Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 637/4 XR

W 637/4 XR

Dimensions

d		4	mm
D		10	mm
B		3	mm
d₁	≈	5.9	mm
D₁	≈	8.2	mm
D₃		11.2	mm
C		0.6	mm
r_1,2	min.	0.2	mm

Abutment dimensions

d_a	min.	5.6	mm
d_a	max.	5.8	mm
r_a	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	0.553	kN
Basic static load rating	C₀	0.245	kN
Fatigue load limit	P_u	0.011	kN
Reference speed		130000	r/min
Limiting speed		80000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	12.3

Mass

Mass bearing

0.0011

Model Number: W 637/4 XR
Inner Diameter：4mm Outer Diameter：10mm Width：3mm
Reference speed:80000 r/min Limiting speed:130000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-07-29
Application:cleaners,beverage production,static control,plastic molding,lifting tackle,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,glass processing machine,enzyme,municipal machinery,medical Equipment,rock drilling machinery
Similar models:BC2B 326372/HA1 W 637/8-2ZS W 637/8 X W 637/5 XR-2ZS W 637/8-2Z W 637/4 XR W 637-2Z W 637/3-2Z W 637/2-2Z W 637/4 X
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Model No. Inner Diameter Outer Diameter Width Type

31825
480 VE R
71920 ACB/P4A
FSNL 526 TURU
HM 3188

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Model No.	Inner Diameter	Outer Diameter	Width	Type
31825
480 VE R
71920 ACB/P4A
FSNL 526 TURU
HM 3188