d - 2 mm

D - 6 mm

B - 3 mm

C - 3 mm

d1 - 3 mm

d2 - – mm

r1 min. - 2,9 mm

r2 min. - 2,9 mm

D1 - 5,4 mm

D2 - 0,15 mm

da min. - 2,9 mm

Da max. - 5,4 mm

ra max. - 0,15 mm

Weight - 0,00035 Kg

Basic dynamic load rating (C) - 0,19 kN

Basic static load rating (C0) - 0,051 kN

Fatigue load limit (Pu) - 0,002

Reference speed - 180000 r/min

Limiting speed - 90000 r/min

Calculation factor (f0) - 6

Calculation factor (kr) - 0,025

• Model Number:W639/2-2Z
• Inner Diameter：2mm Outer Diameter：6mm Width：3mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-12
• Application:Ball screw,hydraulic control element,miscellaneous instruments,Pneumatic Actuator,intermediate,rock drilling machinery,wall industry,Hydraulic Couplings,bio-chemical,boring bar boring bar,squeeze machine etc
• Similar models:CYSD 1639 SKF W639/2.5-2ZS AST 639HZZ KOYO 639ZZ SKF W639-2Z SKF W639/3-2Z SKF W639-2RZ AST 639H ISB SS639/3-ZZ SKF W639/1.5R-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W639/2-2Z products，there is large inventory of SKF W639/2-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W639/2-2Z Which SKF W639/2-2Z 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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