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

W 638/2 R-2Z

Dimensions

d		2	mm
D		5	mm
B		2.3	mm
d₁	≈	2.7	mm
D₂	≈	4.4	mm
D₃		6.1	mm
C		0.6	mm
r_1,2	min.	0.08	mm

Abutment dimensions

d_a	min.	2.5	mm
d_a	max.	2.6	mm
r_a	max.	0.08	mm

Calculation data

Basic dynamic load rating	C	0.094	kN
Basic static load rating	C₀	0.025	kN
Fatigue load limit	P_u	0.001	kN
Reference speed		200000	r/min
Limiting speed		100000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	6.5

Mass

Mass bearing

0.0002

Model Number: W 638/2 R-2Z
Inner Diameter：2mm Outer Diameter：5mm Width：2.3mm
Reference speed:100000 r/min Limiting speed:200000 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:Water Monitoring,medical equipment,Pest Monitoring,roller lathe,power tools,mechanical and electrical,paint paint,comprehensive experiment,medical equipment,Spectrum Products,pneumatic
Similar models:W 63804 W 638-2RZ SAF 22638 x 7 TLC SAF 22638 T W 63800-2RZ 638/8-2Z W 638/2.5-2Z W 638/4 R-2Z W 63802 R-2Z W 63804 R
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Model No.	Inner Diameter	Outer Diameter	Width	Type
11740	30.1752	46.43	9.53	Seals
14363	36.5252	61.9	7.95	Seals
1550162	393.7	428.63	15.88	Seals
15x26x7 HMSA10 V	15	26	7	Seals
214-Z	70	125	24	Bearings, units and housings
23268 CA/W33	340	620	224	Bearings, units and housings
30208 R	40	80	19.75	Bearings, units and housings
6214-2RS1/HC5C3WT	70	125	24	Bearings, units and housings
780 VRME R	751	-	-	Seals
812/900 M	900	1180	220	Bearings, units and housings
HE 3032	139.7	160	93	Bearings, units and housings
SAF 22530 T	131.7625	-	-	Bearings, units and housings

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Hot number： 23755 23771 241/1000 ECAF/W33 32064 X/DF 61838 6316 M/C3VL0241 90816 D/W R8 R-2RZ EE 982051/982900 FSAF 1616 x 2.3/4 GEH 30 ES-2RS PCZ 0912 E QJ 218 N2MA RMS 9 SNP 3260x11