d - 9 mm

D - 30 mm

B - 10 mm

d₂ - - 15.3 mm

D₂ - - 25.28 mm

r_1,2 - min. - 0.6 mm

d_a - min. - 13 mm

D_a - max. - 26 mm

r_a - max. - 0.6 mm

Basic dynamic load rating - C - 4.9 kN

Basic static load rating - C₀ - 2.3 kN

Fatigue load limit - P_u - 0.1 kN

Reference speed - 60000 r/min

Limiting speed - 36000 r/min

Calculation factor - k_r - 0.035

Calculation factor - f₀ - 12.9

Mass bearing - 0.0335 kg

• Model Number: W 639
• Inner Diameter：30mm Outer Diameter：9mm Width：10mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-21
• Application:Cylinder Type,meat products machine,defogging and degreasing,aerial work platform,pneumatic Pump,Pneumatic Control Elements,EEG,hydraulic actuator,office outdoor camping equipment,transportation equipment,wheel lathe
• Similar models:ISO 639 CYSD 1639-RS SKF W639/2-2Z AST 639H NSK 639VV AST 639HZZ FBJ 639 SKF W639/3R-2RS1 SKF W639/2.5-2ZS ISO 639ZZ
• BEARING POWER International Trading Co.,Ltd. specialize in W639 products，there is large inventory of SKF W 639 . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 639 Which SKF W639 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
  09078/09195	19.05	49,225	19,845	FBJ	Tapered Roller Bearings
  2205-2RS	25	52	18	CX	Self-Aligning Ball Bearings
  2LA-HSE918ADG/GNP42	90	125	18	NTN	Angular Contact Ball Bearings
  3984/3920	66.675	112.713	30.163	NACHI	Tapered Roller Bearings
  61832 ZZ	160	200	20	ISO	Deep Groove Ball Bearings
  6219 M	170	95	32	SKF	Deep Groove Ball Bearings
  7020UCDB/GNP5	100	150	48	NTN	Angular Contact Ball Bearings
  GE 120 TXA-2LS	180	120	85	SKF	Plain Bearings
  FRW4-2RS	6,35	15,875		AST	Deep Groove Ball Bearings
  GAC32T	32	58	17	AST	Plain Bearings
  K55X63X30	55	63	30	FBJ	Needle Roller Bearings
  LPAT 80	80	120	165	SKF	Plain Bearings
  NA 6919UU	95	130	64	IKO	Needle Roller Bearings
  NN3928MB	140	178	37	NSK	Cylindrical Roller Bearings
  RNA4840	220	250	50	CX	Needle Roller Bearings
  SF4454	220,000	295,000	33,000	NTN	Angular Contact Ball Bearings
  SMF83	3	8	2,5	ZEN	Deep Groove Ball Bearings
  STF730RV1011g	730	1030	750	NSK	Cylindrical Roller Bearings
  YRTE200	200	300		INA	Complex Bearings
  Z-566490.ZL-K-C5	300	500	160	FAG	Cylindrical Roller Bearings