Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 708 CE/P4A

708 CE/P4A

Dimensions

d		8	mm
D		22	mm
B		7	mm
d₁		12.1	mm
d₂		11.5	mm
D₁		17.9	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		5.6	mm

Abutment dimensions

d_a	min.	10	mm
d_b	min.	10	mm
D_a	max.	20	mm
D_b	max.	20.6	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		13.3	mm

Calculation data

Basic dynamic load rating	C	2.34	kN
Basic static load rating	C₀	0.8	kN
Fatigue load limit	P_u	0.034	kN
Attainable speed for grease lubrication		109000	r/min
Attainable speed for oil-air lubrication		165000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	8
Reference grease quantity	G_ref	0.17	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	15	N
Static axial stiffness, preload class A		10	N/µm
Preload class B	G_B	35	N
Static axial stiffness, preload class B		14	N/µm
Preload class C	G_C	75	N
Static axial stiffness, preload class C		20	N/µm
Calculation factors
Calculation factor	f	1.02
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.05
Calculation factor	f_HC	1
Calculation factor	f₀	6.6

Mass

Mass bearing

0.012

Model Number: 708 CE/P4A
Inner Diameter：8mm Outer Diameter：22mm Width：7mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Angular contact ball bearings Angular contact ball bearings, super-precision
Details： Angular contact ball bearings, super-precision
Update date：2025-12-09
Application:Grinding and polishing equipment,electronic components,textile machinery,crimping tools,hydraulic pressure gauge,Hydraulic Press,Security Equipment,small diesel generators,position switch,fabric products,Industrial
Similar models:7084 AM PSMF 708560 A51 PBM 708590 M1G1 708/600 AMB 708/1250 AMB 708 ACD/HCP4AH PSM 708590 A51 7080 AM BT1B 617089 B WBB1-8708 R-2RS1
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