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

W 61903 R

Dimensions

d		17	mm
D		30	mm
B		7	mm
d₁	≈	21	mm
D₁	≈	26.8	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		32000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	14.8

Mass

Mass bearing

0.018

Model Number: W 61903 R
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：2026-04-18
Application:,food sterilization,noise inspection,electric hydraulic lifting platform,roller lathe,car instrument,molding machine,equipment,security equipment,animal,pneumatic Pump
Similar models:61903-2Z 61903 W 61903-2RZ W 61903 W 61903 R-2Z 61903-2RZ 61903-2RS1 W 61903-2Z W 61903 R W 61903-2RS1
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108x170x15 HMS5 RG	108	170	15	Seals
1210 EKTN9 + H 210	45	90	20	Bearings, units and housings
22441	57.15	82.58	9.53	Seals
619/7-2Z	7	17	5	Bearings, units and housings
7202 ACCBM	15	35	11	Bearings, units and housings
6313-2ZNR	65	140	33	Bearings, units and housings
7016 ACD/HCP4A	80	125	22	Bearings, units and housings
7320 BEP	100	215	47	Bearings, units and housings
81234 M	170	240	55	Bearings, units and housings
82x160x15 HMSA10 RG	82	160	15	Seals
BT4B 328510/HA1	620	800	-	Bearings, units and housings
W 624-2Z	4	13	5	Bearings, units and housings

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