Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638-2RZ

W 638-2RZ

Dimensions

d		8	mm
D		28	mm
B		9	mm
d₂	≈	13.9	mm
D₂	≈	22.38	mm
r_1,2	min.	0.3	mm

Abutment dimensions

d_a	min.	10	mm
d_a	max.	13.8	mm
D_a	max.	26	mm
r_a	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	3.97	kN
Basic static load rating	C₀	1.96	kN
Fatigue load limit	P_u	0.083	kN
Reference speed		67000	r/min
Limiting speed		32000	r/min
Calculation factor	k_r	0.035
Calculation factor	f₀	12.4

Mass

Mass bearing

0.028

Model Number: W 638-2RZ
Inner Diameter：8mm Outer Diameter：28mm Width：9mm
Reference speed:32000 r/min Limiting speed:67000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2021-06-07
Application:medical Equipment,Performance test,non-ferrous metal alloy,Individual Wire,Storage Tool,food testing,Gear grinding machine,Forming mold,Optical Instruments,other rubber,reducer
Similar models:W 63804 W 63802 R W 638/2-2Z W 638/1 W 63806-2RZ W 638/8-2Z W 63804-2RZ W 63805-2RZ W 63800-2Z W 638/5 R-2RS1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
140x160x12 HMS5 RG	140	160	12	Seals
25x50x10 HMS5 V	25	50	10	Seals
40x50x8 HMSA10 V	40	50	8	Seals
400354	31	-	-	Seals
51228	140	200	46	Bearings, units and housings
95 VS V	85	-	-	Seals
FYC 512	-	-	-	Bearings, units and housings
HK 2214 RS	22	28	14	Bearings, units and housings
NKIS 50	50	80	28	Bearings, units and housings
PCM 303420 E	30	34	20	Bearings, units and housings
SSAFS 23048 KA x 8.15/16	227.0125	-	-	Bearings, units and housings
SY 1.3/8 WDW	34.925	-	-	Bearings, units and housings

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