XR,JXR Crossed taper roller bearing
Bearing features:
1. High precision: precision at P4, P2.
2. High rigidity: these series bearings are with preload.
3. High load capacity: can support radial load, axial load, and tilting load.
4. High speed: rollers do pure rolling, so the limited speed of crossed taper roller bearings is higher than that of crossed cylindrical roller bearings.
5. Low friction: the frictional torque of crossed taper roller bearings is much lower than that of crossed cylindrical roller bearings.
Application scope:
Crossed taper roller bearings can be widely applied in high speed vertical lathe, high precision working table, vertical boring machine, and main axis of grinding machine etc.
|
bearing type
( Click on the following types and check the details of products) |
boundary dimensionsmm
mm |
basic dynamic load rating
N |
1)
Speed Limitied Oil |
Weight kg |
||||
|
d
|
D
|
T
|
R
|
(radial)
|
Axial
|
|||
|
XR496051
|
203.2
|
279.4
|
31.75
|
1.5
|
41000 | 492000 |
800
|
6.5 |
|
XR678052
|
330.2
|
457.2
|
63.5
|
3.3
|
80000 | 98400 |
620
|
35 |
|
XR766051
|
457.2
|
609.6
|
63.5
|
3.3
|
106000 | 133000 |
520
|
51 |
|
XR820060
|
580
|
760
|
80
|
6.4
|
106000 | 209000 |
300
|
100 |
|
XR855053
|
685.8
|
914.4
|
79.375
|
3.3
|
180000 | 224000 |
260
|
150 |
|
XR882055
|
901.7
|
1117.6
|
82.55
|
3.3
|
225000 | 297000 |
200
|
185 |
|
XR889058
|
1028.7
|
1327.15
|
114.3
|
3.3
|
283000 | 374000 |
160
|
400 |
|
XR897051
|
1549.4
|
1828.8
|
101.6
|
3.3
|
326000 | 489000 |
80
|
500 |
|
JXR637050
|
300
|
400
|
37
|
1.5
|
47200 | 60000 |
720
|
13 |
|
JXR652050
|
310
|
425
|
45
|
2.5
|
61600 | 76500 |
640
|
20 |
|
JXR699050
|
370
|
495
|
50
|
3
|
70200 | 89200 |
600
|
30 |
In order to make it easy for calculation, the load rating noted in the above file is based on working 3000h at the speed of 500r/m, i.e. L10 life. While the limited bearing speed is depended on bearing dimension and the real load, and the speed is possible to be under 500r/m.