JRU
Product Category:
Crossed Roller Bearings
Keywords:
JRU
Product Details
Structure of Crossed Roller Bearings
The structure of the crossed cylindrical roller bearing is divided into the outer ring split and the inner ring as a whole; the outer ring as a whole, the inner ring split and the inner and outer rings are all three forms. The rolling elements are cylindrical rollers, which are vertically arranged at 90°. In the V-shaped raceway, the rollers are separated by spacers. This structure enables a single bearing to withstand loads in various aspects such as axial load, radial load and overturning moment. At the same time, due to the maximum miniaturization of the external dimensions, and the high rigidity and rotation accuracy of the bearing, as well as the composite bearing capacity, it is most suitable for the joint part or rotating part of industrial robots, the rotary table of the machining center, and the rotation of the manipulator. Department, precision rotary table, medical machine, measuring instrument and other occasions.
Product Introduction
JRU series (one—piece of inner and outer ring), as the mounting holes are provided, it is no need to fix the presser flange and the housing. Besides, it has an integrated inner and outer ring structure, its performance is minimally affected by the mounting procedure, so it is ensure to get stable rotation accuracy and torque. This type can be used for both inner ring and outer ring rotation.
Technical Specifications
Unit: mm
| Bearing Type | Inner Diameter | Outer Diameter | Roller Pitch Diameter | Height | Chamfer | Shoulder Size | Basic Load Rating(Radial) | weight | ||
| d | D | Dpw | B | Rmin | ds | Dh | Cr (kN) | Cor (kN) | KG | |
| JRU 28 | 10 | 52 | 27.2 | 8 | 0.3 | 24 | 31 | 2.91 | 2.43 | 0.12 |
| JRU 42 | 20 | 70 | 41.5 | 12 | 0.3 | 37 | 48 | 7.35 | 8.35 | 0.31 |
| JRU 57 | 25 | 80 | 57 | 12 | 0.6 | 47 | 58 | 8.61 | 10.6 | 0.4 |
| JRU 66 | 35 | 95 | 66 | 15 | 0.6 | 56 | 74 | 17.5 | 22.3 | 0.66 |
| JRU 85(G) | 55 | 120 | 85 | 15 | 0.6 | 79 | 93 | 20.3 | 29.5 | 0.96 |
| JRU 85X | ||||||||||
| JRU 124(G) | 80 | 165 | 124 | 22 | 1 | 114 | 134 | 33.1 | 50.9 | 2.6 |
| JRU 124X | ||||||||||
| JRU 148(G) | 90 | 210 | 147.5 | 25 | 1.5 | 133 | 162 | 49.1 | 76.8 | 4.9 |
| JRU 148X | ||||||||||
| JRU 178(G) | 115 | 240 | 178 | 28 | 1.5 | 161 | 195 | 80.3 | 135 | 6.8 |
| JRU 178X | ||||||||||
| JRU 228(G) | 160 | 295 | 227.5 | 35 | 2 | 208 | 246 | 104 | 173 | 11.4 |
| JRU 228X | ||||||||||
| JRU 297(G) | 210 | 380 | 297.5 | 40 | 2.5 | 272 | 320 | 156 | 281 | 21.3 |
| JRU 297X | ||||||||||
| JRU 445(G) | 350 | 540 | 445.4 | 45 | 2.5 | 417 | 473 | 222 | 473 | 35.4 |
| JRU 445X | ||||||||||
Notel: It can be used as optional accessory, JRU type with lubricating nipple.
Notel: Please add "-N" at the end of the model,if you need.
| Bearing Type | Inner ring | Outer ring | ||
| Fixing Holes Center Diameter PCD1 | Fixing Holes Dimension | Fixing Holes Center Diameter PCD2 | Fixing Holes Dimension | |
| JRU 42 | 28 | 6–M3 (Through Hole) | 57 | 6–Φ3.4 Through Hole Φ6.5 Counterbore Depth 3.3 |
| JRU 66 | 45 | 8–M4 (Through Hole) | 83 | 8–Φ4.5 Through Hole Φ8 Counterbore Depth 4.4 |
| JRU 85(G) JRU 85X | 65 | 8–Φ5.6 Through Hole (8–Φ5.5 Through Hole) 8–M5 (Through Hole) | 105 | 8–Φ5.5 Through Hole Φ9.5 Counterbore Depth 5.4 |
| JRU 124(G) JRU 124X | 97 | 10–Φ5.5 Through Hole Φ9.5 Counterbore Depth 5.4 10–M5 (Through Hole) | 148 | 10-Φ5.5 Through Hole Φ 9.5 Counterbore Depth 5.4 |
| JRU148(G) JRU 148X | 112 | 12–Φ9 Through Hole Φ14 Counterbore Depth 8.6 12–M8 (Through Hole) | 187 | 12–Φ9 Through Hole Φ14 Counterbore Depth 8.6 |
| JRU 178(G) JRU 178X | 139 | 12–Φ9 Through Hole Φ14 Counterbore Depth 8.6 12–M8 (Through Hole) | 217 | 12–Φ9 Through Hole Φ14 Counterbore Depth 8.6 |
| JRU 228(G) JRU 228X | 184 | 12–Φ11 Through Hole Φ17 Counterbore Depth 10.8 16–M10 (Through Hole) | 270 | 12–Φ11 Through Hole Φ17.5 Counterbore Depth 10. |
| JRU 297(G) JRU 297X | 240 | 16–Φ14 Through Hole Φ20 Counterbore Depth 13 16–M12 (Through Hole) | 350 | 16-Φ14 Through Hole Φ20 Counterbore Depth 13 |
| JRU 445(G) JRU 445X | 385 | 24–Φ14 Through Hole Φ20 Counterbore Depth 13 24–M12 (Through Hole) | 505 | 24–Φ14 Through Hole Φ20 Counterbore Depth 13 |
JRU
Keywords:
JRU
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.
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Contact Address:
Factory Building No. 1, Yingdang Line, Hongshan Township, Xigong District, Luoyang City, Henan Province
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