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

708 ACE/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		7.1	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	2.29	kN
Basic static load rating	C₀	0.765	kN
Fatigue load limit	P_u	0.032	kN
Attainable speed for grease lubrication		98000	r/min
Attainable speed for oil-air lubrication		150000	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	20	N
Static axial stiffness, preload class A		23	N/µm
Preload class B	G_B	60	N
Static axial stiffness, preload class B		34	N/µm
Preload class C	G_C	120	N
Static axial stiffness, preload class C		45	N/µm
Calculation factors
Calculation factor	f	1.02
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.06
Calculation factor	f_HC	1
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.012

Model Number: 708 ACE/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：2021-06-03
Application:Cylinder Micro,power protection,equipment,Insect Capture,chamfering machine etc,small diesel generators,pneumatic,non-motor vehicle Electric car,teaching equipment,X-ray Equipment,internal combustion engine
Similar models:708 CE/P4A PBM 7085120 M1G1 WBB1-8708-2RZ 708 CD/HCP4A PWM 708070 708 CD/HCP4AH PCZ 0708 E 7088 AM WBB1-8708 R-2Z 708 ACE/HCP4AH
BEARING POWER International Trading Co.,Ltd. specialize in 708ACE/P4A products，there is large inventory of SKF 708 ACE/P4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 708 ACE/P4A Which SKF 708ACE/P4A is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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