Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/9-2Z

W 638/9-2Z

Dimensions

d		9	mm
D		17	mm
B		6	mm
d₂	≈	10.7	mm
D₂	≈	15.2	mm
r_1,2	min.	0.2	mm

Abutment dimensions

d_a	min.	10.3	mm
d_a	max.	10.6	mm
D_a	max.	15.4	mm
r_a	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	0.761	kN
Basic static load rating	C₀	0.335	kN
Fatigue load limit	P_u	0.014	kN
Reference speed		85000	r/min
Limiting speed		43000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.7

Mass

Mass bearing

0.005

Model Number: W 638/9-2Z
Inner Diameter：9mm Outer Diameter：17mm Width：6mm
Reference speed:43000 r/min Limiting speed:85000 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:walking Food processing machinery and equipment,drawing die,transportation equipment,mobile toilet,key lock,Industrial Adhesive,Cutting Machine,roller lathe,position switch,agricultural testing and analysis equipment and related,defogging and degreasing
Similar models:W 63800 SAF 22638 x 7 T W 638/2 XR-2Z W 638/5 R-2RS1 W 638-2RZ W 63803 R W 638/9-2Z W 63801-2RZ W 638/5-2RS1 638/5-2Z
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Model No. Inner Diameter Outer Diameter Width Type

22348 CCKJA/W33VA405
FY 25 LF
GEH 20 TXE-2LS
GEZH 304 ESX-2LS
PCMW 223801.5 E

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Hot number： 12337 210 NR 24030 CC/W33 32x44x7 HMSA10 V 400 VL V 4010 51426 M 6211/HR22Q2 71915 ACB/HCP4AL 7320 BEM C 3052 NUB 248 MA PSMF 121820 A51 QJ 1296 N2MA YAT 216-300

Model No.	Inner Diameter	Outer Diameter	Width	Type
22348 CCKJA/W33VA405
FY 25 LF
GEH 20 TXE-2LS
GEZH 304 ESX-2LS
PCMW 223801.5 E