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Rings and balls vacuum dealing with treatment of high carbon chromium bearing steel GCR15 is the standard material to produce the accurate internal and external circle and ball. This material is same with the USA AISL 52100, Germany DIN 100Cr6, Japan JISSUJ2.
The standard cage is made of carbon steel by cold, but in-corrosive environment, no parallel, or under high-speed operation, we can use stainless steel, nylon or phenolic resin cage according to customer’s request.
Applications :
Electric motors, machine tools, automobiles, precise devices, home appliances, chemical machineries, general machineries, agricultural machineries, etc
Production process:
1. Abrasive machining of steel pipe;
2. The inner & outer ring grinding;
3. The precision work of inner ring & outer ring
4. Bearing cleaning;
5. The Assembly of inner ring , outer ring , bearing balls & cage, etc.
6. Bearing inspection( precison, noise & vibration levels).
7. Packing: in plastic tube, then in carton & pallet or in color single box, then in carton & pallet, or as the customers' request.
The size of bearing clearance directly related to the use of noise, vibration, normal temperature, service life and the assembly of machinery motion effect. Therefore, it is very important that we choose the suitable assembly bearing clearance. We divided from small to big according to radial clearance range into C2, C0, C3, C4 and C5. Specific reference see the chart:
Bore | C2 | C0 | C3 | C4 | C5 | ||||||||
Over | Including | ||||||||||||
mm | Inch | mm | Inch | Min | Max | Min | Max | Min | Max | Min | Max | Min. | Max |
2.5 | 0.0984 | 10 | 0.3937 | 0 | 7 | 2 | 13 | 8 | 23 | 14 | 29 | 20 | 37 |
10 | 0.3937 | 18 | 0.7087 | 0 | 9 | 3 | 18 | 11 | 25 | 18 | 33 | 25 | 45 |
18 | 0.7887 | 24 | 0.9449 | 0 | 10 | 5 | 20 | 13 | 28 | 20 | 36 | 28 | 48 |
24 | 0.9449 | 30 | 1.1811 | 1 | 11 | 5 | 20 | 13 | 28 | 23 | 41 | 30 | 53 |
30 | 1.1811 | 40 | 1.5748 | 1 | 11 | 6 | 20 | 15 | 33 | 28 | 46 | 40 | 64 |
40 | 1.5748 | 50 | 1.9685 | 1 | 11 | 6 | 23 | 18 | 36 | 30 | 51 | 45 | 73 |
50 | 1.9685 | 65 | 2.5591 | 1 | 15 | 8 | 28 | 23 | 43 | 38 | 61 | 55 | 90 |