Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 61903

W 61903

Dimensions

d		17	mm
D		30	mm
B		7	mm
d₁	≈	21	mm
D₂	≈	27.8	mm
r_1,2	min.	0.3	mm

Abutment dimensions

d_a	min.	19	mm
d_a	max.	20.5	mm
D_a	max.	28.5	mm
r_a	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	3.97	kN
Basic static load rating	C₀	2.55	kN
Fatigue load limit	P_u	0.108	kN
Reference speed		50000	r/min
Limiting speed		32000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	14.8

Mass

Mass bearing

0.015

Model Number: W 61903
Inner Diameter：17mm Outer Diameter：30mm Width：7mm
Reference speed:32000 r/min Limiting speed:50000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2025-12-09
Application:switch,industrial fans,Gear grinding machine,electronic components,Spectrum Products,Polymer,Surveying Surveying Instruments,EEG,small diesel generators,walking Food processing machinery and equipment,transistor fittings
Similar models:61903-2RZ W 61903 R 61903-2RS1 W 61903-2RS1 W 61903-2Z W 61903 61903-2Z W 61903-2RZ 61903 W 61903 R-2Z
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