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：2024-12-14
Application:Display Devices,Cylinder Type,Digital Generator,Seals,squeeze machine etc,motor,Equipment,Spectrum Products,industrial equipment,Broadcasting System,medical treatment
Similar models:W 638/4 R-2Z W 63805-2Z W 63806-2RS1 W 638/8-2Z W 638/1 W 63805 W 63806-2Z SAF 22638 x 7 T W 63804-2RZ SAF 22638 TLC
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Model No.	Inner Diameter	Outer Diameter	Width	Type
18558	47.625	63.55	6.35	Seals
292/530 EM	530	710	109	Bearings, units and housings
30x45x8 HMS5 V	30	45	8	Seals
5500	14.3002	19.05	2.39	Seals
6409 NR	45	120	29	Bearings, units and housings
7008 ACE/HCP4A	40	68	15	Bearings, units and housings
7013 ACE/P4A	65	100	18	Bearings, units and housings
91300	-	-	63.5	Seals
BC4B 319446	571.627	870	-	Bearings, units and housings
FYR 1 11/16	42.8625	-	-	Bearings, units and housings
NU 217 ECML	85	150	28	Bearings, units and housings
W 617/6 R	6	10	2.5	Bearings, units and housings

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Hot number： 23226-2CS5/VT143 400301 40x68x8 HMS5 RG 7000 ACD/P4A 730 VRME R 87525 9646 GS 81234 HE 311 B HK 1214.2RS NJ 2211 ECPH OKC 780 OKF 160 SY 2.15/16 TF/VA228 SYE 2