Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 637/4 X

W 637/4 X

Dimensions

d		4	mm
D		10	mm
B		3	mm
d₁	≈	5.9	mm
D₁	≈	8.2	mm
r_1,2	min.	0.2	mm

Abutment dimensions

d_a	min.	5.6	mm
d_a	max.	5.8	mm
D_a	max.	8.4	mm
r_a	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	0.553	kN
Basic static load rating	C₀	0.245	kN
Fatigue load limit	P_u	0.011	kN
Reference speed		130000	r/min
Limiting speed		80000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	12.3

Mass

Mass bearing

0.001

Model Number: W 637/4 X
Inner Diameter：4mm Outer Diameter：10mm Width：3mm
Reference speed:80000 r/min Limiting speed:130000 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:Industrial Electromechanical,Laser Devices,Vacuum generator,EEG,Animal Tracking,wheel lathe,other accessories,sleep monitoring,Textile Accessories,tooth filling,surgical instruments
Similar models:BC2B 326372/HA1 W 637/4 XR W 637/8 R-2ZS W 637/2-2Z PWM 556370 W 637/5 XR-2Z W 637/8 XR W 637/4 XR-2Z W 637/8 R-2Z W 637
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Model No.	Inner Diameter	Outer Diameter	Width	Type
13661	34.925	53.98	7.95	Seals
150 VA V	135	-	-	Seals
19017	48.4124	69.9	9.53	Seals
22647	57.15	101.68	11.13	Seals
34892	88.9	114.33	11.13	Seals
6203 NR	17	40	12	Bearings, units and housings
7473	19.05	32	6.35	Seals
9855	25.4	38.07	6.35	Seals
FYNT 80 F	80	-	-	Bearings, units and housings
JL 26749/710	32	53	14.5	Bearings, units and housings
S71901 ACD/P4A	12	24	6	Bearings, units and housings
SYNT 55 FTS	55	-	-	Bearings, units and housings

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