Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71906 ACD/HCP4A

S71906 ACD/HCP4A

Dimensions

d		30	mm
D		47	mm
B		9	mm
d₁		35.6	mm
d₂		35.6	mm
D₂		44.15	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		13.6	mm

Abutment dimensions

d_a	min.	32	mm
d_a	max.	35.1	mm
d_b	min.	32	mm
d_b	max.	35.1	mm
D_a	max.	45	mm
D_b	max.	45.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	6.76	kN
Basic static load rating	C₀	4.3	kN
Fatigue load limit	P_u	0.183	kN
Attainable speed for grease lubrication		32000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	20
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	40	N
Static axial stiffness, preload class A		72	N/µm
Preload class B	G_B	80	N
Static axial stiffness, preload class B		93	N/µm
Preload class C	G_C	160	N
Static axial stiffness, preload class C		121	N/µm
Preload class D	G_D	320	N
Static axial stiffness, preload class D		161	N/µm
Calculation factors
Calculation factor	f	1.08
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.17
Calculation factor	f_HC	1.04
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

0.044

Model Number: S71906 ACD/HCP4A
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:rolling mill roll neck and slowdown device,packing equipment,animal,natural instruments,Die,plastic molding,industrial equipment,wall industry,heating fans,noise inspection,climb ladder
Similar models:71906 ACD/P4A 71906 CE/HCP4A S71906 CE/P4A 71906 CE/P4AL S71906 CE/HCP4A 71906 ACB/HCP4A 71906 CE/HCP4AH 71906 CE/P4A S71906 CD/P4A S71906 CB/HCP4A
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Model No. Inner Diameter Outer Diameter Width Type

249/1120 CAK30F/W33
560x600x18 HDS2 R
KR 62 B
OKF 670
QJ 304 N2PHAS

Purchase the SKF S71906 ACD/HCP4A Please fill in the following

Hot number： 113740 150x180x15 HMS5 RG 16004/HR22Q2 17340 BD-23218 CCK/W33-H 2318 26x38x7 HMS5 RG 29368 32209/DF 45x60x10 HMS5 RG 6200/HR11QN K 81218 TN PCM 060810 E PCM 606560 M SIKAC 12 M/VZ019 W 61811-2RS1

Model No.	Inner Diameter	Outer Diameter	Width	Type
249/1120 CAK30F/W33
560x600x18 HDS2 R
KR 62 B
OKF 670
QJ 304 N2PHAS