RA Crossed Roller Bearings(outer ring division type with inner rotating, thin section) This model is a compact type of model with extremely thin outer and inner rings. It is optimal for areas where the swiveling unit needs to be light and small. For example, the rotational part of industrial robots or manipulator.
RA Crossed Roller Bearings Features:
Our cross-roller bearings, because the divided inner ring or outer ring, after the rollers and spacers are installed, is fixed with the cross-roller ring to prevent separation from each other, so install the cross-roller shaft It is easy to operate when ringing. Since the rollers are arranged in a cross, only one set of cross roller rings can bear loads in all directions. Compared with the conventional model, the rigidity is increased by 3 to 4 times. At the same time, because the inner ring or outer ring of the cross roller bearing has a two-part structure, the bearing gap can be adjusted, and even if preload is applied, high-precision rotational movement can be obtained.
The classification and model series of the crossed roller bearings we produce:
- RA type (outer ring split, ultra-thin type)
- The RA series model is a compact type that reduces the thickness of the RB inner and outer rings to the limit. It is suitable for parts that require light weight and compact design, such as rotating parts of robots and manipulators.
1. RA Crossed Roller Bearings Structure
With the Cross-Roller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent 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.

2.RA Crossed Roller Bearings Features
Compact, Highly Rigid Swivel Bearings, Achieving a Superb Rotation Accuracy
- High speed capability
- Reduce shaft length and processing costs, thermal expansion causes limited changes in geometric dimensions
- Adopt nylon divider, low moment of inertia, low starting torque, easy to control angle indexing
- Optimized pre-tightening force, high rigidity, high precision of guiding roller operation
- Carburized steel provides excellent impact resistance and surface abrasion resistance
- Simple but well lubricated

3. RA Crossed Roller Bearings Applications
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

4. RA Crossed Roller Bearings Video Introduction
6.RA Crossed Roller Bearings Escription


7.RA Series Cross Roller Bearing Number
RA10008 Crossed Roller Bearings
RA11008 Crossed Roller Bearings
RA12008 Crossed Roller Bearings
RA13008 Crossed Roller Bearings
RA14008 Crossed Roller Bearings
RA15008 Crossed Roller Bearings
RA16013 Crossed Roller Bearings
RA17013 Crossed Roller Bearings
RA18013 Crossed Roller Bearings
RA19013 Crossed Roller Bearings
RA20013 Crossed Roller Bearings
RA5008 Crossed Roller Bearings
FREQUENTLY ASKED QUESTIONS
Please refer to the table above for current hot models, If you need other models, please contact us
The current inventory is sufficient, 3-5 days can be sent
Yes, all of our products are covered by a 1-2 year unconditional refund or exchange warranty policy
We cooperate with logistics including: UPS, Fedex, EMS, DHL and sea freight, please contact our website customer service for specific arrival time
After the product is sent out, the logistics bill number will be sent to you first, you can track the transportation of goods at any time on the website
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Email: info@lkpbearing.com