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

W 638/4-2RS1

Dimensions

d		4	mm
D		9	mm
B		4	mm
d₁	≈	5.2	mm
D₂	≈	8.1	mm
r_1,2	min.	0.1	mm

Abutment dimensions

d_a	min.	4.8	mm
d_a	max.	5.1	mm
D_a	max.	8.2	mm
r_a	max.	0.1	mm

Calculation data

Basic dynamic load rating	C	0.364	kN
Basic static load rating	C₀	0.114	kN
Fatigue load limit	P_u	0.005	kN
Reference speed		0	r/min
Limiting speed		40000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	6.5

Mass

Mass bearing

0.001

Model Number: W 638/4-2RS1
Inner Diameter：4mm Outer Diameter：9mm Width：4mm
Reference speed:40000 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：2021-06-05
Application:electric hydraulic lifting platform,Automobile,tapered grinder,Wire grinder,food / grain / food equipment,Perfusion device,food safety,Cleaning equipment,Pump,mobile toilet,intermediate
Similar models:W 638/2-2Z W 638/3-2Z SAF 22638 x 7 TLC W 63801 R W 63804 SAF 22638 x 6.7/8 T W 638/4 R-2RS1 W 63805-2RS1 W 638/5-2RS1 W 638/1.5-2Z
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Model No.	Inner Diameter	Outer Diameter	Width	Type
13739	34.925	60.3	7.95	Seals
22353	57.15	76.2	9.53	Seals
38749	98.425	139.73	12.7	Seals
7018 CE/HCP4AL1	90	140	24	Bearings, units and housings
FYR 3	76.2	-	-	Bearings, units and housings
GS 81218	90	135	10.5	Bearings, units and housings
N 1013 KTNHA/SP	65	100	18	Bearings, units and housings
NATR 17	17	40	21	Bearings, units and housings
PBM 071210 M1	7	12	10	Bearings, units and housings
S71912 ACB/HCP4A	60	85	13	Bearings, units and housings
SAFS 22517-11 x 2.7/8	73.025	-	-	Bearings, units and housings
YAR 208-108-2FW/VA228	38.1	80	49.2	Bearings, units and housings

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Hot number： BD-23220 CCK/W33-AHX 3220 319155 35x62x7 HMS5 V 42x72x8 HMS5 V 411002 51288 F 60/670 N1MAS 6318-RS1 7024 CD/P4AH1 71910 CE/HCP4A AH 24038 H 2318 HJ 1064 QJ 1256 N2MA SAFS 22520-11 x 3.5/16 TLC