Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/8-2Z

W 638/8-2Z

Dimensions

d		8	mm
D		16	mm
B		6	mm
d₂	≈	9.65	mm
D₂	≈	14.2	mm
r_1,2	min.	0.2	mm

Abutment dimensions

d_a	min.	9.5	mm
d_a	max.	9.6	mm
D_a	max.	14.4	mm
r_a	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	0.715	kN
Basic static load rating	C₀	0.3	kN
Fatigue load limit	P_u	0.012	kN
Reference speed		90000	r/min
Limiting speed		45000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.5

Mass

Mass bearing

0.0046

Model Number: W 638/8-2Z
Inner Diameter：8mm Outer Diameter：16mm Width：6mm
Reference speed:45000 r/min Limiting speed:90000 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:Machine tool accessories,plant determination,circulating pump,Medium and large motor,motor,industrial fans,Industrial Adhesive,Reflective Materials Industrial fabrics,medical equipment,wall industry,chromatography
Similar models:W 63800 R W 63804 R W 638 W 63802 R-2Z W 63800-2Z SAF 22638 x 6.13/16 W 638/8 R-2Z W 63803 R W 63804 R-2Z SAF 22638
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Model No. Inner Diameter Outer Diameter Width Type

45x62x8 HMSA10 RG
71815 ACD/HCP4
8704
RNA 6918
SIA 40 ES-2RS

Purchase the SKF W 638/8-2Z Please fill in the following

Hot number： 145x175x15 HMS5 RG 17607 40x65x10 HMSA10 V 526809 60x85x10 HMSA10 RG 71936 CD/HCP4A FYJ 55 TF FYK 25 LD GEH 60 ESX-2LS NK 38/20 OKBS 74 PCM 303440 M RNAO 30x42x32 SYNT 100 FTF W 606 R

Model No.	Inner Diameter	Outer Diameter	Width	Type
45x62x8 HMSA10 RG
71815 ACD/HCP4
8704
RNA 6918
SIA 40 ES-2RS