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Cross Roller Bearing

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XRA Series Crossed Roller Bearings

XRA Series Crossed Roller Bearings

XRA Series Cross Roller Bearings(Ultra-Thin Wall, Inner Ring Rotation, Integrated Inner and Outer Ring Design, Two Outer Rings, One Inner Ring)

The XRA series of cross roller bearings can be used as a direct replacement for the RA and RA-C series by THK, as well as the CRBS series by IKO.

This series features an ultra-thin wall design for both the inner and outer rings, creating a compact solution suitable for applications that require lightweight and miniaturized rotating components.


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XRA Series Cross Roller Bearings：

  • Structure: Integrated design with two outer rings and one inner ring.
  • Rotation: Inner ring rotation.
  • Rolling Elements: Cylindrical rollers and cross rollers.
  • Configuration: Radial and axial.
  • Characteristics: High precision and ultra-thin wall.
  • Inner Diameter: Minimum: 50 mm, Maximum: 200 mm.
  • Outer Diameter: Minimum: 66 mm, Maximum: 226 mm.
  • Width: Minimum: 8 mm, Maximum: 13 mm.

  • Applications: Ideal for scenarios requiring high precision inner ring rotation.

Structural Diagram of the XRA Series Cross Roller Bearings：


Introduction2.1


XRA Series Crossed Roller Bearing Model Parameter Table:


Nominal Model Outer Dimension (mm) Basic Rated Load Weight Corresponding Model
Inner Diameter Outer Diameter Width Radial (kN)
THK IKO
d D B C Co Kg
XRA 5008 50 66 8 5.1 7.19 0.08 RA5008 CRBS508
XRA 6008 60 76 8 5.68 8.68 0.09 RA6008 CRBS608
XRA 7008 70 86 8 5.98 9.8 0.1 RA7008 CRBS708
XRA 8008 80 96 8 6.37 11.3 0.11 RA8008 CRBS808
XRA 9008 90 106 8 6.67 12.4 0.12 RA9008 CRBS908
XRA 10008 100 116 8 7.15 13.9 0.16 RA10008 CRBS1008
XRA 11008 110 126 8 7.45 15 0.15 RA11008 CRBS1108
XRA 12008 120 136 8 7.84 16.5 0.17 RA12008 CRBS1208
XRA 13008 130 146 8 7.94 17.6 0.18 RA13008 CRBS1308
XRA 14008 140 156 8 8.33 19.1 0.19 RA14008 CRBS1408
XRA 15008 150 166 8 8.82 20.6 0.2 RA15008 CRBS1508
XRA 16013 160 186 13 23.3 44.9 0.59 RA16013 CRBS16013
XRA 17013 170 196 13 23.5 46.5 0.64 RA17013 CRBS17013
XRA 18013 180 206 13 24.5 49.8 0.68 RA18013 CRBS18013
XRA 19013 190 216 13 24.9 51.5 0.69 RA19013 CRBS19013
XRA 20013 200 226 13 25.8 54.7 0.71 RA20013 CRBS20013


Note:


1. The nominal model with a sealing ring is XRA ***UU.

2. For high precision requirements, please choose the inner ring rotation option.

3. If you have any needs or questions, please contact us, and we will reply as soon as possible.

You can also send an email to [email protected], call 400-680-3790, or directly consult our online customer service.


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