NINGBO DONGHUANG BEARING CO.,LTD.
| Delivery Time | 30 working days |
| Packaging Details | Industrial plastic tube packing |
| Tolerance | ABEC-3 |
| Noise Class | Z3V3 and Z4V4 |
| Steel Balls Class | G10 or G5 |
| Cages | Steel Made |
| Rubber Seals | NBR or FKM or ACM |
| name | water pump ball bearing |
| Brand Name | VCD |
| Model Number | 6202 2RS/6203 2RS/6201 2RS |
| Certification | ISO9001:2000 |
| Place of Origin | Cixi,Ningbo,Zhejiang,China |
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Product Specification
| Delivery Time | 30 working days | Packaging Details | Industrial plastic tube packing |
| Tolerance | ABEC-3 | Noise Class | Z3V3 and Z4V4 |
| Steel Balls Class | G10 or G5 | Cages | Steel Made |
| Rubber Seals | NBR or FKM or ACM | name | water pump ball bearing |
| Brand Name | VCD | Model Number | 6202 2RS/6203 2RS/6201 2RS |
| Certification | ISO9001:2000 | Place of Origin | Cixi,Ningbo,Zhejiang,China |
| High Light | water pump bearing ，water pump ball bearing | ||
Application
Power generation
Aggregate processing
Oil fields&Pumps
Crop shears
Rolling mills
Gear drives &Hoists
Mining & construction
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 |
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 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
1995
Ecer Certification：
Active Member
Ningbo DONGHUANG Bearing Co., LTD, was founded in 1995. DONGHUANG Bearing devotes to developing the inner diameter of 4mm - 60mm micro, small and medium deep groove ball bearings. The advanced automatic production lines, complete testing instruments and experimental means, the standar... Ningbo DONGHUANG Bearing Co., LTD, was founded in 1995. DONGHUANG Bearing devotes to developing the inner diameter of 4mm - 60mm micro, small and medium deep groove ball bearings. The advanced automatic production lines, complete testing instruments and experimental means, the standar...
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