Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71913 ACE/P4AH1

71913 ACE/P4AH1

Dimensions

d		65	mm
D		90	mm
B		13	mm
d₁		72.75	mm
d₂		70.7	mm
D₁		82.32	mm
K		0.5	mm
C₁		3.83	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		25.8	mm

Abutment dimensions

d_a	min.	69.6	mm
d_b	min.	67	mm
D_a	max.	85.4	mm
D_b	max.	88	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		74.5	mm

Calculation data

Basic dynamic load rating	C	15.6	kN
Basic static load rating	C₀	11.8	kN
Fatigue load limit	P_u	0.5	kN
Attainable speed for grease lubrication		18000	r/min
Attainable speed for oil-air lubrication		28000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	24
Reference grease quantity	G_ref	2.6	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	142	N
Static axial stiffness, preload class A		120	N/µm
Preload class B	G_B	425	N
Static axial stiffness, preload class B		181	N/µm
Preload class C	G_C	850	N
Static axial stiffness, preload class C		238	N/µm
Calculation factors
Calculation factor	f	1.19
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.07
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

0.2

Model Number: 71913 ACE/P4AH1
Inner Diameter：65mm Outer Diameter：90mm Width：13mm
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：2026-08-24
Application:Rolling mill gear box,reinforced machinery,Cutting Machine,medical equipment,Medical printer,metallurgical mold,casting embedding,Digital Generator,power tools,leather processing,test strip
Similar models:S71913 ACB/P4A S71913 ACE/P4A 71913 CB/HCP4A 71913 ACD/HCP4AL 71913 ACD/HCP4A 71913 ACB/HCP4AL S71913 ACE/HCP4A 71913 CE/HCP4AL S71913 CB/P4A 71913 ACE/P4AL
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Model No. Inner Diameter Outer Diameter Width Type

591978
591/630 F
GEC 670 TXA-2RS
NU 2315 ECML
SAF 23034 KA x 5.15/16

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Hot number： 21163 25x42x7 HMS5 RG 29296 524220 BT4B 328952 A/HA1 FSAF 22617 x 2.13/16 T FSYE 3 15/16-3 GE 40 ESL-2LS GEZ 312 ES-2LS N 05 PSM 405060 A51 SAF 22510 x 1.3/4 SAF 22632 x 5.3/8 SYJ 65 KF TU 25 FM

Model No.	Inner Diameter	Outer Diameter	Width	Type
591978
591/630 F
GEC 670 TXA-2RS
NU 2315 ECML
SAF 23034 KA x 5.15/16