Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71912 ACE/P4A

71912 ACE/P4A

Dimensions

d		60	mm
D		85	mm
B		13	mm
d₁		67.75	mm
d₂		65.7	mm
D₁		77.3	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		24.6	mm

Abutment dimensions

d_a	min.	64.6	mm
d_b	min.	62	mm
D_a	max.	80.4	mm
D_b	max.	83	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		69.6	mm

Calculation data

Basic dynamic load rating	C	15.3	kN
Basic static load rating	C₀	11.2	kN
Fatigue load limit	P_u	0.475	kN
Attainable speed for grease lubrication		19500	r/min
Attainable speed for oil-air lubrication		30000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	23
Reference grease quantity	G_ref	2.5	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	139	N
Static axial stiffness, preload class A		115	N/µm
Preload class B	G_B	418	N
Static axial stiffness, preload class B		173	N/µm
Preload class C	G_C	836	N
Static axial stiffness, preload class C		228	N/µm
Calculation factors
Calculation factor	f	1.13
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

0.19

Model Number: 71912 ACE/P4A
Inner Diameter：60mm Outer Diameter：85mm 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：2026-04-16
Application:surgical instruments,baler,other CNC,Pneumatic Actuator,plastic molding,Perfusion device,storage shelves,Control,food safety,non-ferrous metal alloy,electric hydraulic lifting platform
Similar models:71912 ACD/HCP4A S71912 ACD/P4A 71912 CB/P4A 71912 ACE/HCP4AL 71912 ACE/P4AH1 S71912 CB/P4A 71912 ACB/HCP4A 71912 ACB/P4A 71912 ACD/HCP4AL S71912 ACB/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71912ACE/P4A products，there is large inventory of SKF 71912 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 71912 ACE/P4A Which SKF 71912ACE/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
50x72x8 HMS5 V	50	72	8	Seals
71940 ACD/HCP4A	200	280	38	Bearings, units and housings
82540	209.55	255.5748	-	Seals
920 VRME R	880	-	-	Seals
ECY 206	-	-	-	Bearings, units and housings
FSAF 22312	60	-	-	Bearings, units and housings
PL 800	-	-	56.3626	Bearings, units and housings
RNU 205	32	52	15	Bearings, units and housings
SAF 1620 x 3.1/2	88.9	-	-	Bearings, units and housings
SAFS 22515-11	61.9125	-	-	Bearings, units and housings
SAFS 22520	87.3125	-	-	Bearings, units and housings
W 61909 R	45	68	12	Bearings, units and housings

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