Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71928 CD/P4A

S71928 CD/P4A

Dimensions

d		140	mm
D		190	mm
B		24	mm
d₁		155.4	mm
d₂		155.4	mm
D₂		178.25	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_a	max.	154.8	mm
d_b	min.	147	mm
d_b	max.	154.8	mm
D_a	max.	183	mm
D_b	max.	186	mm
r_a	max.	1.5	mm
r_b	max.	0.6	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
Ball diameter	D_w	15.875	mm
Number of balls	z	29
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

1.69

Model Number: S71928 CD/P4A
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：2026-08-20
Application:Ball screw,pressure control valve,altimeter etc,forklift truck,training beds etc,experimental equipment,Vertical machining,metering pump,municipal machinery,Oral Equipment,medical equipment
Similar models:S71928 ACD/HCP4A 71928 ACD/P4AH1 71928 ACD/HCP4A 71928 CD/HCP4AH1 S71928 ACD/P4A S71928 CD/P4A 71928 CD/P4AH1 71928 CD/HCP4AL 71928 CD/HCP4A 71928 ACD/P4AL
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Model No. Inner Diameter Outer Diameter Width Type

1204 ETN9
18x28x7 HMSA10 V
HM 801346 X/310
NCF 30/560 V
OKF 340

Purchase the SKF S71928 CD/P4A Please fill in the following

Hot number： 32x50x8 HMS5 V 335 VRME R 41751 580/572 594163 71972 CDMA/P4A 7208 CD/HCP4A NCF 18/630 V NJG 2314 VH NU 1015 M PBMF 607535 M1G1 PPM 252820 PSMF 9011050 A51 SAF 22518 x 3.1/16 TLC WBB1-8710

Model No.	Inner Diameter	Outer Diameter	Width	Type
1204 ETN9
18x28x7 HMSA10 V
HM 801346 X/310
NCF 30/560 V
OKF 340