Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF WBB1-8704

WBB1-8704

Dimensions

d		3	mm
D		9	mm
B		2.5	mm
d₁	≈	4.86	mm
D₁	≈	7.2	mm
r_1,2	min.	0.2	mm

Abutment dimensions

d_a	min.	3.8	mm
d_a	max.	3.8	mm
D_a	max.	7.4	mm
r_a	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	0.325	kN
Basic static load rating	C₀	0.095	kN
Fatigue load limit	P_u	0.004	kN
Reference speed		140000	r/min
Limiting speed		90000	r/min
Calculation factor	k_r	0.03
Calculation factor	f₀	6.4

Mass

Mass bearing

0.0007

Model Number: WBB1-8704
Inner Diameter：3mm Outer Diameter：9mm Width：2.5mm
Reference speed:90000 r/min Limiting speed:140000 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:engineering machine,Laser Devices,medical equipment,equipment and,Polymer,plastic rolling,Die,E Beauty,hook,Handling machinery and various industrial machinery,food add
Similar models:WBB1-8704 WBB1-8704 R BT4B 328704 G/HA1
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