Cross Roller Precision Bearings
A double outer race and two inner rings, with rollers spaced by nylon separators,it Designed to offer the highest levels of rotation accuracy and rigidity while conserving space and saving material costs.
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.
Applications
●Precision rotary and indexing tables for machine tools
●Vertical and horizontal boring mills Vertical grinding machines
●Rotary surface grinding machines
●Large gear hobbing machines
●Turrets – gun and radar
●Large telescopes (radio and optical)
●Swiveling cameras
●Steering pivots and castors
●Pivots where height is restricted
●Microscope tables
●Crane center pivots
●Swiveling bogies
●Welding manipulators
●Large tanker mooring buoys
●Rotary assembly jigs Industrial robots
Bearings Model | Boundary dimensions | Exchange model | ||||||
d | D | B | r | SKF | NACHI | URB | PSL | |
mm | mm | mm | min | |||||
Customized | 150 | 230 | 30 | 1 | BFKB353243/HA4 | |||
Customized | 160 | 240 | 30 | 1.1 | BFKB353240/HA4 | |||
Customized | 200 | 280 | 30 | 1.5 | 200XRN28 | |||
XR496051 | 203.2 | 279 | 31.75 | 1.5 | 616093A | |||
XR496052 | 203.2 | 279 | 31.75 | 1.5 | ||||
Customized | 240 | 300 | 30 | 1 | BFKB353203/HA4 | |||
Customized | 250 | 310 | 25 | 1 | BFKB353212/HA4 | |||
Customized | 250 | 350 | 40 | 1.3 | BFKB353215/HA4 | 250XRN35 | ||
JXR637050 | 300 | 400 | 36.492 | 1.5 | ||||
XR637050 | 300 | 400 | 37 | 1.5 | 616094A | 300XRN50 | ||
JXR678054 | 300 | 480 | 60 | 1.5 | ||||
JXR652050 | 310 | 425 | 45 | 2.5 | BFKB634097 | |||
XR678052 | 330 | 457 | 63.5 | 3.3 | 615661A | 300XRN50 | PSL912-309A | |
. | 350 | 470 | 50 | 3.3 | BFKB353216/HA4 | 350XRN47 | ||
JXR699050 | 370 | 495 | 50 | 3.3 | ||||
Customized | 400 | 480 | 40 | 1.1 | BFKB353224/HA4 | |||
400 | 550 | 60 | 2.5 | BFKB353219/HA4 | 400XRN55 | |||
XR736052 | 432.03 | 571.5 | 38.1 | 3.3 | ||||
XR766051 | 457.2 | 609.6 | 63.5 | 3.3 | 615894A | 0457XRN060 | XD.10.0457P5 | PSL912-308A |
XR766052 | 424.95 | 614.924 | 65 | 3.3 | ||||
XR820060 | 580 | 760 | 80 | 3.3 | 615662A | 580XRN76 | XD.10.0580P5 | PSL912-304A |
XR820061 | 580 | 760 | 80 | 6.4 | ||||
XR836050 | 600 | 830 | 80 | 6.4 | 600XRN83 | |||
XR844050 | 685.8 | 914.4 | 79.375 | 6.4 | ||||
XR855053 | 685.8 | 914.4 | 79.375 | 3.3 | 615659A | 0685XRN091 | XD.10.0686P5 | PSL912-305A |
XR855056 | 685.8 | 914.4 | 79.375 | 3.3 | ||||
XR882054 | 901.7 | 1117.6 | 82.555 | 3.3 | ||||
XR882055 | 901.7 | 1117.6 | 82.555 | 3.3 | 615895A | 0901XRN112 | XD.10.0902P5 | PSL912-306A |
XR882058 | 939.8 | 1117.6 | 82.55 | 3.3 | ||||
Customized | 950 | 1170 | 85 | 3 | BFKB353251/HA4 | |||
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 |