NINGBO DONGHUANG BEARING CO.,LTD.
| Supply Ability | 100000 pcs per month |
| Delivery Time | 30 days according to purchasing quantity |
| Packaging Details | Industrial plastic tube packing or single box packing |
| Steel Material | Gcr15 Chrome Steels |
| Rubber Seals Materials | NBR/ACM/FKM+SPCC |
| Steel Balls | Tolerance G10 |
| Cages | Steel or plastic |
| Brand Name | VCD |
| Model Number | 6204 ZZ/6203 ZZ/6202 ZZ |
| Certification | ISO9001:2000 |
| Place of Origin | Ningbo,China |
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Product Specification
| Supply Ability | 100000 pcs per month | Delivery Time | 30 days according to purchasing quantity |
| Packaging Details | Industrial plastic tube packing or single box packing | Steel Material | Gcr15 Chrome Steels |
| Rubber Seals Materials | NBR/ACM/FKM+SPCC | Steel Balls | Tolerance G10 |
| Cages | Steel or plastic | Brand Name | VCD |
| Model Number | 6204 ZZ/6203 ZZ/6202 ZZ | Certification | ISO9001:2000 |
| Place of Origin | Ningbo,China | ||
| High Light | electric motor sleeve bearings ，deep groove roller bearing | ||
1.Materials of Bearing Seals
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 |
2.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 |
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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