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

S71906 CB/HCP4A

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		12.2	mm

Abutment dimensions

d_a	min.	32	mm
d_a	max.	35.4	mm
d_b	min.	32	mm
d_b	max.	34.5	mm
D_a	max.	45	mm
D_b	max.	46.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	6.37	kN
Basic static load rating	C₀	5.2	kN
Fatigue load limit	P_u	0.134	kN
Attainable speed for grease lubrication		48000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	22
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	16	N
Static axial stiffness, preload class A		23	N/µm
Preload class B	G_B	32	N
Static axial stiffness, preload class B		30	N/µm
Preload class C	G_C	96	N
Static axial stiffness, preload class C		48	N/µm
Calculation factors
Calculation factor	f	1.07
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	f₀	9.5

Mass

Mass bearing

0.047

Model Number: S71906 CB/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：2026-04-16
Application:Power equipment,gear grinding machine,mathematical instruments,Broadcasting System,education model Instruments,glass processing machine,small diesel generators,electric pump,marine analysis,Industry,food sterilization
Similar models:71906 CE/HCP4AH 71906 ACD/P4A S71906 ACD/HCP4A 71906 CE/HCP4A S71906 ACB/P4A 71906 ACE/P4A S71906 CB/P4A 71906 CE/P4AL 71906 CE/P4AH 71906 CD/P4A
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NA 4876	380	480	100	Bearings, units and housings
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W 61705 R	25	32	4	Bearings, units and housings

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