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

W 638/5 R-2Z

Dimensions

d		5	mm
D		11	mm
B		5	mm
d₂	≈	6.2	mm
D₂	≈	9.9	mm
D₃		12.5	mm
C		1	mm
r_1,2	min.	0.15	mm

Abutment dimensions

d_a	min.	5.9	mm
d_a	max.	6.1	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

0.002

Model Number: W 638/5 R-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：2026-04-17
Application:power tools,Body shaping,diving equipment,industrial skin care,Security Equipment,Cylinder Special,small diesel generators,Special Equipment,Power equipment,mathematical instruments,Performance test
Similar models:W 63801-2Z W 638/5-2RZ W 63804 W 638/4 X-2Z W 638/2 X-2Z W 63805 W 63806-2RZ SAF 22638 x 6.13/16 TLC W 63805 R W 63800 R
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Hot number： BD-23134-2CS5K/VT143-H 3134 E 248/1800 CAFA/W20 47487/47420 A 5 VS R 61816 7000 CE/P4AH 978x1018x18 HS5 R FSAF 23024 KAT x 4.3/16 FYT 20 TF/VA201 NATR 12 PPA NU 2306 ECML NUP 318 ECM SAF 22622 T SYK 30 LD W 608 R-2RS1