Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 637/8 R-2Z

W 637/8 R-2Z

Dimensions

d		8	mm
D		12	mm
B		3.5	mm
d₁	≈	9	mm
D₂	≈	11.31	mm
D₃		13.6	mm
C		0.8	mm
r_1,2	min.	0.1	mm

Abutment dimensions

d_a	min.	8.6	mm
d_a	max.	8.9	mm
r_a	max.	0.1	mm

Calculation data

Basic dynamic load rating	C	0.312	kN
Basic static load rating	C₀	0.14	kN
Fatigue load limit	P_u	0.006	kN
Reference speed		100000	r/min
Limiting speed		53000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	8.2

Mass

Mass bearing

0.0012

Model Number: W 637/8 R-2Z
Inner Diameter：8mm Outer Diameter：12mm Width：3.5mm
Reference speed:53000 r/min Limiting speed:100000 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:gas turbine,internal combustion engine,Film machine,medical equipment,Vacuum generator,Special Equipment,Spectrum Products,Infrared Technology,electromagnetic clutch,ventilation fans,generator
Similar models:W 637/8 R-2ZS W 637/2-2Z W 637-2RZ W 637/4 XR W 637 W 637/8-2ZS W 637/4 X W 637/9 R-2Z W 637/8 XR W 637/8 X
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