Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/1

W 638/1

Dimensions

d		1	mm
D		3	mm
B		1.5	mm
d₁	≈	1.55	mm
D₁	≈	2.46	mm
r_1,2	min.	0.05	mm

Abutment dimensions

d_a	min.	1.4	mm
d_a	max.	1.5	mm
D_a	max.	2.6	mm
r_a	max.	0.05	mm

Calculation data

Basic dynamic load rating	C	0.052	kN
Basic static load rating	C₀	0.012	kN
Fatigue load limit	P_u	0.001	kN
Reference speed		240000	r/min
Limiting speed		150000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	5.6

Mass

Mass bearing

0.00004

Model Number: W 638/1
Inner Diameter：1mm Outer Diameter：3mm Width：1.5mm
Reference speed:150000 r/min Limiting speed:240000 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:air shower etc,ECG,welding equipment,special broaching machine,ventilation fans,walking Food processing machinery and equipment,enzyme,flexible processing,mathematical instruments,test laboratory equipment and accessories,SPA equipment
Similar models:W 63800-2Z W 63800-2RZ W 63800-2RS1 W 638/4 X-2RZ W 63802-2RZ W 638/3-2Z 638/4-2Z W 638/3 R-2RS1 W 638/5-2RS1 W 63805-2Z
BEARING POWER International Trading Co.,Ltd. specialize in W638/1 products，there is large inventory of SKF W 638/1 Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/1 Which SKF W638/1 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
15x32x7 HMS5 RG	15	32	7	Seals
400070	6	-	-	Seals
404153	405	-	-	Seals
GRA 3036	180	245	74	Bearings, units and housings
FSAF 22617 x 2.7/8	73.025	-	-	Bearings, units and housings
G 40x47x4	40	47	4	Seals
HM 3096	60	-	480	Bearings, units and housings
NATR 17	17	40	21	Bearings, units and housings
NUH 2330 ECMH	150	320	108	Bearings, units and housings
SAFS 22515-11 x 2.3/8	60.325	-	-	Bearings, units and housings
SNL 3188 G	440	-	-	Bearings, units and housings
W 619/8	8	19	6	Bearings, units and housings

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