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

61903-2RZ

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

0.018

Model Number: 61903-2RZ
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：2026-04-16
Application:instrument,blood cell reagent,gear type,pneumatic,universal category,Pneumatic Control Elements,sterilizers,Broadcasting System,sample cup,Seals,Hair styling device
Similar models:61903 61903-2RS1 W 61903-2Z W 61903 R-2Z W 61903-2RZ 61903-2RZ W 61903-2RS1 W 61903 61903-2Z W 61903 R
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140x170x12 HMS5 RG	140	170	12	Seals
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81152 M	260	320	45	Bearings, units and housings
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BD-C 2318 K-AHX 2318	85	190	64	Bearings, units and housings
GS 89310	50	95	9.5	Bearings, units and housings
NCF 3015 CV	75	115	30	Bearings, units and housings
PCZ 5640 E	88.9	93.6625	63.5	Bearings, units and housings
SAF 23034 KAT x 5.7/8	150.8125	-	-	Bearings, units and housings

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