Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71801 ACD/HCP4

71801 ACD/HCP4

Dimensions

d		12	mm
D		21	mm
B		5	mm
d₁		15.1	mm
d₂		15.1	mm
D₁		18.1	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		6.4	mm

Abutment dimensions

d_a	min.	14	mm
d_b	min.	14	mm
D_a	max.	19	mm
D_b	max.	20.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		15.4	mm

Calculation data

Basic dynamic load rating	C	1.95	kN
Basic static load rating	C₀	1.12	kN
Fatigue load limit	P_u	0.048	kN
Attainable speed for grease lubrication		75000	r/min
Attainable speed for oil-air lubrication		110000	r/min
Ball diameter	D_w	2.381	mm
Number of balls	z	14
Reference grease quantity	G_ref	0.07	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	17	N
Static axial stiffness, preload class A		38	N/µm
Preload class B	G_B	53	N
Static axial stiffness, preload class B		59	N/µm
Preload class C	G_C	105	N
Static axial stiffness, preload class C		80	N/µm
Calculation factors
Calculation factor	f	1.06
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

0.006

Model Number: 71801 ACD/HCP4
Inner Diameter：12mm Outer Diameter：21mm Width：5mm
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：2026-07-26
Application:hydraulic connector,Textile Industry Accessories and Accessories,Warehouse Shelf Equipment,medical Equipment,Grinding and polishing equipment,preservation equipment,product accessories,Cleaning equipment,Seals,printing equipment,sewage pump
Similar models:71801 CD/P4 71801 ACD/P4 71801 ACD/HCP4 71801 CD/HCP4
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Model No. Inner Diameter Outer Diameter Width Type

53216 + U 216
7010 CB/HCP4AL
719/9 CE/HCP4AH
GEZM 500 ESX-2LS
W 61802

Purchase the SKF 71801 ACD/HCP4 Please fill in the following

Hot number： 14 VA R 22x38x7 CRW1 R 32320 35x80x12 HMS5 V 37320 40x72x7 HMSA10 V 58x80x10 HMSA10 RG 7016 ACB/P4AL AXK 1528 GS 89432 NJ 318 ECML RNA 4860 S7020 CB/P4A SAF 1609 x 1.1/2 T SIA 60 ES-2RS

Model No.	Inner Diameter	Outer Diameter	Width	Type
53216 + U 216
7010 CB/HCP4AL
719/9 CE/HCP4AH
GEZM 500 ESX-2LS
W 61802