JRA
Product Category:
Crossed Roller Bearings
Keywords:
JRA
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
JRA series (outer ring division) is a kind of small size of inner /outer rings crossed roller bearing, its structure is same as to the RB series. It is best suited for robots and mechanical rotating parts need such as light weight, compact design.
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 B1 | Rmin | ds | Dh | Cr (kN) | Cor (kN) | kg | |
| JRA 5008 | 50 | 66 | 57 | 8 | - | 53.5 | 60.5 | 5.1 | 7.19 | 0.08 |
| JRA 6008 | 60 | 76 | 67 | 8 | 0.5 | 63.5 | 70.5 | 5.68 | 8.68 | 0.09 |
| JRA 7008 | 70 | 86 | 77 | 8 | 0.5 | 73.5 | 80.5 | 5.98 | 9.8 | 0.1 |
| JRA 8008 | 80 | 96 | 87 | 8 | 0.5 | 83.5 | 90.5 | 6.37 | 11.3 | 0.11 |
| JRA 9008 | 90 | 106 | 97 | 8 | 0.5 | 93.5 | 100.5 | 6.76 | 12.4 | 0.12 |
| JRA 10008 | 100 | 116 | 107 | 8 | 0.5 | 103.5 | 110.5 | 7.15 | 13.9 | 0.14 |
| JRA 11008 | 110 | 126 | 117 | 8 | 0.5 | 113.5 | 120.5 | 7.45 | 15 | 0.15 |
| JRA 12008 | 120 | 136 | 127 | 8 | 0.5 | 123.5 | 130.5 | 7.84 | 16.5 | 0.17 |
| JRA 13008 | 130 | 146 | 137 | 8 | 0.5 | 133.5 | 140.5 | 7.94 | 17.6 | 0.18 |
| JRA 14008 | 140 | 156 | 147 | 8 | 0.5 | 143.5 | 150.5 | 8.33 | 19.1 | 0.19 |
| JRA 15008 | 150 | 166 | 157 | 8 | 0.5 | 153.5 | 160.5 | 8.82 | 20.6 | 0.2 |
| JRA 16013 | 160 | 186 | 172 | 13 | 0.8 | 165 | 179 | 23.3 | 44.9 | 0.59 |
| JRA 17013 | 170 | 196 | 182 | 13 | 0.8 | 175 | 189 | 23.5 | 46.5 | 0.64 |
| JRA 18013 | 180 | 206 | 192 | 13 | 0.8 | 185 | 199 | 24.5 | 49.8 | 0.68 |
| JRA 19013 | 190 | 216 | 202 | 13 | 0.8 | 195 | 209 | 24.9 | 51.5 | 0.69 |
| JRA 20013 | 200 | 226 | 212 | 13 | 0.8 | 205 | 219 | 25.8 | 54.7 | 0.71 |
JRA
Keywords:
JRA
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
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Contact Address:
Factory Building No. 1, Yingdang Line, Hongshan Township, Xigong District, Luoyang City, Henan Province
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