Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/5-2Z

W 638/5-2Z

Dimensions

d		5	mm
D		11	mm
B		5	mm
d₂	≈	6.2	mm
D₂	≈	9.9	mm
r_1,2	min.	0.15	mm

Abutment dimensions

d_a	min.	5.9	mm
d_a	max.	6.1	mm
D_a	max.	10	mm
r_a	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	0.403	kN
Basic static load rating	C₀	0.143	kN
Fatigue load limit	P_u	0.006	kN
Reference speed		120000	r/min
Limiting speed		60000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.1

Mass

Mass bearing

0.0018

Model Number: W 638/5-2Z
Inner Diameter：5mm Outer Diameter：11mm Width：5mm
Reference speed:60000 r/min Limiting speed:120000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-07-30
Application:Hairbrush device,Hydraulic Equipment,turret industry,surgical instruments,Spectrum Products,journal lathe,Solenoid Valves,Tool,Cylinder Special,Infrared Technology,Machine tools
Similar models:W 638-2RS1 W 63800-2RS1 W 63801-2RS1 W 63806-2RZ W 638/4-2RZ W 638/2 R-2Z W 63804-2RS1 W 63802-2Z W 638-2RZ W 63805
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Model No. Inner Diameter Outer Diameter Width Type

29492 EM
30309
BD-C 3168 KM-AOH 3168 G
GE 70 ES-2LS
GEP 260 FS

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Hot number： 105x160x12 CRW1 R 13614 14846 150x180x12 HMS5 V 37330 400081 52206 65x85x8 CRW1 V 71920 ACE/HCP4A 81138 M FSAF 1520 x 3.1/2 T K 25x29x10 SONL 234-534 W 61818-2RS1 W 6209-2RS1

Model No.	Inner Diameter	Outer Diameter	Width	Type
29492 EM
30309
BD-C 3168 KM-AOH 3168 G
GE 70 ES-2LS
GEP 260 FS