d - 4 mm

D - 10 mm

B - 3 mm

C - 3 mm

d1 - 5,9 mm

d2 - – mm

r1 min. - 0,2 mm

r2 min. - 0,2 mm

D1 - 8,2 mm

D2 - – mm

da min. - 5,6 mm

Da max. - 8,4 mm

ra max. - 0,2 mm

Weight - 0,001 Kg

Basic dynamic load rating (C) - 0,553 kN

Basic static load rating (C0) - 0,245 kN

Fatigue load limit (Pu) - 0,011

Reference speed - 130000 r/min

Limiting speed - 80000 r/min

Calculation factor (f0) - 12

Calculation factor (kr) - 0,02

• Model Number: W637/4X
• Inner Diameter：4mm Outer Diameter：10mm Width：3mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-21
• Application:medical Equipment,embroidery cloth,natural instruments,hardware,top industry,Laser Devices,manual Tools,boring bar boring bar,Garment Accessories,Industrial,thread processing machine
• Similar models:SKF W637/4XR-2Z ISO 637ZZ SKF W637/8-2ZS AST 637H SKF W637-2RS1 SKF W637-2Z ISB SS637/3 SKF W637/4XR INA F-238637.02.KL SKF W637/4X-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W637/4X products，there is large inventory of SKF W637/4X . We has been built up long-term cooperation with SKF company, could make a bulk order of the W637/4X Which SKF W637/4X is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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