Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 639-2Z

W 639-2Z

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		30000	r/min
Calculation factor	k_r	0.035
Calculation factor	f₀	12.9

Mass

Mass bearing

0.035

Model Number: W 639-2Z
Inner Diameter：9mm Outer Diameter：30mm Width：10mm
Reference speed:30000 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：2026-04-16
Application:Spectrum Products,Die,switch,Cylinder Type,office outdoor camping equipment,relay,journal lathe,linear drive,animal anatomy,Seals,labor insurance
Similar models:W 639-2Z W 639/1.5 R-2Z 316639 AG W 639-2RS1 W 639 W 639/2.5 R-2ZS W 639/3 R-2Z W 639/1.5-2Z 6391/K-6320 W 639/2-2Z
BEARING POWER International Trading Co.,Ltd. specialize in W639-2Z products，there is large inventory of SKF W 639-2Z Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 639-2Z Which SKF W639-2Z 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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7017 CD/HCP4A	85	130	22	Bearings, units and housings
7018 CE/P4AL	90	140	24	Bearings, units and housings
NJ 2210 ECJ	50	90	23	Bearings, units and housings
LR 7x10x10.5	7	10	10.5	Bearings, units and housings
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