Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 61903 R-2Z

W 61903 R-2Z

Dimensions

d		17	mm
D		30	mm
B		7	mm
d₁	≈	21	mm
D₂	≈	27.8	mm
D₃		32.5	mm
C		1.5	mm
r_1,2	min.	0.3	mm

Abutment dimensions

d_a	min.	19	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		24000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	14.8

Mass

Mass bearing

0.019

Model Number: W 61903 R-2Z
Inner Diameter：17mm Outer Diameter：30mm Width：7mm
Reference speed:24000 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：2026-04-17
Application:hydraulic pump,Spectrum Products,hinge industry,baler,mobile toilet,power tools,vertical pull,generator,lathe,Laser Devices,machine tool spindle
Similar models:W 61903-2Z W 61903-2RS1 61903 61903-2RZ W 61903 R-2Z W 61903-2RZ W 61903 61903-2Z 61903-2RS1 W 61903 R
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Hot number： 13419 BD-231/630 CAK/W33-OH 31/630 H 2310 K + H 2310 30308T72/DB 312844 32315/DF 50x80x8 HMSA10 V 7313 BEGBP BD-C 3038 K-H 3038 K 81111 TN NU 10/500 MA OKCX 560 PSM 354125 A51 S7214 CD/HCP4A W 6002-2Z