Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 639/3-2RS1

W 639/3-2RS1

Dimensions

d		3	mm
D		8	mm
B		4	mm
d₁	≈	4.35	mm
D₂	≈	7.25	mm
r_1,2	min.	0.15	mm

Abutment dimensions

d_a	min.	3.9	mm
d_a	max.	4.3	mm
D_a	max.	7.3	mm
r_a	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	0.319	kN
Basic static load rating	C₀	0.09	kN
Fatigue load limit	P_u	0.004	kN
Reference speed		0	r/min
Limiting speed		43000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	6.1

Mass

Mass bearing

0.00082

Model Number: W 639/3-2RS1
Inner Diameter：3mm Outer Diameter：8mm Width：4mm
Reference speed:43000 r/min Limiting speed:0 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-06-24
Application:Seals,decoration machinery,air shower etc,oral medical device,paint paint,Machine tool accessories,Industrial,medical treatment,Switch,spreader series,medical equipment
Similar models:316639 AG W 639/3 R-2Z W 639/3-2RS1 W 639/1.5-2Z 6391/K-6320 W 639/2 R-2Z W 639/2.5-2ZS W 639/1.5 R-2Z W 639/3 R-2RS1 W 639/3-2Z
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Model No. Inner Diameter Outer Diameter Width Type

231/710 CA/W33
7014 CB/HCP4A
99475
SIKAC 20 M
W 61914-2RS1

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Model No.	Inner Diameter	Outer Diameter	Width	Type
231/710 CA/W33
7014 CB/HCP4A
99475
SIKAC 20 M
W 61914-2RS1