Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71928 ACD/HCP4A

71928 ACD/HCP4A

Dimensions

d		140	mm
D		190	mm
B		24	mm
d₁		155.4	mm
d₂		155.4	mm
D₁		174.6	mm
r_1,2	min.	1.5	mm
r_3,4	min.	0.6	mm
a		50.6	mm

Abutment dimensions

d_a	min.	147	mm
d_b	min.	147	mm
D_a	max.	183	mm
D_b	max.	186	mm
r_a	max.	1.5	mm
r_b	max.	0.6	mm
d_n		159.5	mm

Calculation data

Basic dynamic load rating	C	90.4	kN
Basic static load rating	C₀	110	kN
Fatigue load limit	P_u	3.65	kN
Attainable speed for grease lubrication		7000	r/min
Attainable speed for oil-air lubrication		11000	r/min
Ball diameter	D_w	15.875	mm
Number of balls	z	29
Reference grease quantity	G_ref	21.6	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	560	N
Static axial stiffness, preload class A		386	N/µm
Preload class B	G_B	1120	N
Static axial stiffness, preload class B		507	N/µm
Preload class C	G_C	2240	N
Static axial stiffness, preload class C		681	N/µm
Preload class D	G_D	4480	N
Static axial stiffness, preload class D		933	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

1.39

Model Number: 71928 ACD/HCP4A
Inner Diameter：140mm Outer Diameter：190mm Width：24mm
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:ventilation equipment,intermediate,Generator,Other Measurements,experimental equipment,tobacco machinery,medical equipment,other mold,Film machine,embroidery cloth,heating fans
Similar models:S71928 ACD/HCP4A S71928 CD/HCP4A 71928 ACD/HCP4AH1 S71928 CD/P4A 71928 CD/P4AL S71928 ACD/P4A 71928 ACD/P4A 71928 CD/HCP4AH1 71928 CD/HCP4A 71928 ACD/HCP4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71928ACD/HCP4A products，there is large inventory of SKF 71928 ACD/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 71928 ACD/HCP4A Which SKF 71928ACD/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
1400 VL V	1270	-	-	Seals
240/530 ECAK30/W33 + AOH 240/530 G	500	780	250	Bearings, units and housings
17395	44.45	63.55	9.53	Seals
522856	2540	-	-	Seals
6311 M	55	120	29	Bearings, units and housings
7015 CD/HCP4A	75	115	20	Bearings, units and housings
71917 CD/HCP4A	85	120	18	Bearings, units and housings
BK 1012 RS	10	14	12	Bearings, units and housings
C 41/670 K30MB	670	1090	412	Bearings, units and housings
GEZ 104 ESX-2LS	31.75	50.8	23.8	Bearings, units and housings
S7020 CE/HCP4A	100	150	24	Bearings, units and housings
YET 207-106	34.925	72	38.9	Bearings, units and housings

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Hot number： 15194 10766 213-ZNR 29385 418/414 FY 1. FM IR 100x115x40 NKS 55 NU 20/500 ECMA S7007 CB/P4A S71930 ACD/P4A SAL 60 TXE-2LS SSAFS 22524 x 4.1/8 W 61909 SYE 3 1/2 N-118