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

W 638/8 R-2Z

Dimensions

d		8	mm
D		16	mm
B		6	mm
d₂	≈	9.65	mm
D₂	≈	14.2	mm
D₃		18	mm
C		1.3	mm
r_1,2	min.	0.2	mm

Abutment dimensions

d_a	min.	9.5	mm
d_a	max.	9.6	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

0.0051

Model Number: W 638/8 R-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：2026-06-24
Application:office equipment,injection molding machine,Technical Equipment,Cleaning equipment,magnetic elements,surgical instruments,Broadcasting System,Anesthetic Equipment,Digital Generator,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,molding machine
Similar models:W 63800-2Z W 638/5-2RZ W 638/3 R-2RS1 W 638/5-2Z W 63801 R 638/4-2Z SAF 22638 x 6.7/8 TLC W 63803-2RZ SAF 22638 TLC W 63804-2RS1
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Model No. Inner Diameter Outer Diameter Width Type

48x72x10 HMSA10 RG
90x115x12 CRWA1 R
NU 3084 ECMA
PSM 254535 A51
W 63800-2RZ

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

Hot number： 1000130 100x125x12 HMSA10 V BD-21315 EK-AH 315 G 30x50x7 HMS5 V 33026 6026-Z 6215-2Z/VA208 7305 BEGBY 99620 BT4B 334056 B/HA1 KMK 19 N 326 ECM RNAO 40x50x34 SNL 3060 ATURT SNW 44x7.13/16

Model No.	Inner Diameter	Outer Diameter	Width	Type
48x72x10 HMSA10 RG
90x115x12 CRWA1 R
NU 3084 ECMA
PSM 254535 A51
W 63800-2RZ