Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71928 ACD/HCP4AL

71928 ACD/HCP4AL

Dimensions

d		140	mm
D		190	mm
B		24	mm
d₁		155.4	mm
d₂		155.4	mm
D₁		174.6	mm
b		2.6	mm
C₁		13.3	mm
C₂		5.4	mm
C₃		2.9	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/HCP4AL
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:altimeter etc,Seals,Oral Image,atomizer class,motor,engineering machine,Industrial,wheel lathe,Generator,Liposuction device,wire industry
Similar models:71928 ACD/HCP4AL S71928 CD/P4A 71928 CD/P4AH1 71928 CD/HCP4A 71928 ACD/P4AH1 71928 ACD/HCP4A 71928 CD/HCP4AL 71928 ACD/P4AL S71928 ACD/HCP4A S71928 CD/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71928ACD/HCP4AL products，there is large inventory of SKF 71928 ACD/HCP4AL 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/HCP4AL Which SKF 71928ACD/HCP4AL 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
24x47x8 CRW1 R	24	47	8	Seals
28x52x7 HMSA10 V	28	52	7	Seals
608/HR22Q2	8	22	7	Bearings, units and housings
6205	25	52	15	Bearings, units and housings
7076 BGM	380	560	82	Bearings, units and housings
86111	-	-	63.5	Seals
90333	-	-	25.4	Seals
D/W R1-2Z	1.397	4.762	2.779	Bearings, units and housings
D/W R1-5 R	2.38	7.938	2.779	Bearings, units and housings
HK 1616	16	22	16	Bearings, units and housings
SNL 3040	170	-	-	Bearings, units and housings
SNW 122x3.7/8	98.425	110	110.1852	Bearings, units and housings

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Hot number： BD-230/750 CAK/W33-AOH 30/750 319320 28x45x8 HMSA10 RG 403506 524294 71915 ACE/P4AL BT4B 334033 G/HA1VA901 FSAF 1518 x 3.1/8 TLC K 115x123x27 NA 2201.2RSX NKXR 35 NUKR 35 A SNL 3048 ATURA SSAFS 22526 x 4.1/2 TLC WS 81224