Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71911 CD/HCP4A

71911 CD/HCP4A

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		62.7	mm
d₂		62.7	mm
D₁		72.3	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		15.6	mm

Abutment dimensions

d_a	min.	59.6	mm
d_b	min.	59.6	mm
D_a	max.	75.4	mm
D_b	max.	78	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		64.7	mm

Calculation data

Basic dynamic load rating	C	19.5	kN
Basic static load rating	C₀	14.6	kN
Fatigue load limit	P_u	0.62	kN
Attainable speed for grease lubrication		19000	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	2.49	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	70	N
Static axial stiffness, preload class A		54	N/µm
Preload class B	G_B	140	N
Static axial stiffness, preload class B		72	N/µm
Preload class C	G_C	280	N
Static axial stiffness, preload class C		99	N/µm
Preload class D	G_D	560	N
Static axial stiffness, preload class D		140	N/µm
Calculation factors
Calculation factor	f	1.15
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	10.4

Mass

Mass bearing

0.15

Model Number: 71911 CD/HCP4A
Inner Diameter：55mm Outer Diameter：80mm 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:position switch,Hydraulic Couplings,vertical sawing machine,raw material accessories,electrocardiograph,diving equipment,survey accessories,Hydraulic Rama,rolling mill roll neck and slowdown device,industrial skin care,food safety
Similar models:71911 CD/HCP4A 71911 CB/P4AL S71911 ACB/P4A S71911 ACD/HCP4A 71911 CD/P4A 71911 CE/HCP4A 71911 ACE/P4AH1 71911 ACB/P4A S71911 CE/P4A 71911 ACD/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71911CD/HCP4A products，there is large inventory of SKF 71911 CD/HCP4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71911 CD/HCP4A Which SKF 71911CD/HCP4A 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
17699	44.45	76.2	7.95	Seals
30228	140	250	45.75	Bearings, units and housings
36x50x7 HMSA10 RG	36	50	7	Seals
526192	469.9	-	-	Seals
71906 ACE/HCP4AH	30	47	9	Bearings, units and housings
HA 307	30.1625	35	35	Bearings, units and housings
N 034	27.2542	-	169.1386	Bearings, units and housings
N 800	90.8812	-	800.2016	Bearings, units and housings
NJ 2215 ECPH	75	130	31	Bearings, units and housings
SAFS 22532 x 5.1/2 T	139.7	-	-	Bearings, units and housings
SNL 3284 G	420	-	-	Bearings, units and housings
SY 1.1/2 TF	38.1	-	-	Bearings, units and housings

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Hot number： 2318 K 25x40x8 HMS5 RG 29951 38x62x10 HMS5 V 43x54x7.5 CRSA1 R 61928 MA 6317-2Z 85 VS R BT4B 334130 G/HA1VA903 BTM 130 BTN9/HCP4CDB HM 3192 NJ 2218 ECP NUP 324 ECP SAF 22517 x 2.7/8 TLC SY 1. LDW