Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/3-2RS1

W 638/3-2RS1

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		0	r/min
Limiting speed		45000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.1

Mass

Mass bearing

0.00041

Model Number: W 638/3-2RS1
Inner Diameter：3mm Outer Diameter：7mm Width：3mm
Reference speed:45000 r/min Limiting speed:0 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-06-25
Application:sterilizers,forklift industry,sheet industry,motorcycle,molding machine,welding equipment,SPA equipment,universal category,coal,Performance test,extruder
Similar models:SAF 22638 TLC W 638-2RS1 638-2RZ W 63800-2RZ W 638/4-2RS1 W 63804-2Z W 63801 R W 63802-2Z W 63806-2Z W 63802 R-2Z
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Model No. Inner Diameter Outer Diameter Width Type

32x55x10 HMS5 V
3310 DMA
375 VE R
NA 4903.2RS
SI 10 E

Purchase the SKF W 638/3-2RS1 Please fill in the following

Hot number： 11175 17359 1750 VL V 24914 51106 V/HR22T2 51276 F 52492 6001 7307 BECBM 7019 ACE/P4AH1 AOH 31/630 HE 316 NJ 315 ECJ NU 2322 ECP SAF 23032 KAT x 5.3/8

Model No.	Inner Diameter	Outer Diameter	Width	Type
32x55x10 HMS5 V
3310 DMA
375 VE R
NA 4903.2RS
SI 10 E