Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71906 ACB/P4A

71906 ACB/P4A

Dimensions

d		30	mm
D		47	mm
B		9	mm
d₁		35.95	mm
d₂		35.1	mm
D₂		43	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		16.5	mm

Abutment dimensions

d_a	min.	32	mm
d_b	min.	32	mm
D_a	max.	45	mm
D_b	max.	46.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		36.6	mm

Calculation data

Basic dynamic load rating	C	6.05	kN
Basic static load rating	C₀	4.9	kN
Fatigue load limit	P_u	0.127	kN
Attainable speed for grease lubrication		36000	r/min
Attainable speed for oil-air lubrication		56000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	22
Reference grease quantity	G_ref	0.72	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	27	N
Static axial stiffness, preload class A		53	N/µm
Preload class B	G_B	54	N
Static axial stiffness, preload class B		68	N/µm
Preload class C	G_C	160	N
Static axial stiffness, preload class C		102	N/µm
Calculation factors
Calculation factor	f	1.07
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
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

0.047

Model Number: 71906 ACB/P4A
Inner Diameter：30mm Outer Diameter：47mm Width：9mm
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：2026-06-25
Application:chemical instruments,Laser Measurements,auto tools,Laser Devices,injection molding machine,Optical Instruments,powder metallurgy,Anesthetic Equipment,Security Equipment,Other machinery,boring bar boring bar
Similar models:S71906 CE/HCP4A S71906 CE/P4A 71906 ACE/HCP4A 71906 ACE/P4AL S71906 ACB/HCP4A 71906 ACE/HCP4AH 71906 CB/P4A 71906 CE/HCP4A 71906 CD/P4A S71906 CB/HCP4A
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Model No. Inner Diameter Outer Diameter Width Type

BD-22322 EK-AHX 2322 G
7016 CE/HCP4AH1
71915 ACB/HCP4AL
GEH 40 ES-2LS
NK 110/30

Purchase the SKF 71906 ACB/P4A Please fill in the following

Hot number： 108x130x13 CRSH1 R 19234 BD-22228-2CS5K/VT143-H 3128 L 32210/DF 55x75x8 HMSA10 V 7012 ACB/HCP4A 71913 CD/P4A FYJ 1.1/2 TF NNU 4921 B/SPW33 QJ 304 MA SAF 1522 T SAF 23032 KATLC x 5.1/2 SAKAC 10 M W 61900-2RS1 YAR 205-100-2RF/HV

Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-22322 EK-AHX 2322 G
7016 CE/HCP4AH1
71915 ACB/HCP4AL
GEH 40 ES-2LS
NK 110/30