Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71928 CD/P4AH1

71928 CD/P4AH1

Dimensions

d		140	mm
D		190	mm
B		24	mm
d₁		155.4	mm
d₂		155.4	mm
D₁		174.6	mm
K		0.5	mm
C₁		6.92	mm
r_1,2	min.	1.5	mm
r_3,4	min.	0.6	mm
a		34.2	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	95.6	kN
Basic static load rating	C₀	116	kN
Fatigue load limit	P_u	3.9	kN
Attainable speed for grease lubrication		6700	r/min
Attainable speed for oil-air lubrication		10000	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	360	N
Static axial stiffness, preload class A		146	N/µm
Preload class B	G_B	720	N
Static axial stiffness, preload class B		201	N/µm
Preload class C	G_C	1440	N
Static axial stiffness, preload class C		286	N/µm
Preload class D	G_D	2880	N
Static axial stiffness, preload class D		420	N/µm
Calculation factors
Calculation factor	f	1.29
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	16.6

Mass

Mass bearing

1.65

Model Number: 71928 CD/P4AH1
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：2026-06-25
Application:security equipment,power tools,equipment and,pipe fittings Steel industry,test strip,static control,mathematical instruments,Hair styling device,Generator,Special Equipment,heating fans
Similar models:71928 ACD/HCP4A 71928 CD/HCP4A S71928 CD/P4A 71928 CD/P4AL S71928 ACD/P4A 71928 CD/HCP4AL 71928 ACD/P4A S71928 ACD/HCP4A 71928 ACD/HCP4AL 71928 ACD/P4AH1
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Model No. Inner Diameter Outer Diameter Width Type

FYTWK 507 Y
K 30x40x30
NCF 2996 V
NN 3005/SP
PCMF 353926 E

Purchase the SKF 71928 CD/P4AH1 Please fill in the following

Hot number： 1725250 401101 58x72x8 HMSA10 RG 619/5-2Z 619/750 MA 6203/HR22T2 71924 CE/P4A 7213 ACD/HCP4A 89417 M D/W RW155 R-2ZS FSYE 4 7/16 N 07 RNAO 30x40x17 SAFS 23048 KA x 8.15/16 SSAFS 22524 x 4.1/16

Model No.	Inner Diameter	Outer Diameter	Width	Type
FYTWK 507 Y
K 30x40x30
NCF 2996 V
NN 3005/SP
PCMF 353926 E