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

61903-2Z

Dimensions

d		17	mm
D		30	mm
B		7	mm
d₁	≈	20.4	mm
D₂	≈	27.7	mm
r_1,2	min.	0.3	mm

Abutment dimensions

d_a	min.	19	mm
d_a	max.	20.3	mm
D_a	max.	28	mm
r_a	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	4.62	kN
Basic static load rating	C₀	2.55	kN
Fatigue load limit	P_u	0.108	kN
Reference speed		50000	r/min
Limiting speed		26000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	14.7

Mass

Mass bearing

0.017

Model Number: 61903-2Z
Inner Diameter：17mm Outer Diameter：30mm Width：7mm
Reference speed:26000 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：2026-07-24
Application:economic mold,Material handling equipment,Gripper Swing,die casting mold,marine analysis and testing equipment,light therapy instrument,plastic blow molding,X-ray Equipment,extruder,pneumatic,power tools
Similar models:W 61903-2RZ W 61903 61903-2Z W 61903-2Z W 61903 R-2Z 61903 W 61903 R 61903-2RZ W 61903-2RS1 61903-2RS1
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Model No. Inner Diameter Outer Diameter Width Type

1100 VL R
120x140x12 CRWA1 R
13415
61848
HE 3024

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Hot number： 23124 CC/W33 BD-239/950 CAK/W33-OH 39/950 H 241/950 ECAF/W33 39590/39528 52x70x8 CRW1 R 62x75x10 CRS1 R BSD 3572 C NJ 316 ECP NU 234 ECML SAF 22609 T SAF 1516 TLC SAFS 22528 x 4.13/16 T SY 40 TF/VA201 W 6207-2RZ WS 89324

Model No.	Inner Diameter	Outer Diameter	Width	Type
1100 VL R
120x140x12 CRWA1 R
13415
61848
HE 3024