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 - – r/min

Limiting speed - 43000 r/min

Calculation factor (f0) - 6,1

Calculation factor (kr) - 0,025

• Model Number: W639/3-2RS1
• Inner Diameter：3mm Outer Diameter：8mm Width：4mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-09
• Application:Automation,,spectrometer,EEG,chemical raw materials and reagents,non-motor vehicle Electric car,screen filter,sterilizers,Hair styling device,Plastic Equipment,rolling machine
• Similar models:SKF W639/2.5R-2ZS CYSD 1639-ZZ SKF W639-2RS1 NSK 639ZZ ISO 639 SKF W639/3R-2Z KOYO 639ZZ SKF W639-2Z CYSD 1639-2RS CYSD 1639-Z
• BEARING POWER International Trading Co.,Ltd. specialize in W639/3-2RS1 products，there is large inventory of SKF W639/3-2RS1 . We has been built up long-term cooperation with SKF company, could make a bulk order of the W639/3-2RS1 Which SKF W639/3-2RS1 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  15101/15250	25,4	63,5	20,638	ISO	Tapered Roller Bearings
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  7215C	75	130	25	CRAFT	Angular Contact Ball Bearings
  7310 C-UX	50	110	54	CX	Angular Contact Ball Bearings
  7314	70	150	35	NTN	Angular Contact Ball Bearings
  GE120XF/Q	120	180	85	LS	Plain Bearings
  JF9549/10	95	160	46	CX	Tapered Roller Bearings
  K60X75X49.8	60,000	75,000		NTN	Needle Roller Bearings
  LJ1.7/8-N	47,625	101,6	20,6375	RHP	Deep Groove Ball Bearings
  MR 128	8	12	2,5	NSK	Deep Groove Ball Bearings
  SIL15ES	15			SKF	Plain Bearings
  UCTU315+WU500	75		82	NACHI	Bearing Units
  VKBA 3581				SKF	Wheel Bearings
  NAO80x110x30	80	110	30	FAG	NEEDLE BEARINGS
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  RNAF30x42x16	42		16	FAG (Old No.)	NEEDLE BEARINGS
  241/670	670	1090	412	Torrington	SPHERICAL ROLLER BEARINGS
  SA1-180	180	260	105	NTN	SPHERICAL PLAIN BEARINGS
  NU-3016	80	125	34	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS