Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71972 ACDMA/HCP4A

71972 ACDMA/HCP4A

Dimensions

d		360	mm
D		480	mm
B		56	mm
d₁		397	mm
d₂		397	mm
D₁		443	mm
r_1,2	min.	3	mm
r_3,4	min.	1.1	mm
a		126.3	mm

Abutment dimensions

d_a	min.	373	mm
d_b	min.	373	mm
D_a	max.	465	mm
D_b	max.	474	mm
r_a	max.	2.5	mm
r_b	max.	1	mm
d_n		407	mm

Calculation data

Basic dynamic load rating	C	371	kN
Basic static load rating	C₀	670	kN
Fatigue load limit	P_u	13.7	kN
Attainable speed for grease lubrication		2200	r/min
Attainable speed for oil-air lubrication		3600	r/min
Ball diameter	D_w	38.1	mm
Number of balls	z	30
Reference grease quantity	G_ref	313	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	2300	N
Static axial stiffness, preload class A		837	N/µm
Preload class B	G_B	4600	N
Static axial stiffness, preload class B		1096	N/µm
Preload class C	G_C	9200	N
Static axial stiffness, preload class C		1455	N/µm
Preload class D	G_D	18400	N
Static axial stiffness, preload class D		1975	N/µm
Calculation factors
Calculation factor	f	1.29
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.17
Calculation factor	f_HC	1.04
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

22.6

Model Number: 71972 ACDMA/HCP4A
Inner Diameter：360mm Outer Diameter：480mm Width：56mm
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：2026-04-17
Application:Hydraulic Couplings,Industrial,tapping machine,aerial work platform,sleep monitoring,metering pump,fruit and vegetable processing,industrial equipment,garbage disposal,food / grain / food equipment,Control
Similar models:71972 BM 71972 CDMA/HCP4A 71972 CDMA/P4A 71972 ACMB 71972 AMB 71972 ACDMA/P4A 71972 ACDMA/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71972ACDMA/HCP4A products，there is large inventory of SKF 71972 ACDMA/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 71972 ACDMA/HCP4A Which SKF 71972ACDMA/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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