Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 639/2.5-2ZS

W 639/2.5-2ZS

Dimensions

d		2.5	mm
D		7	mm
B		3.5	mm
d₁	≈	3.85	mm
D₂	≈	6.2	mm
r_1,2	min.	0.15	mm

Abutment dimensions

d_a	min.	3.7	mm
d_a	max.	3.8	mm
D_a	max.	6.2	mm
r_a	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	0.221	kN
Basic static load rating	C₀	0.067	kN
Fatigue load limit	P_u	0.003	kN
Reference speed		160000	r/min
Limiting speed		80000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	6.6

Mass

Mass bearing

0.00061

Model Number: W 639/2.5-2ZS
Inner Diameter：2.5mm Outer Diameter：7mm Width：3.5mm
Reference speed:80000 r/min Limiting speed:160000 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:Laser Measurements,turret industry,generator,plastic rolling,casting embedding,Industrial,gas turbine,chamfering machine etc,metallurgical mold,electrocardiograph,Broadcasting System
Similar models:W 639/2 R-2Z W 639/3 R-2Z 6391/K-6320 W 639/2.5-2ZS W 639/1.5 R-2Z W 639-2RS1 316639 AG W 639-2RZ W 639 W 639/3-2Z
BEARING POWER International Trading Co.,Ltd. specialize in W639/2.5-2ZS products，there is large inventory of SKF W 639/2.5-2ZS Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 639/2.5-2ZS Which SKF W639/2.5-2ZS 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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32948T114/DB	240	320	-	Bearings, units and housings
401306	117	-	-	Seals
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71921 ACD/HCP4AH1	105	145	20	Bearings, units and housings
780 VE R	751	-	-	Seals
GEM 50 ESX-2LS	50	75	28	Bearings, units and housings
HM 3052	34	-	260	Bearings, units and housings
K 89426 M	130	270		Bearings, units and housings
OKCX 260	260		-
PSM 182212 A51	18	22	12	Bearings, units and housings
SNW 126x4.7/16	112.7125	171.577	126.2888	Bearings, units and housings
W 04	20.3454	38.8874	-	Bearings, units and housings

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Hot number： 23710 280x320x20 CRWA1 R 30238T136/DB 38x72x10 HMS5 RG 48693 628-Z 7306 BEGBP 7007 ACE/P4A DMB 12/16 H 2308 E KRV 22 B PCM 11011560 M PRM 455040 S7022 CD/HCP4A W 61808-2RS1