Active Member
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[China]
Address: No. C Building Runfengyuan Industrial Park, No.5175 Yiyuan Road, Xin'an Street, Baoan District, Shenzhen
Contact name:Sharon
Shenzhen Daiwa Bearing Company Limited |
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Bearing show: Precision Deep Groove Ball Bearings(EMQ Bearings) 693ZZ 3*8*4mm
Material:
RINGS & BALLS vacuum degassed, high carbon chromium bearing
steel GCr15 is the standard material for precision bearing rings
and balls. The material has uniform specification as AISL
52100(America)DIN100 Cr6(German), JISSUJ2(Japan)
These deep-groove ball bearings are suited to parts of devices that require high-speed rotation, low-friction torque and low vibration/noise in order to make such devices smaller, lighter-weight and thinner.
Ⅰ. Material
| China | USA | Germany | Japan | Sweden | - |
| Gcr15 | (AISI)52100 | (DIN)100Cr6 | (JIS)SUJ2 | SKF3 | MKJ3 |
Ⅱ. Accuracy
| Country | Standard | Accuracy Grade | ||||
| China | GB | 0 | 6 | 5 | 4 | 2 |
| ISO | ISO | 0 | 6 | 5 | 4 | 2 |
| Sweden | SKF | P0 | P6 | P5 | P4 | P2 |
| Germany | DIN | P0 | P6 | P5 | P4 | P2 |
| Japan | JIS | P0 | P6 | P5 | P4 | P2 |
| America | ANSI | ABEC1 | ABEC3 | ABEC5 | ABEC7 | ABEC9 |
Ⅲ. Vibration and Noise
According to ralated standard, the vibration noise(dB) of "DAW" bearing for their vibration under acceleration
and divided into four groups:Z1,Z2,Z3,Z4.
Also the bearing can be divided into four groups in according to vibration speed" V1,V2,V3,V4.
Ⅳ. Clearance
| Code | C2 | C3 | C4 | C5 |
| um | 3~8 | 5~10 | 6~12 | 10~16 |
Ⅴ. Retainer (Optional)
Ⅵ. Daiwa bearing series:
1.MR series bearings
2.67 series bearings
3.68 series bearings
4.69 series bearings
5.60 series bearings
6.62 series bearings
7.63 series bearings
Ⅶ .More info about Daiwa
If any question Plz contact with us:
Sharon Liu
Tel: +86-138-2357-3563
mail:szdhll@dawbearing.com
