Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/4 X-2RS1

W 638/4 X-2RS1

Dimensions

d		4	mm
D		10	mm
B		4	mm
d₁	≈	5.9	mm
D₂	≈	8.8	mm
r_1,2	min.	0.2	mm

Abutment dimensions

d_a	min.	5.6	mm
d_a	max.	5.8	mm
D_a	max.	8.8	mm
r_a	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	0.553	kN
Basic static load rating	C₀	0.245	kN
Fatigue load limit	P_u	0.011	kN
Reference speed		0	r/min
Limiting speed		36000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	12.3

Mass

Mass bearing

0.0013

Model Number: W 638/4 X-2RS1
Inner Diameter：4mm Outer Diameter：10mm Width：4mm
Reference speed:36000 r/min Limiting speed:0 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-04-16
Application:screen filter,Surveying Surveying Instruments,Industrial,Pneumatic Control Elements,hydraulic control element,root canal filling,hydraulic pressure gauge,cleaning agent,orthodontic material,Rolling mill gear box,Warehouse Shelf Equipment
Similar models:W 638/5-2RZ W 63802-2RS1 W 638/2-2Z W 638/4 X-2Z W 638/3 R-2RS1 W 63800 W 638/9-2Z W 63803-2RS1 W 638 W 63803 R-2Z
BEARING POWER International Trading Co.,Ltd. specialize in W638/4X-2RS1 products，there is large inventory of SKF W 638/4 X-2RS1 Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/4 X-2RS1 Which SKF W638/4X-2RS1 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
6215 NR	75	130	25	Bearings, units and housings
6304-RSL	20	52	15	Bearings, units and housings
7344 BCBM	220	460	88	Bearings, units and housings
FYTBK 25 LF	25	-	-	Bearings, units and housings
H 3024 E	110	120	72	Bearings, units and housings
HJ 1088	440	512	45	Bearings, units and housings
KR 72 B	-	72	80	Bearings, units and housings
NCF 18/530 V	530	650	56	Bearings, units and housings
NK 17/20	17	25	20	Bearings, units and housings
NNCL 4830 CV	150	190	40	Bearings, units and housings
OKCS 214	214		-
SAF 23032 KAT x 5.3/8	139.7	-	-	Bearings, units and housings

Purchase the SKF W 638/4 X-2RS1 Please fill in the following

Hot number： 330x370x18 HDS2 V 609-2RSL 6000 6305-Z 6322 M/C3VL0241 7308 BECBJ 90239 91357 FY 2.1/4 TF K 81103 TN N 1009 KTNHA/HC5SP NNU 41/500 K30M/W33 PCZ 1010 E SAFS 22234 T W 619/9 R-2RS1