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：2025-12-09
Application:horizontal processing,Laser Measurements,non-ferrous metal alloy,printing machinery,lifting tackle,clean stationery,ship special,tire industry,Hairbrush device,motor,multi-knife lathe
Similar models:S71911 ACE/P4A 71911 ACD/P4A 71911 CB/P4A 71911 CE/P4AH1 71911 ACE/P4AL 71911 CE/P4AL S71911 CB/HCP4A 71911 ACB/HCP4A 71911 CD/P4AL 71911 ACD/HCP4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
240x270x15 HMS5 V	240	270	15	Seals
26x42x7 HMS5 V	26	42	7	Seals
2900564	736.6	787.4	22.23	Seals
45x60x8 HMSA10 V	45	60	8	Seals
6205 NR	25	52	15	Bearings, units and housings
6228 MA	140	250	42	Bearings, units and housings
627-2RSLTN9/HC5C3WTF1	7	22	7	Bearings, units and housings
718/600 AMB	600	730	60	Bearings, units and housings
71916 ACD/P4AH1	80	110	16	Bearings, units and housings
NCF 1856 V	280	350	33	Bearings, units and housings
NJ 2216 ECP	80	140	33	Bearings, units and housings
NU 12/560 MA	560	1030	206	Bearings, units and housings

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Hot number： 14x28x7 HMSA10 V 16083 22328 CCKJA/W33VA405 22348 CCKJA/W33VA405 24172 ECCJ/W33 33011/DF 53408 + U 408 GX 80 F M 336949/912 NKIA 59/22 NKX 10 ZTN OH 39/1060 H OH 3956 H SAF 22630 T S7017 ACD/HCP4A