Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71813 ACD/HCP4

71813 ACD/HCP4

Dimensions

d		65	mm
D		85	mm
B		10	mm
d₁		71.7	mm
d₂		71.7	mm
D₁		78.5	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		22.5	mm

Abutment dimensions

d_a	min.	68.2	mm
d_b	min.	68.2	mm
D_a	max.	81.8	mm
D_b	max.	83	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm
d_n		72.4	mm

Calculation data

Basic dynamic load rating	C	12.7	kN
Basic static load rating	C₀	14	kN
Fatigue load limit	P_u	0.585	kN
Attainable speed for grease lubrication		16000	r/min
Attainable speed for oil-air lubrication		24000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	29
Reference grease quantity	G_ref	1.3	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	115	N
Static axial stiffness, preload class A		160	N/µm
Preload class B	G_B	345	N
Static axial stiffness, preload class B		252	N/µm
Preload class C	G_C	690	N
Static axial stiffness, preload class C		347	N/µm
Calculation factors
Calculation factor	f	1.28
Calculation factor	f₁	0.97
Calculation factor	f_2A	1
Calculation factor	f_2B	1.09
Calculation factor	f_2C	1.17
Calculation factor	f_HC	1.02
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

0.11

Model Number: 71813 ACD/HCP4
Inner Diameter：65mm Outer Diameter：85mm Width：10mm
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：2026-08-24
Application:test equipment,industry test,Beauty and Body,decoration machinery,DC generators,bag machine,lathe,rehabilitation training equipment,cleaners,animal anatomy,Insect Count
Similar models:71813 ACD/HCP4 71813 CD/HCP4 71813 CD/P4 71813 ACD/P4
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Model No. Inner Diameter Outer Diameter Width Type

BT2B 331854/HA1
GEH 90 ESX-2LS
SAF 1216 TLC
SAW 23538 x 6.13/16 TLC
SYJ 65 TF

Purchase the SKF 71813 ACD/HCP4 Please fill in the following

Hot number： 1150550 32056 X/DF 4991 544091/544118 591/1060 JR 6 VS R 71905 CE/HCP4A BC2B 320055 A GEM 20 ES-2LS HK 3018 RS K 80x86x20 NN 3048 K/SPW33 NU 1068 MA NUKR 47 A SAF 22532 x 5.1/2

Model No.	Inner Diameter	Outer Diameter	Width	Type
BT2B 331854/HA1
GEH 90 ESX-2LS
SAF 1216 TLC
SAW 23538 x 6.13/16 TLC
SYJ 65 TF