Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF D/W R2-5

D/W R2-5

Dimensions

d		3.175	mm
D		7.938	mm
B		2.779	mm
d₁	≈	4.35	mm
D₁	≈	6.65	mm
r_1,2	min.	0.1	mm

Abutment dimensions

d_a	min.	4	mm
d_a	max.	4.3	mm
D_a	max.	7.1	mm
r_a	max.	0.1	mm

Calculation data

Basic dynamic load rating	C	0.319	kN
Basic static load rating	C₀	0.09	kN
Fatigue load limit	P_u	0.004	kN
Reference speed		150000	r/min
Limiting speed		95000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	6.1

Mass

Mass bearing

0.0005

Model Number: D/W R2-5
Inner Diameter：3.175mm Outer Diameter：7.938mm Width：2.779mm
Reference speed:95000 r/min Limiting speed:150000 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:woodworking machinery,suction nozzle,textile machinery,Food testing,sample cup,Other Machine Tools,economic mold,Vertical machining,test strip,Microwave Equipment,pump accessories
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Model No.	Inner Diameter	Outer Diameter	Width	Type
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330803 A	730.25	1035.05	-	Bearings, units and housings
35 VS R	31	-	-	Seals
7256 BM	280	500	80	Bearings, units and housings
FSAF 1516 TLC	68.2625	-	-	Bearings, units and housings
MS 31/630	-	-	50	Bearings, units and housings
NNCL 4840 CV	200	250	50	Bearings, units and housings
NNU 4980 BK/SPW33	400	540	140	Bearings, units and housings
PBMF 121812 M1	12	18	12	Bearings, units and housings
PCM 404420 M	40	44	20	Bearings, units and housings
PCM 707570 E	70	75	70	Bearings, units and housings

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