Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF D/W R4 R-2Z

D/W R4 R-2Z

Dimensions

d		6.35	mm
D		15.875	mm
B		4.978	mm
d₂	≈	8.4	mm
D₂	≈	13.8	mm
D₃		17.526	mm
C		1.067	mm
r_1,2	min.	0.3	mm

Abutment dimensions

d_a	min.	8	mm
d_a	max.	8.3	mm
r_a	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	0.852	kN
Basic static load rating	C₀	0.315	kN
Fatigue load limit	P_u	0.014	kN
Reference speed		95000	r/min
Limiting speed		48000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.1

Mass

Mass bearing

0.0046

Model Number: D/W R4 R-2Z
Inner Diameter：6.35mm Outer Diameter：15.875mm Width：4.978mm
Reference speed:48000 r/min Limiting speed:95000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-06-24
Application:marine analysis,Display Devices,thread processing machine,position switch,gantry processing,disposable,animal,medical equipment,Machine Tool Accessories,E Beauty,medical equipment
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Model No. Inner Diameter Outer Diameter Width Type

280x310x16 HS8 R
6317/HC5C3
BTM 130 ATN9/HCP4CDB
LS 1024
SSAFS 23028 KATLC x 4.15/16

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Hot number： 100 VS V 1219 7024 ACE/HCP4A 99139 FYTB 35 TF HA 3032 KML 24 LR 25x30x16.5 MVR1-85 NJ 307 ECML SAFS 22524 x 4.1/4 SAW 23534 x 5.7/8 SNL 3036 TURA SNW 130x5.1/8 YAR 211-200-2F

Model No.	Inner Diameter	Outer Diameter	Width	Type
280x310x16 HS8 R
6317/HC5C3
BTM 130 ATN9/HCP4CDB
LS 1024
SSAFS 23028 KATLC x 4.15/16