d - 2,5 mm

D - 7 mm

B - 3,5 mm

C - 3,5 mm

d1 - 3,8 mm

d2 - – mm

r1 min. - 3,7 mm

r2 min. - 3,7 mm

D1 - 6,2 mm

D2 - 0,15 mm

da min. - 3,8 mm

Da max. - 6,2 mm

ra max. - 0,15 mm

Weight - 0,00055 Kg

Basic dynamic load rating (C) - 0,221 kN

Basic static load rating (C0) - 0,067 kN

Fatigue load limit (Pu) - 0,003

Reference speed - 160000 r/min

Limiting speed - 80000 r/min

Calculation factor (f0) - 6,6

Calculation factor (kr) - 0,025

• Model Number: W639/2.5-2ZS
• Inner Diameter：2,5mm Outer Diameter：7mm Width：3,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-10
• Application:electromagnet,extruder,spectrometer,building decoration raw materials and accessories,Machine tool accessories,engine,aerial work equipment,industrial fans,circulating pump,other mold,mechanical annex
• Similar models:SKF W639/3-2Z FBJ 639ZZ SKF W639-2Z AST 639H-2RS CYSD 1639-Z SKF W639/3-2RS1 SKF W639/3R-2Z ISO 639 SKF W639/3R-2RS1 SKF W639-2RZ
• BEARING POWER International Trading Co.,Ltd. specialize in W639/2.5-2ZS products，there is large inventory of SKF W639/2.5-2ZS . We has been built up long-term cooperation with SKF company, could make a bulk order of the W639/2.5-2ZS Which SKF W639/2.5-2ZS 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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