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

W 61903-2Z

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		24000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	14.8

Mass

Mass bearing

0.017

Model Number: W 61903-2Z
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：2025-12-09
Application:large agricultural machinery,Cylinder Standard,agrochemical,other rubber,education model Instruments,Technical Equipment,Pneumatic Actuator,hydraulic control element,metering pump,Solenoid Valves,Display Devices
Similar models:61903-2Z W 61903 W 61903-2Z W 61903 R W 61903 R-2Z 61903-2RS1 61903 W 61903-2RS1 61903-2RZ W 61903-2RZ
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Model No.	Inner Diameter	Outer Diameter	Width	Type
20x40x7 CRW1 R	20	40	7	Seals
27576	69.85	104.78	11.13	Seals
30307	35	80	22.75	Bearings, units and housings
403403	333	-	-	Seals
407252	670	-	-	Seals
6305/HR22Q2	25	62	17	Bearings, units and housings
6309/HR11TN	45	100	25	Bearings, units and housings
7624	19.05	41.25	6.35	Seals
FSAF 1520 x 3.5/16 T	84.1375	-	-	Bearings, units and housings
FSYE 3 7/16-3	87.3125	-	-	Bearings, units and housings
QJ 1072 N2MA	360	540	82	Bearings, units and housings
W 61908-2RZ	40	62	12	Bearings, units and housings

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