DCM Angular Contact Thrust Bearing C3 C4 Clearance ABEC-3 Precision ID 20mm
ID 20mm Angular Contact Ball Bearings P5 P4 P2 V1 V2 V3 V4 High Precision Low Noise Low Vibration High Speed Long Life
Features
Angular contact ball bearings are the structural variants of deep groove ball bearings, and mainly bear combined radial and axial loads. They are divided into C, AC, and B structures according to the magnitude of the axial load. It is characterized by small friction coefficient, high limit speed, and the high manufacturing accuracy, and is widely used in various precision machineries.
To bear predominate radial load and subsidiary axial load from both directions, lower cost and price, low running resistance, high limiting speed, possible to reach higher rotating precision and pretty low vibration level, in addition, possible to make into sealing structure.
Product Specification
| d | D | B | r | r1 | Cr | Cor | Grease | Oil | Wt | da min | Da max | ra max | New code |
| mm | mm | mm | min | min | kN | kN | r/min | r/min | kg | mm | mm | mm | |
| 20 | 42 | 12 | 0.6 | 0.3 | 10.5 | 6.02 | 23000 | 32000 | 0.067 | 25 | 37 | 0.6 | 7004C |
| 42 | 12 | 0.6 | 0.3 | 10 | 5.77 | 20000 | 28000 | 0.067 | 25 | 37 | 0.6 | 7004AC | |
| 42 | 12 | 0.6 | 0.3 | 8.85 | 5.11 | 15000 | 18000 | 0.077 | 25 | 37 | 0.6 | 7004B | |
| 47 | 14 | 1 | 0.3 | 14.6 | 8.2 | 21000 | 30000 | 0.1 | 25 | 42 | 1 | 7204C | |
| 47 | 14 | 1 | 0.3 | 14 | 7.88 | 14000 | 17000 | 0.1 | 25 | 42 | 1 | 7204AC | |
| 47 | 14 | 1 | 0.6 | 12.5 | 7.03 | 13000 | 15000 | 0.117 | 25 | 42 | 1 | 7204B | |
| 52 | 15 | 1.1 | 0.6 | 18.5 | 9.99 | 20000 | 28000 | 0.141 | 26 | 46 | 1 | 7304C | |
| 52 | 15 | 1.1 | 0.6 | 17.9 | 9.65 | 13000 | 16000 | 0.141 | 26 | 46 | 1 | 7304AC | |
| 52 | 15 | 1.1 | 0.6 | 16.2 | 8.72 | 12000 | 14000 | 0.163 | 26 | 46 | 1 | 7304B |
Application
Electric motors
machine tools
automobiles
precise devices
home ppliances
chemical machineries
general machineries
agricultural machineries
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