Radial Clearance: Cm,C0 and C3 can be produced
Noise Class:Z3V3,Z4V4 class
Dimension Tolerance: ABEC-3 class
Packing: Industrial tube packing or customized packing.
Applications :
Electric motors, machine tools, automobiles, precise devices, home
appliances, chemical machineries, general machineries, agricultural
machineries, etc
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 |
Also can consult the table below choose bearing clearance
| The usage situation | Use examples | Choose clearance |
| Strict control noise, vibration installation precision, high
position | Instrument and equipmentRoll neck calender Low noise and small
motor | C2,C0 |
| General load, speed, working temperature is not high | Transmission machinery, reducer and other general machinery | C0 |
| High temperature, high speed, high requirements for service life | Automobile generator and engine | C3 |
| Using high temperature environment, should not be the occasion of
heat | Drying machine, paper making machinery, and so on | C3,C4 |
| High temperature, high speed, and large impact load | Vibrating screen, speed gear
| C4 |
| Inner and outer ring take the surplus interference, large volume,
high temperature, heat dissipation | Vibration type pressure road, machine car rear wheel | C5 |
Bearing material
Outer ring, inner ring, ball:
High-carbon chromium bearing steel Gcr15(JIS SUJ2,AISI 521000), or
stainless steel 9Cr18(AISI 440C)
Cages:
Steel plates and nylon can be used in general situation, while
rubber and stainless steel for special usage.
Cover:
Steel plate for shield, and rubber for seals
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.
