Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/1

W 638/1

Dimensions

d		1	mm
D		3	mm
B		1.5	mm
d₁	≈	1.55	mm
D₁	≈	2.46	mm
r_1,2	min.	0.05	mm

Abutment dimensions

d_a	min.	1.4	mm
d_a	max.	1.5	mm
D_a	max.	2.6	mm
r_a	max.	0.05	mm

Calculation data

Basic dynamic load rating	C	0.052	kN
Basic static load rating	C₀	0.012	kN
Fatigue load limit	P_u	0.001	kN
Reference speed		240000	r/min
Limiting speed		150000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	5.6

Mass

Mass bearing

0.00004

Model Number: W 638/1
Inner Diameter：1mm Outer Diameter：3mm Width：1.5mm
Reference speed:150000 r/min Limiting speed:240000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-06-24
Application:Small air generators,Roller,comprehensive experiment,tobacco machinery,gear type,electrocardiograph,test laboratory equipment and accessories,Other Measurements,steam Hydraulic control element,machining,enzyme
Similar models:W 638/4-2RS1 W 638/2 X-2Z W 63804 R W 63806 R-2Z W 638/4 R-2RS1 W 638/4 X-2RS1 W 63805 R W 63804-2Z W 638/4 X-2Z W 63801
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Model No. Inner Diameter Outer Diameter Width Type

19832
71906 ACB/P4A
71920 ACE/P4AL
PWKRE 52.2RS
SAF 23052 KA x 9.7/16

Purchase the SKF W 638/1 Please fill in the following

Hot number： 12340 19596 BD-23156 CCK/W33-OH 3156 H 24030 CCK30/W33 51103 V/HR22Q2 7324 BGBM DMB 32/36 HK 4518 RS K 35x40x27 TN NJ 2214 ECM SAF 1311 T SAFS 22518 x 3.1/16 SNW 109x1.3/8 W 63803-2RZ W 63804-2RZ

Model No.	Inner Diameter	Outer Diameter	Width	Type
19832
71906 ACB/P4A
71920 ACE/P4AL
PWKRE 52.2RS
SAF 23052 KA x 9.7/16