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：2025-04-22
• Application:Ball screw,Pump,plastic molding,oral medical device,food packaging,expectoration machine,nail products,Vertical machining,Film machine,chemical instruments,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving
• Similar models:ISO 639 NSK 639 NSK 639ZZ CYSD 1639 CYSD 1639-RS SKF W639 SKF W639/2.5-2ZS KOYO 639ZZ ISB SS639/2-ZZ AST 639H-2RS
• 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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