Main production:
Deep Groove Ball Bearing / Angular Contact Ball Bearing/ Taper
Roller Bearing/ Spherical Roller Bearing /Cylindrical Roller
Bearing / Thrust Ball Bearing /Thrust Roller Bearing /Self-aligning
ball bearing/Self-aligning roller bearing/Pillow Block Bearing
/Needle Roller Bearing /Tracking Roller Bearing/ Auto Bearing 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.
Bearing Seal
Bearing seal form into dust cover and plastic material seal. There
are various types of seal. Because of different seal material,
bearing to adapt condition will also change.
| Name Code | Characteristics | Using Temperature |
NBR Acrylonitrile-butadiene rubber | Oil resistance,heat resistance,resistance to wear | -40~120 |
FKM Fluorine rubber | Hear resistant,acid and alkali resistant and chemicals, oil
resistance preferred | -20~200 |
VMQ Silicone rubber | Heat and cold resistance, good compression deformation is small,
but the mechanical strength is not good | -60~230 |
ACM Polypropylene acid ester rubber | Heat resistance, oil resistance better than NBR, but resistance to
water and alkali is not strong | -20~150 |
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 |
Vibration tolerance date of single bearing Tolerance um/s
| Bore diancter | V | V1 | V2 | V3 | V4 |
| MM | L | M | H | L | M | H | L | M | H | L | M | H | L | M | H |
| 3,4 | 80 | 44 | 44 | 60 | 35 | 32 | 48 | 26 | 22 | 31 | 16 | 15 | 28 | 10 | 10 |
| 5,6 | 110 | 72 | 60 | 74 | 48 | 40 | 58 | 36 | 30 | 35 | 21 | 18 | 32 | 11 | 11 |
| 7,8,9 | 130 | 96 | 80 | 92 | 66 | 54 | 72 | 48 | 40 | 44 | 28 | 24 | 38 | 12 | 12 |
| 10,12 | 160 | 120 | 100 | 120 | 80 | 70 | 90 | 60 | 50 | 55 | 35 | 30 | 45 | 14 | 15 |
| 15 | 210 | 150 | 120 | 150 | 100 | 85 | 110 | 78 | 60 | 65 | 46 | 35 | 52 | 18 | 18 |
| 17 | 210 | 150 | 120 | 150 | 100 | 85 | 110 | 78 | 60 | 65 | 46 | 35 | 52 | 25 | 25 |
| 20 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 25 | 25 |
| 22,25 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 30 | 32 |
| 28 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 35 | 40 |
| 30,32 | 300 | 240 | 190 | 200 | 150 | 130 | 150 | 120 | 100 | 90 | 75 | 60 | 70 | 35 | 40 |
| 35 | 300 | 240 | 190 | 200 | 150 | 130 | 150 | 120 | 100 | 90 | 75 | 60 | 70 | 42 | 45 |
| 40 | 360 | 300 | 260 | 240 | 180 | 160 | 180 | 150 | 130 | 110 | 90 | 80 | 82 | 50 | 50 |
| 45 | 360 | 300 | 260 | 240 | 180 | 160 | 180 | 150 | 130 | 110 | 90 | 80 | 82 | 60 | 60 |
| 50 | 420 | 320 | 320 | 280 | 200 | 200 | 210 | 160 | 160 | 125 | 100 | 100 | 95 | 70 | 70 |
