The Source For Renewables™
Profile: June Lee
Country: China
Total Posts: 7
Date Of Birth: Wednesday, November 23, 1988
Latest Posts:

THB RB series crossed roller bearings, with separable outer ring for inner ring rotation, are ideal for industrial robots, hydraulic manipulators, speed reducers, etc.   Model No: RB60040 UU CCO  Features: Cross roller bearing Material: GCr15SiMn, equivalent to AST 52100&DIN 100Cr6 Dimensional accuracy: P4 Rotary accuracy: P5 Outer diameter: 700mm Inner diameter: 600mm Width: 40mm Weight: 29kg Radial dynamic loading C= 264 KN Radial static loading Co= 721 KN.   Regular stock list: RB2008 RB3010 RB3510 RB4010 RB5013 RB6013 RB7013 RB8016 RB9016 RB10016 RB12025 RB13025 RB15025 RB20025 RB25025 RB30025 RB30040 RB40035 RB45025 RB50025 RB60040 RB70045 RB80070 RB1000110 RB1250110

Posted On: February 08, 2015

 THB’s pitch bearings allow the turbine blade to be indexed or positioned to optimize blade angle, depending on wind speed. Our yaw bearings allow the turbine nacelle to rotate into the wind and support the nacelle on the tower.


Types:Generally, yaw and pitch bearing structures are single row ball slewing rings four-point contact bearing and double row ball slewing ring four-point contact bearing. And both these two types of bearings can be further divided into bearings without gears, bearings with internal gears, bearings with external gears according to gear position.


Material and heat treatment

Rolling elements’ material: GCr15 or GCr15SiMn bearing steel

Rings’ material: 42CrMo

Value of notched bar impact work: less than 27J at -20ºC

Hardness of rings: 55HRC~62HRC after hardening and quenching

Hardness of raceway: 55HRC~62HRC after hardening and quenching

Width of soft area: larger than plug diameter +35mm at the groove of the plug


Gear: involute cylindrical gear with radial modification coefficient x=+0.5; precision and modulus as ISO standard

Radial and axial clearance of yaw bearings: 0~50µm

Radial and axial clearance of pitch bearings: less than 0µm

Lubrication: through lubrication hole(screwed hole: M10×1)

Seal material: NBR

Spacer: self-lubricated spacers,which can compensate for lubrication when lubrication oil is unevenly distributed in order to maintain best lubrication status between balls and groove contact areas.

Cage: integrated steel cage which has simple structure and can save space and accommodate more balls to increase load capacity. Compared with traditional segmented cage, integrated cage is easier to assemble and more stable and reliable.

Preservation treatment: except for groove and gear all other surfaces should be applied thermal spraying anti-corrosion treatment according to ISO standard, when applied zinc coating, the thickness of anti-corrosion should be no less than 160µm, other anti-corrosive treatment shall be applied if it meets performance requirements of the machine.


Wind turbine applications:

Pitch and yaw

High and low wind speed

Land-based or offshore

800KW to 3.0 MW

Critical operating temps to -40ºC



Posted On: February 03, 2015

 Thrust Ball Thrust Bearings:  These bearings consist of three parts, a shaft and housing washer that have annular grooves in them and a caged ball bearing assembly that is sandwiched in between them. Assembly and mounting is a simple operation as the parts are separate. They support axial loads in one direction. Clearance is provided in the bore of one of the raceways to allow for alignment. Benefits:   Axial loading, ease of mounting and assembly Application:  road planes Steel rolling / heavy industry / Transmissions Agricultural, pumps, mining Rail and transport use General heavy engineering applications Marine, shipping and paper Great value quality parts dispatched the same day

Posted On: February 01, 2015

Inner diameter:45mm Number of Row:Single Row Bore Size:45mm Outer Diameter:100mm Size:36mm Type:Roller Bearing CET1:ISO 9001 2008 CET2:TUV Precision Rating:P5 or P6 or P0 Seals Type:Open Bearing Clearance:C0 C3 THB cylindrical roller bearings are available in many designs, series and sizes. The majority are single row bearings with a cage. High-capacity bearings, double row bearings, multi-row bearings, single, double and multi-row full complement bearings (without a cage) split bearings complete the THB standard assortment provided here. Bearings with a cage can accommodate heavy radial loads, rapid accelerations and high speeds. Full complement bearings incorporate a maximum number of rollers and are therefore suitable for very heavy radial loads at moderate speeds. THB high-capacity cylindrical roller bearings combine the high load carrying capacity of a full complement bearing with the high speed capability of a bearing with a cage.

Posted On: January 25, 2015

 Structure and CharacterCross Roller Bearing, because of its vertical arrangement of cylindrical roller with a 90V groove through theseparate spacers in the deep groove rolling surface. This design allows just one bearing to receive loads in alldirections including radial, axial and moment loads.At the same time, cross roller bearing is a lightweight, compact type with thinnest possible inner and outer rings,especially for the thinnest, with high rigidity. It is optimal for application such as joints and swiveling units of industrialrobots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medicalequipment, measuring instruments and IC manufacturing machines.Excellent Rotation accuracyThe spacers fitting among cross arranged rollers prevents rollers from skewing and the rotation torque fromincreasing due to friction between rollers. The spacers keeps rollers in their proper position, thereby preventing themfrom skewing. It does not cause unilateral contact of roller or locked rollers. Since the inner and outer rings aredesigned to be separable, the bearing clearance can be adjusted. In addition, a preload can be applied. Thesefeature enable accurate rotation.Easy HandlingThe inner and outer rings, which are separable, are secured to the body after being installed with rollers and spacers.Therefore, it is easy to handle the rings when installing the Cross Roller Bearing.ApplicationSpeed reducersRoboticsMotorsGearboxesFood processing and packing machineryCT machine


Posted On: January 19, 2015