Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71911 CD/P4AL

71911 CD/P4AL

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		62.7	mm
d₂		62.7	mm
D₁		72.3	mm
b		2.2	mm
C₁		6.5	mm
C₂		3.2	mm
C₃		2	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		16000	r/min
Attainable speed for oil-air lubrication		26000	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		49	N/µm
Preload class B	G_B	140	N
Static axial stiffness, preload class B		65	N/µm
Preload class C	G_C	280	N
Static axial stiffness, preload class C		89	N/µm
Preload class D	G_D	560	N
Static axial stiffness, preload class D		126	N/µm
Calculation factors
Calculation factor	f	1.15
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	10.4

Mass

Mass bearing

0.18

Model Number: 71911 CD/P4AL
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:hydraulic actuator,tire industry,hydraulic cylinder buffer,sewage pump,sucker industry,relay,milling head plug,Rolling mill gear box,electromyography machine,mobile toilet,Control
Similar models:S71911 ACD/P4A S71911 CE/P4A 71911 ACD/HCP4AL 71911 ACD/HCP4A 71911 CE/HCP4AL 71911 CB/P4A S71911 ACB/P4A 71911 ACB/HCP4AL S71911 CE/HCP4A 71911 CE/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71911CD/P4AL products，there is large inventory of SKF 71911 CD/P4AL 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/P4AL Which SKF 71911CD/P4AL 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
14x28x7 HMSA10 V	14	28	7	Seals
29867	76.2	95.28	9.53	Seals
35 VA V	31	-	-	Seals
71956 CD/HCP4A	280	380	46	Bearings, units and housings
87531	-	-	20	Seals
AXW 20	20	38	2	Bearings, units and housings
FSYE 3-3	76.2	-	-	Bearings, units and housings
GB 4940	-	-	105	Bearings, units and housings
K 89424 M	120	250		Bearings, units and housings
PBM 101616 M1	10	16	16	Bearings, units and housings
PFT 30 TF	30	-	-	Bearings, units and housings
SYR 4-18	101.6	-	-	Bearings, units and housings

Purchase the SKF 71911 CD/P4AL Please fill in the following

Hot number： 411502 515 VRME R 65x90x10 HMS5 V 71915 ACB/HCP4A 90951 IR 140x155x35 NJ 2322 ECMA NN 3026 TN9/SP RNA 4904 RS SAF 23056 KAT x 10.1/2 SHR 130 SIQG 20 ES SYNT 60 LTF W 61817-2Z W 63800