Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71911 ACE/HCP4A

71911 ACE/HCP4A

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		62.75	mm
d₂		60.7	mm
D₁		72.3	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		23.5	mm

Abutment dimensions

d_a	min.	59.6	mm
d_b	min.	57	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		64.6	mm

Calculation data

Basic dynamic load rating	C	14.6	kN
Basic static load rating	C₀	10.2	kN
Fatigue load limit	P_u	0.43	kN
Attainable speed for grease lubrication		25000	r/min
Attainable speed for oil-air lubrication		39000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	21
Reference grease quantity	G_ref	2.3	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	133	N
Static axial stiffness, preload class A		116	N/µm
Preload class B	G_B	400	N
Static axial stiffness, preload class B		178	N/µm
Preload class C	G_C	800	N
Static axial stiffness, preload class C		233	N/µm
Calculation factors
Calculation factor	f	1.16
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.14

Model Number: 71911 ACE/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：2026-04-16
Application:food safety,historical instruments,screen filter,ventilation heating equipment,E Beauty,Optical Instruments,Rolling mill gear box,Body shaping,lifting tackle,electrostatic protection,Flame Cutting
Similar models:S71911 CD/P4A 71911 CD/P4AL 71911 ACE/P4A 71911 ACD/HCP4AL 71911 ACB/P4A 71911 ACB/HCP4A 71911 ACE/P4AH1 S71911 ACE/P4A S71911 CE/HCP4A 71911 CB/P4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71911ACE/HCP4A products，there is large inventory of SKF 71911 ACE/HCP4A 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 ACE/HCP4A Which SKF 71911ACE/HCP4A 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.

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Hot number： 17413 240/1180 CAF/W33 412003 413000 628/9-Z 9815 D/W RW144 R-2Z FSAF 22516 x 2.3/4 IR 17x20x16.5 PRM 606560 PSM 303840 A51 SAFS 22517-11 x 2.7/8 TLC SSAFS 22215 SY 2.3/16 DUTF W 6204-2RS1/VP311