d - 4 mm

D - 9 mm

B - 2,5 mm

C - 2,5 mm

d1 - 5,2 mm

d2 - – mm

r1 min. - 0,1 mm

r2 min. - 0,1 mm

D1 - 7,5 mm

D2 - – mm

da min. - 4,8 mm

Da max. - 8,2 mm

ra max. - 0,1 mm

Weight - 0,0006 Kg

Basic dynamic load rating (C) - 0,364 kN

Basic static load rating (C0) - 0,114 kN

Fatigue load limit (Pu) - 0,005

Reference speed - 140000 r/min

Limiting speed - 85000 r/min

Calculation factor (f0) - 6,5

Calculation factor (kr) - 0,02

• Model Number:W618/4
• Inner Diameter：4mm Outer Diameter：9mm Width：2,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-12
• Application:crimping tools,Display Devices,sample cup,Special Equipment,Automobile,hydraulic actuator,Roller,nail products,mechanical annex,Grinding and polishing equipment,scientific instruments
• Similar models:ZEN S61802-2Z ZEN 61828 ISO 61824ZZ ZEN 61872 NKE 61808 SKF W61806-2RZ ISB 61896MA CRAFT 61812-2RS ISB 61844 NKE 61800-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W618/4 products，there is large inventory of SKF W618/4 . We has been built up long-term cooperation with SKF company, could make a bulk order of the W618/4 Which SKF W618/4 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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