Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/3-2Z

W 638/3-2Z

Dimensions

d		3	mm
D		7	mm
B		3	mm
d₂	≈	3.85	mm
D₂	≈	6.35	mm
r_1,2	min.	0.1	mm

Abutment dimensions

d_a	min.	3.7	mm
d_a	max.	3.8	mm
D_a	max.	6.5	mm
r_a	max.	0.1	mm

Calculation data

Basic dynamic load rating	C	0.178	kN
Basic static load rating	C₀	0.057	kN
Fatigue load limit	P_u	0.002	kN
Reference speed		160000	r/min
Limiting speed		80000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.1

Mass

Mass bearing

0.00041

Model Number: W 638/3-2Z
Inner Diameter：3mm Outer Diameter：7mm Width：3mm
Reference speed:80000 r/min Limiting speed:160000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2025-12-09
Application:laser devices,stirrer,cleaners,Pneumatic Control Valves,Sensors,disposable,Cylinder Type,printing equipment,Infrared Technology,transportation equipment,woodworking machinery
Similar models:W 63805 R W 638 W 638/4 XR-2RS1 W 638/1.5-2Z W 63805 R-2Z W 63802 R-2Z W 638-2RS1 W 638/1 SAF 22638 x 7 TLC SAF 22638
BEARING POWER International Trading Co.,Ltd. specialize in W638/3-2Z products，there is large inventory of SKF W 638/3-2Z Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/3-2Z Which SKF W638/3-2Z is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
1220 VE R	1157	-	-	Seals
BD-241/670 ECAK30/W33-AOH 241/670	630	1090	412	Bearings, units and housings
305-ZNR	25	62	17	Bearings, units and housings
361205 R	25	62	15	Bearings, units and housings
4309 ATN9	45	100	36	Bearings, units and housings
FYRP 3 7/16-18	87.3125	-	-	Bearings, units and housings
NJ 2207 ECP	35	72	23	Bearings, units and housings
SAF 1507 x 1.1/8 T	28.575	-	-	Bearings, units and housings
SAF 23036 KAT x 6.1/2	165.1	-	-	Bearings, units and housings
SNL 3138 ATURT	170	-	-	Bearings, units and housings
Z 210	50	-	6	Seals
TUJ 505	-	-	-	Bearings, units and housings

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Hot number： 12530 15886 218 NR BD-22248 CCK/W33-OH 3148 H 23646 3306 ATN9 6007-2Z 6306-2Z FY 15/16 TF HA 3034 E NUP 2214 ECP SAFS 23028 KA x 4.7/8 SILQG 125 ES SNW 13x2.5/16 TUWK 1.15/16 LTA