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

W 638

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		40000	r/min
Calculation factor	k_r	0.035
Calculation factor	f₀	12.4

Mass

Mass bearing

0.027

Model Number: W 638
Inner Diameter：8mm Outer Diameter：28mm Width：9mm
Reference speed:40000 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：2021-06-03
Application:Logistics Equipment,surgical instruments,quality inspection equipment,Optical Instruments,defogging and degreasing,vertical sawing machine,Forklift industry,ventilation equipment,hydraulic cylinder buffer,training beds etc,DC generators
Similar models:W 63800 W 63802-2RZ W 63802-2Z SAF 22638 TLC W 638/8-2Z W 63803 W 638/3-2RS1 W 63805-2Z W 63806-2Z W 638/4 X-2RZ
BEARING POWER International Trading Co.,Ltd. specialize in W638 products，there is large inventory of SKF W 638 Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638 Which SKF W638 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
14887	38.1	53.98	7.95	Seals
24120 CCK30/W33	100	165	65	Bearings, units and housings
26x38x7 HMS1 R	26	38	7	Seals
410x450x20 HDS2 R	410	450	20	Seals
524217	755.65	-	-	Seals
7512	19.05	34.93	6.35	Seals
71918 ACD/HCP4A	90	125	18	Bearings, units and housings
99227	57.15	64.2874	11.1252	Seals
K 26x30x17	26	30	17	Bearings, units and housings
NNC 4916 CV	80	110	30	Bearings, units and housings
SI 20 C	20	-	16	Bearings, units and housings
SIL 50 ES-2RS	50	-	35	Bearings, units and housings

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