Tapered crossed roller bearings
Timken Standard XR/JXR serie The bearing features two sets of races and rollers brought together at right angles with alternate rollers facing in opposite directions. The height of the cross section is more or less sam with the single row bearing,so it can save space and bearing housing material.this series bearings with high precision,high rigidity and able to withstand higher overturning moments, is ideal for the table bearing of machine tools, including vertical boring and grinding machines etc.
Size range:
ID 203.200 mm to 2463.800 mm (8.000 in. to 97.000 in.)
OD 279.400 mm to 2819.400 mm (11.000 in. to 111.000 in.)
More parameters
| Bearings Model | Boundary dimensions | Exchange model | ||||||
| d | D | B | r | SKF | NACHI | URB | PSL | |
| mm | mm | mm | min | |||||
| XR889058 | 1028.7 | 1327.15 | 114.3 | 3.3 | BFKB353282/HA4 | 1028XRN132 | XD.10.1029P5 | PSL 912-307A |
| XR889059 | 1028.7 | 1327.15 | 95.25 | 3.3 | ||||
| XR889060 | 1028.7 | 1327.15 | 114.3 | 3.3 | ||||
| 1270 | 1524 | 95.25 | 1.8 | 615897A | ||||
| XR897051 | 1549.4 | 1828.8 | 101.6 | 3.3 | 615898A | XD.10.1549P5 | ||
| XR903054 | 1879.6 | 2197.1 | 101.6 | 5.4 | 615899A | |||
| 2463.8 | 2819.4 | 114.3 | 5.4 | 634078A | ||||
Design Attributes:
Provides benefits of two-row bearings in single-row space.
Withstands high overturning moments.
Combines the compactness of a single-row bearing with the stability of a two-row bearing.
Product Application
Vertical boring mills
Vertical grinding machines
Other machine tools