Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 709 ACE/P4A

709 ACE/P4A

Dimensions

d		9	mm
D		24	mm
B		7	mm
d₁		13.6	mm
d₂		13	mm
D₁		19.4	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		7.4	mm

Abutment dimensions

d_a	min.	11	mm
d_b	min.	11	mm
D_a	max.	22	mm
D_b	max.	22.6	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		14.8	mm

Calculation data

Basic dynamic load rating	C	2.51	kN
Basic static load rating	C₀	0.9	kN
Fatigue load limit	P_u	0.038	kN
Attainable speed for grease lubrication		90000	r/min
Attainable speed for oil-air lubrication		137000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	9
Reference grease quantity	G_ref	0.19	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	23	N
Static axial stiffness, preload class A		26	N/µm
Preload class B	G_B	65	N
Static axial stiffness, preload class B		38	N/µm
Preload class C	G_C	130	N
Static axial stiffness, preload class C		50	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

0.014

Model Number: 709 ACE/P4A
Inner Diameter：9mm Outer Diameter：24mm 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：2026-07-31
Application:product accessories,sheet industry,rubber products machinery and equipment,test laboratory equipment and accessories,Insect Capture,circulating pump,chamfering machine etc,centrifugal pump,Chromatography Products,Processing machinery,Generator
Similar models:709 CD/P4AH 709 ACD/P4AH HK 0709 7092 BM PCMF 151709 E 709 ACD/P4A 709 ACD/HCP4A 709 CD/P4A PRM 323709.8 PCM 070910 E
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Model No. Inner Diameter Outer Diameter Width Type

28x38x8 HMS5 RG
320/22 X
NCF 3024 CV
NUTR 30 A
PWM 202420

Purchase the SKF 709 ACE/P4A Please fill in the following

Hot number： 1250 VA R 1600 VL V 18582 BD-231/630 CAK/W33-OH 31/630 H 31313 6203 NR HE 2309 HJ 2317 EC K 12x18x12 TN NK 7/12 TN NUP 2304 ECP NUP 240 ECM PCM 758060 E S71908 ACE/HCP4A W 61916

Model No.	Inner Diameter	Outer Diameter	Width	Type
28x38x8 HMS5 RG
320/22 X
NCF 3024 CV
NUTR 30 A
PWM 202420