Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71910 CD/HCP4A

S71910 CD/HCP4A

Dimensions

d		50	mm
D		72	mm
B		12	mm
d₁		57.1	mm
d₂		57.1	mm
D₂		67.12	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		14.2	mm

Abutment dimensions

d_a	min.	53.2	mm
d_a	max.	56.6	mm
d_b	min.	53.2	mm
d_b	max.	56.6	mm
D_a	max.	68.8	mm
D_b	max.	70.6	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	13.5	kN
Basic static load rating	C₀	10.4	kN
Fatigue load limit	P_u	0.44	kN
Attainable speed for grease lubrication		22000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	25
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	50	N
Static axial stiffness, preload class A		47	N/µm
Preload class B	G_B	100	N
Static axial stiffness, preload class B		63	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		87	N/µm
Preload class D	G_D	400	N
Static axial stiffness, preload class D		122	N/µm
Calculation factors
Calculation factor	f	1.13
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.18
Calculation factor	f_HC	1.04
Calculation factor	f₀	10.7

Mass

Mass bearing

0.12

Model Number: S71910 CD/HCP4A
Inner Diameter：50mm Outer Diameter：72mm Width：12mm
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：2026-04-18
Application:food / grain / food equipment,clean stationery,insect experimental analysis instrument,packaging machinery,other accessories,switch,tire industry,Doppler,Machine Tool Accessories,Machine tool accessories,machine lathe
Similar models:S71910 ACB/HCP4A 71910 CB/P4A S71910 ACD/HCP4A 71910 ACB/P4A 71910 CE/P4A 71910 CE/P4AL 71910 ACB/HCP4AL 71910 ACD/P4A S71910 CE/HCP4A 71910 CB/P4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-23156 CCK/W33-OH 3156 H	260	460	146	Bearings, units and housings
400380	34	-	-	Seals
6240 M	200	360	58	Bearings, units and housings
7010 ACE/HCP4AH1	50	80	16	Bearings, units and housings
71922 ACD/P4A	110	150	20	Bearings, units and housings
9853	25.4	38.35	5.56	Seals
OKC 240	240		-
NCF 1844 V	220	270	24	Bearings, units and housings
NUP 315 ECP	75	160	37	Bearings, units and housings
OH 31/560 H	530	560	377	Bearings, units and housings
PCM 404430 E	40	44	30	Bearings, units and housings
SNL 3152 TURT	240	-	-	Bearings, units and housings

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Hot number： 15699 18879 20004 32307 B 32311 32x50x8 CRW1 V 38.5x58x7 HMS5 V 7008 CD/HCP4AH 71914 ACD/HCP4AL K 89424 M PBM 284035 M1G1 NU 228 ECM/C3VL2071 SAF 22624 x 4.1/4 TLC SAF 22630 x 5.1/8 T SSAFS 22544 T