Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/5 R-2Z

W 638/5 R-2Z

Dimensions

d		5	mm
D		11	mm
B		5	mm
d₂	≈	6.2	mm
D₂	≈	9.9	mm
D₃		12.5	mm
C		1	mm
r_1,2	min.	0.15	mm

Abutment dimensions

d_a	min.	5.9	mm
d_a	max.	6.1	mm
r_a	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	0.403	kN
Basic static load rating	C₀	0.143	kN
Fatigue load limit	P_u	0.006	kN
Reference speed		120000	r/min
Limiting speed		60000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.1

Mass

Mass bearing

0.002

Model Number: W 638/5 R-2Z
Inner Diameter：5mm Outer Diameter：11mm Width：5mm
Reference speed:60000 r/min Limiting speed:120000 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:security equipment,electrostatic protection,Optical Instruments,marine analysis and testing equipment,equipment,glass,medical equipment,experimental equipment,defogging and degreasing,Ball screw,car
Similar models:W 63800 W 638/1.5-2Z SAF 22638 x 7 TLC W 638/2.5-2Z W 638/5-2Z SAF 22638 x 7 SAF 22638 x 6.7/8 TLC SAF 22638 TLC W 638 SAF 22638 x 7 T
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Model No.	Inner Diameter	Outer Diameter	Width	Type
14x28x7 HMS5 RG	14	28	7	Seals
16900	42.8752	69.85	7.95	Seals
22x62x6 HMS5 RG	22	62	6	Seals
315606	380	540	-	Bearings, units and housings
33772	85.725	117.5	11.13	Seals
71917 CE/P4AH1	85	120	18	Bearings, units and housings
71952 ACD/HCP4A	260	360	46	Bearings, units and housings
7217 ACD/P4A	85	150	28	Bearings, units and housings
75x110x12 HMS5 RG	75	110	12	Seals
NJ 2310 ECPH	50	110	40	Bearings, units and housings
SYFWK 507 L	-	-	-	Bearings, units and housings
W 605 R	5	14	5	Bearings, units and housings

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