JXR/XR
Product Category:
Crossed Roller Bearings
Keywords:
JXR/XR
Product Details
Product Introduction
Crossed taper roller bearings have two sets of races and taper rollers brought together at right angles with alternate taper rollers facing in opposite directions, and with nylon separator between the taper rollers to avoid the mutual friction between rollers and the overturning effect, which reducing the rotation torque, and that can bear combined loads of radial loads, axial loads and overturning moments. The bearing has the very high rotating accuracy, the precision of the commonly used is the P5 and P4 level. The bearings adopt the design of large cone angle and taper, which make the bearing complement have larger stride distance and the limited speed is much higher than the crossed roller bearing, and the friction torque is also lower than that.
Product Features
1、High precision: precision at P4.
2、High rigidity: these series bearings with preload and can be adjusted in order to achieve the best preload.
3、High load bearing: can withstand radial load, axial load, and tilting load.
4、High speed: rollers rolling in the raceway, 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.
6、Compact structure, small installation space.
Application Fields
This bearings are used in limited space, low rotating center of mass, high speed requirements, such as, industrial robots, machine precision circular indexing table, vertical and horizontal boring machine, vertical grinding machine, rotary surface grinding machine, vertical lathe, large gear hobbing machine, turntable, large telescope (radio, optical), rotating camera, and so on.
Size Specification Table
| Bearing Type | Inner Diameter | Outer Diameter | Width | Chamfer | Basic load rating (Radial) | Basic load rating (Axial) | Limited Speed | Weight |
| d | D | H | R | kN | kN | r/min | kg | |
| JXR637050 | 300 | 400 | 37 | 1.5 | 63 | 80.1 | 720 | 13 |
| JXR652050 | 310 | 425 | 45 | 2.5 | 82.2 | 102 | 640 | 20 |
| JXR699050 | 370 | 495 | 50 | 3.0 | 93.6 | 119 | 600 | 30 |
| XR496051 | 203.2 | 279.4 | 31.75 | 1.5 | 51.3 | 61.6 | 800 | 6.5 |
| XR678052 | 330.2 | 457.2 | 63.5 | 3.3 | 100 | 123 | 620 | 35 |
| XR766051 | 457.2 | 609.6 | 63.5 | 3.3 | 141 | 178 | 520 | 51 |
| XR820060 | 580 | 760 | 80 | 6.4 | 215 | 234 | 300 | 100 |
| XR855053 | 685.8 | 914.4 | 79.375 | 3.3 | 270 | 344 | 260 | 150 |
| XR882055 | 901.7 | 1117.6 | 82.55 | 3.3 | 300 | 396 | 200 | 185 |
| XR889058 | 1028.7 | 1327.15 | 114.3 | 3.3 | 405 | 534 | 160 | 400 |
| XR897051 | 1549.4 | 1828.8 | 101.6 | 3.3 | 518 | 699 | 80 | 500 |
1. The calculation of the load is on the basic of 90×106(The bearing material is carburizing steel).
2. The limited speed depends on the preload, the fit tolerance and the heat release conduction and so on. The limited speed values in the table all for reference on the basic of circulating lubrication.
Note:
1) We also can offer other types structures crossed taper roller bearings.
2) If any need special dimension, with fixing holes on inner rings or outer rings, higher precision,or other structures, please contact with Hongjing!
JXR/XR
Keywords:
JXR/XR
Product Packaging
Application Fields
Industrial robot
CNC rotary table
Medical devices
Machine tool equipment
Testing instrument
Harmonic reducer
Our Advantages
Technical Strength
Product accuracy
Quality Assurance
Service Advantages
We can provide more solutions.
Our main products include cross roller bearings, rotary table bearings, rotary table bearings with internal and external teeth, thrust bearings, flexible bearings, etc. The accuracy can reach P2/P4/P5 level, with complete specifications to meet the needs of various high-end precision equipment.
Contact Us
Phone number:
Contact email:
Contact Address:
Factory Building No. 1, Yingdang Line, Hongshan Township, Xigong District, Luoyang City, Henan Province
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