Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71911 CB/P4A

S71911 CB/P4A

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		22000	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		34	N/µm
Preload class B	G_B	66	N
Static axial stiffness, preload class B		45	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		73	N/µm
Calculation factors
Calculation factor	f	1.09
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
Calculation factor	f₀	9.8

Mass

Mass bearing

0.19

Model Number: S71911 CB/P4A
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:static control,Surveying Surveying Instruments,agriculture,gantry processing,Hair styling device,ship special,rubber products machinery and equipment,air purification,mechanical and electrical,chamfer,hook
Similar models:S71911 CD/P4A 71911 ACE/HCP4AH1 S71911 CE/P4A S71911 CD/HCP4A 71911 CE/P4AL 71911 ACD/P4A 71911 CE/HCP4A 71911 CE/P4AH1 71911 CB/P4AL 71911 ACD/HCP4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-22216 EK-AH 316	75	140	33	Bearings, units and housings
307101 C	1000	1320	103	Bearings, units and housings
331081 A	501.65	711.2	-	Bearings, units and housings
619/560 MA	560	750	85	Bearings, units and housings
71915 CD/P4AH1	75	105	16	Bearings, units and housings
BC2B 319943	635	762	101.6	Bearings, units and housings
GEZ 412 ESX-2LS	120.65	187.325	90.475	Bearings, units and housings
H 3028	125	140	82	Bearings, units and housings
NKX 50 Z	50	62	35	Bearings, units and housings
PSMF 152025 A51	15	20	25	Bearings, units and housings
S7017 ACB/P4A	85	130	22	Bearings, units and housings
SD 25x32x4	25	32	4	Seals

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