robots dedicated cross roller ring harmonic drive precision bearing

harmonic drive precision bearing 

Quick Details

Structure: Other Structure, cross roller bearing
Type: Roller
Bore Size: 20 - 1250 mm
Outside Diameter: 36 - 1500 mm
Model Number: RB series
Precision Rating: P6,P5,P4,P2,USP
Seals Type: U,UU
Number of Row: Double Row

Structure & features

With the precision Cross-Roller bearing, cylindrical rollers are arranged with each roller perpendicular to the ad-jacent roller, in a 90 V 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.

1.High rotation accuracy
The spacer retainer fitting among cross-arrayed rollers prevents rollers from skewing and the rota- tional torque from increasing due to friction between rollers. Unlike conventional types using steel sheet retainers, the Cross-Roller Ring does not cause unilateral contact of roller or seize. Thus, even under a preload, the Cross-Roller Ring provides stable rotation.
Since the inner and outer rings are designed to be separable, the preload can be adjusted, and this
feature enables accurate rotation
2.Easy handing
3.skewing Prevention
4.Increased rigidity
5.Large load capacity



Q: Can I get samples first? Is it free or extra?
A:Yes,we can offer samples for free charge but do not pay freight cost.

Q:What the MOQ of your company?
A:MOQ is 1 pcs

Q:Can you offer door to door service?
A:Yes,by express(FedEx,DHL,TNT,UPS,EMS)

Q:Can you accept Trade Assurance order?
A:Yes,we accept Trade Assurance order.

Q:What are payment terms your company accept?
A:T/T,Western Union,Paypal,Credit Card