Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71911 CB/P4A

71911 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_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		64.8	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
Attainable speed for oil-air lubrication		34000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	28
Reference grease quantity	G_ref	2.58	cm³
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

0.18

Model Number: 71911 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:Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,Hydraulic Couplings,relay,Industrial,Other Machine Tools,generator,machine lathe,bathroom facilities,CNC,wall materials,Equipment
Similar models:S71911 CE/P4A 71911 ACE/HCP4A S71911 ACB/P4A 71911 CD/P4A S71911 CE/HCP4A S71911 CD/HCP4A 71911 CE/HCP4A 71911 ACB/P4A S71911 CD/P4A 71911 ACE/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71911CB/P4A products，there is large inventory of SKF 71911 CB/P4A 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 CB/P4A Which SKF 71911CB/P4A 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
22561	57.15	85.62	11.13	Seals
618/750 MA	750	920	78	Bearings, units and housings
7018 CB/P4A	90	140	24	Bearings, units and housings
70x90x10 CRW1 V	70	90	10	Seals
7202 BECBP	15	35	11	Bearings, units and housings
BD-C 3176 KMB-OH 3176 HE	360	620	194	Bearings, units and housings
FYTJ 25 TF	25	-	-	Bearings, units and housings
K 16x20x17	16	20	17	Bearings, units and housings
KMK 10	15	-	50	Bearings, units and housings
NCF 18/900 V/HB1	900	1090	85	Bearings, units and housings
OKTC 425	-	635	-
PRM 606550	60	65	50	Bearings, units and housings

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Hot number： 24989 24192 ECAK30/W33 594241 6020 N 7020 CE/P4AH1 71807 CD/P4 7315 BECBP BT4B 332827 AG/HA1 FY 55 FM NCF 3015 CV OH 3280 H PFT 35 TF RNA 4900.2RS SNW 36x6.1/2 YEL 209-2F