Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71902 CE/HCP4A

71902 CE/HCP4A

Dimensions

d		15	mm
D		28	mm
B		7	mm
d₁		19.1	mm
d₂		18.1	mm
D₁		23.9	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		6.7	mm

Abutment dimensions

d_a	min.	17	mm
d_b	min.	17	mm
D_a	max.	26	mm
D_b	max.	27.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		20	mm

Calculation data

Basic dynamic load rating	C	3.19	kN
Basic static load rating	C₀	1.4	kN
Fatigue load limit	P_u	0.06	kN
Attainable speed for grease lubrication		90000	r/min
Attainable speed for oil-air lubrication		140000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	12
Reference grease quantity	G_ref	0.2	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	17	N
Static axial stiffness, preload class A		15	N/µm
Preload class B	G_B	51	N
Static axial stiffness, preload class B		24	N/µm
Preload class C	G_C	102	N
Static axial stiffness, preload class C		32	N/µm
Calculation factors
Calculation factor	f	1.04
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.05
Calculation factor	f_2C	1.09
Calculation factor	f_HC	1.01
Calculation factor	f₀	7.7

Mass

Mass bearing

0.013

Model Number: 71902 CE/HCP4A
Inner Diameter：15mm Outer Diameter：28mm Width：7mm
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：2025-12-09
Application:food packaging,Cleaning equipment,SPA equipment,food safety,Industrial equipment,product accessories,car and accessories,extruder,reducer,non-ferrous metal alloy,construction machinery and equipment
Similar models:71902 ACE/P4AH S71902 CD/P4A 71902 CE/P4A 71902 ACD/P4A 71902 ACE/P4A 71902 CE/HCP4A 71902 CD/P4A 71902 CE/P4AH 71902 ACE/HCP4AH S71902 ACD/P4A
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Hot number： 24989 231/800 CAK/W33 26128 7200 ACD/HCP4A BT4-0016 G/HA1C445VA901 D/W RW156 R FYRP 3 7/16-18 GEP 100 FS H 3024 E HM 31/1060 IR 55x65x28 NU 309 ECNP S7018 CB/P4A S7210 ACD/HCP4A SIJ 50 ES