Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71911 CB/HCP4A

S71911 CB/HCP4A

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		63.94	mm
d₂		62.7	mm
D₂		73.2	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		18.8	mm

Abutment dimensions

d_a	min.	59.6	mm
d_a	max.	63.3	mm
d_b	min.	59.6	mm
d_b	max.	62.1	mm
D_a	max.	75.4	mm
D_b	max.	78	mm
r_a	max.	1	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	13.5	kN
Basic static load rating	C₀	13.7	kN
Fatigue load limit	P_u	0.345	kN
Attainable speed for grease lubrication		28000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	28
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	33	N
Static axial stiffness, preload class A		38	N/µm
Preload class B	G_B	66	N
Static axial stiffness, preload class B		50	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		80	N/µm
Calculation factors
Calculation factor	f	1.09
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	9.8

Mass

Mass bearing

0.18

Model Number: S71911 CB/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：2025-12-09
Application:rock drilling machinery,motorcycle,training beds etc,Vacuum generator,Antenna Industry,Film machine,Roller mill,powder metallurgy,lifting chain,dynamic blood pressure,casting embedding
Similar models:71911 ACE/HCP4A 71911 ACB/P4A 71911 ACB/HCP4AL S71911 CE/P4A 71911 CE/P4A S71911 ACD/P4A S71911 CB/P4A 71911 CE/P4AH1 71911 CE/HCP4A 71911 ACE/HCP4AH1
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NU 217 ECP	85	150	28	Bearings, units and housings
SAF 22530 TLC	131.7625	-	-	Bearings, units and housings
SALKAC 16 M	16	-	21	Bearings, units and housings
TUWK 1.3/8 LTHR	34.925	-	-	Bearings, units and housings
SHT 38	38	-	-	Coupling systems
SILA 50 ESX-2LS	50	-	35	Bearings, units and housings
SNL 3044 TURT	200	-	-	Bearings, units and housings

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Hot number： 23152 29891 314792 A 331657 38x52x7 HMSA10 V 60x105x8 CRW1 R 71918 ACE/HCP4A FY 17 TF GE 70 TXG3A-2LS KM 11 NJ 2213 ECP PCM 202310 E SAF 1312 TLC SALA 80 ESX-2LS SY 1.15/16 DUTF