Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 639

W 639

Dimensions

d		9	mm
D		30	mm
B		10	mm
d₂	≈	15.3	mm
D₂	≈	25.28	mm
r_1,2	min.	0.6	mm

Abutment dimensions

d_a	min.	13	mm
d_a	max.	15.2	mm
D_a	max.	26	mm
r_a	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	4.36	kN
Basic static load rating	C₀	2.32	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

Mass bearing

0.033

Model Number: W 639
Inner Diameter：9mm Outer Diameter：30mm Width：10mm
Reference speed:36000 r/min Limiting speed:60000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-04-17
Application:ultra-quiet generators,Dental Drill etc,noise reduction equipment,boring bar boring bar,tooth filling,plastic blow molding,rubber products machinery and equipment,ventilation fans,granulator,building decoration raw materials and accessories,historical instruments
Similar models:W 639-2Z W 639-2RZ W 639-2RS1 W 639/3-2RS1 W 639/2.5 R-2ZS LL 639249/210 W 639/3 R-2Z W 639/3-2Z W 639/2 R-2Z 316639 AG
BEARING POWER International Trading Co.,Ltd. specialize in W639 products，there is large inventory of SKF W 639 Deep groove ball bearings. 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	Type
BD-240/710 ECAK30/W33-AOH 240/710 G	670	1030	315	Bearings, units and housings
52x85x8 CRW1 R	52	85	8	Seals
71900 CE/HCP4AH	10	22	6	Bearings, units and housings
71907 ACE/P4A	35	55	10	Bearings, units and housings
71916 ACD/HCP4AL	80	110	16	Bearings, units and housings
7214 BECBPH	70	125	24	Bearings, units and housings
75x110x10 CRW1 R	75	110	10	Seals
90885	-	-	50	Seals
K 89314 TN	70	125		Bearings, units and housings
NU 1988 MA	440	600	74	Bearings, units and housings
PCM 18018580 M	180	185	80	Bearings, units and housings
SAW 23538 x 6.7/8 T	174.625	-	-	Bearings, units and housings

Purchase the SKF W 639 Please fill in the following

Hot number： 16005/HR11QN 2213 EKTN9 + H 313 28x40x7 HMSA10 V 591/900 M 619/800 M 7004 ACE/P4AL 7322 BECCM 9843 FSYE 3 11/16 N G 26x34x4 NU 3152 ECMA PCM 556050 M PFD 20 TR RMS 24 RNU 310 ECP