etc.
Slewing drive is able to sustain more axial load, radial load and tilting moment. Turntable or frame rotates at azimuth and elevation driven by slewing drive.
4. Application:
Slewing drives are widely used in special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc.
Heavy load slewing drive
1. Introduction of LYHY heavy load slewing drive
Slewing Drive is also called slewing gear, worm gear, worm drive, rotary drive, slew drive, worm gear reducer and rotary drive unit. At present the majority of such devices are caller Slewing Drive.
LYHY heavy load slewing drive is usually composed of a slewing ring, worm, casting housing, and standard components like bearing and bolts, etc. While used in photovoltaic power generation system, the slewing drive is usually used in combination with DC planetary speed reducer motor and AC speed reducer motor. While used in engineering equipment, it is regularly used in combination with hydraulic motor to function as power driving system.
2. Structure
According to the raceway diameter of the slewing ring, a heavy load slewing drive include
M3 ich, M5 inch, M7 inch, M9 inch, M12 inch, M14 inch, M17 inch, M21 inch, M25inch, H14 inch, H17 inch, H21 inch and H25 inch.
3. Features:
Heavy load slewing drive is a special bearing. And a slewing drive is usually composed of a slewing ring, worm, casting housing, and standard components like bearing and bolts, etc.
Slewing drive is able to sustain more axial load, radial load and tilting moment. Turntable or frame rotates at azimuth and elevation driven by slewing drive.
4. Application:
Slewing drives are widely used in special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc.
Except for the above item, we can also produce slewing bearing with double-row balls, crossed roller slewing bearings and also triple roll slewing bearings. If you have any requirement on the slewing ring bearing, please be free to contact us, we will be glad to hear from you.
| Model |
Track Diameter |
Weight/kg |
Number of bolt holes |
| 230.20.1000.013 |
1094 |
61.9 |
20 |
| 280.30.1400.013 |
1455 |
200 |
48 |
| 011.20.1385.000.11.1504 |
1502.4 |
201 |
54 |
| 012.20.1360.000.11.1504 |
1440 |
213 |
54 |
| 012.35.2690.000.11.1503 |
2820 |
1225 |
72 |
| 061.30.1500.200.111504 |
1677.6 |
338 |
48 |
| 062.25.1077.308.11.1504 |
1170 |
148 |
36 |
| 121.32.4250.990.41.1502 |
4476.8 |
2455 |
90 |
| 161.20.0710.890.11.1503 |
838.4 |
85 |
24 |
| 162.50.3000.891.41.1503 |
3191 |
1706 |
76 |
| RKS.21.0841 |
841 |
68 |
18 |
| RKS.21.0941 |
941 |
76 |
20 |
| RKS.21.1091 |
1091 |
86 |
20 |
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