d - 3 mm

D - 8 mm

B - 4 mm

C - 4 mm

d1 - 4,3 mm

d2 - – mm

r1 min. - 4,2 mm

r2 min. - 4,2 mm

D1 - 7,3 mm

D2 - 0,15 mm

da min. - 4,3 mm

Da max. - 7,3 mm

ra max. - 0,15 mm

Weight - 0,00083 Kg

Basic dynamic load rating (C) - 0,319 kN

Basic static load rating (C0) - 0,09 kN

Fatigue load limit (Pu) - 0,004

Reference speed - 150000 r/min

Limiting speed - 75000 r/min

Calculation factor (f0) - 6,1

Calculation factor (kr) - 0,025

• Model Number: W639/3-2Z
• Inner Diameter：3mm Outer Diameter：8mm Width：4mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-18
• Application:standing experimental equipment,Small air generators,surgical instruments,medical equipment,other processing,turret industry,root canal filling,transistor fittings,Storage Tool,pump accessories,directional control valve
• Similar models:SKF W639 SKF W639/3-2Z ISO 639 SKF W639/1.5R-2Z CYSD 1639 FBJ 639ZZ FBJ 639 ISB SS639/2-ZZ CYSD 1639-2RS SKF W639/3-2RS1
• BEARING POWER International Trading Co.,Ltd. specialize in W639/3-2Z products，there is large inventory of SKF W639/3-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W639/3-2Z Which SKF W639/3-2Z 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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  NN3038K/W33	190	290	75	CYSD	Cylindrical Roller Bearings
  N217	85	150	28	CRAFT	Cylindrical Roller Bearings
  NKI45/35-TN-XL	45	62	35	INA	Needle Roller Bearings
  NP537150/Y32008XM	41	68	19	Timken	Tapered Roller Bearings
  NUP219-E-TVP3	95	170	32	NKE	Cylindrical Roller Bearings
  PSL 611-3	203,2	360,05	92,1	PSL	Tapered Roller Bearings
  1916HCDUL	80	110	16	Barden	ANGULAR CONTACT BALL BEARINGS
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  905	48	25		INA	THRUST BALL BEARINGS
  SAF634	5.9375			Torrington	PILLOW BLOCKS
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  N-096			2.3850	CONSOLIDATED	LOCKNUTS