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XR JR Series Crossed Roller Bearing
They provide a high degree of stiffness and low rotational torque within a minimal envelope. This design should be considered when a four-point contact ball bearing does not meet the operating performance requirements for torque and stiffness…
Product Description
They provide a high degree of stiffness and low rotational torque within a minimal envelope. This design should be considered when a four-point contact ball bearing does not meet the operating performance requirements for torque and stiffness.
Applications:
XR Series bearings have been used successfully in applications requiring extra
stiffness with a low torque requirement including:
Radar
Military turrets
Machine tools
Tunnel boring machines
| Bearing Number | Dimensions | ||
| d mm | D mm | B mm | |
| XR490651 | 203.2 | 279.4 | 31.75 |
| XR678052 | 330.2 | 457.2 | 63.5 |
| XR766051 | 457.2 | 609.6 | 63.5 |
| XR820060 | 580 | 760 | 80 |
| XR855053 | 685.8 | 914.4 | 79.38 |
| XR882055 | 901.7 | 1117.6 | 82.55 |
| XR897051 | 1549.4 | 1828.8 | 101.6 |
| JXR637050 | 300 | 400 | 37 |
| JXR652050 | 310 | 425 | 45 |
| JXR699050 | 370 | 495 | 50 |