Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71901 ACE/HCP4A

71901 ACE/HCP4A

Dimensions

d		12	mm
D		24	mm
B		6	mm
d₁		16	mm
d₂		15.26	mm
D₁		19.95	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		7.7	mm

Abutment dimensions

d_a	min.	14	mm
d_b	min.	14	mm
D_a	max.	22	mm
D_b	max.	23.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		16.8	mm

Calculation data

Basic dynamic load rating	C	2.03	kN
Basic static load rating	C₀	0.865	kN
Fatigue load limit	P_u	0.036	kN
Attainable speed for grease lubrication		98000	r/min
Attainable speed for oil-air lubrication		150000	r/min
Ball diameter	D_w	3.175	mm
Number of balls	z	12
Reference grease quantity	G_ref	0.1	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	18	N
Static axial stiffness, preload class A		30	N/µm
Preload class B	G_B	55	N
Static axial stiffness, preload class B		45	N/µm
Preload class C	G_C	110	N
Static axial stiffness, preload class C		59	N/µm
Calculation factors
Calculation factor	f	1.04
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

0.009

Model Number: 71901 ACE/HCP4A
Inner Diameter：12mm Outer Diameter：24mm Width：6mm
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:plastic molding,Laser Devices,transportation equipment,Cutting Machine,machining,altimeter etc,defogging and degreasing,casting embedding,intermediate,sewage pump,experimental equipment
Similar models:71901 ACE/P4A 71901 ACD/P4A 71901 CE/P4A 71901 CE/HCP4A S71901 CD/HCP4A 71901 ACE/HCP4AH S71901 ACD/P4A 71901 CE/HCP4AH 71901 CE/P4AH S71901 CD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71901ACE/HCP4A products，there is large inventory of SKF 71901 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 71901 ACE/HCP4A Which SKF 71901ACE/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： 331092 A 401800 544091/544118 9303 BEAS 025057-2RS FYTBK 30 TD GE 220 ES-2RS N 1017 KTNHA/HC5SP HCCE 045 R NATR 5 PPXA NKI 80/25 PBMF 061206 M1 PCM 160165100 M SAF 23026 KA x 4.5/16 SSAFS 22640 TLC