Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71902 CD/HCP4A

S71902 CD/HCP4A

Dimensions

d		15	mm
D		28	mm
B		7	mm
d₁		18.9	mm
d₂		18.9	mm
D₂		25.8	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		6.4	mm

Abutment dimensions

d_a	min.	17	mm
d_a	max.	18.5	mm
d_b	min.	17	mm
d_b	max.	18.5	mm
D_a	max.	26	mm
D_b	max.	26.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	3.97	kN
Basic static load rating	C₀	1.9	kN
Fatigue load limit	P_u	0.08	kN
Attainable speed for grease lubrication		70000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	13
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	15	N
Static axial stiffness, preload class A		18	N/µm
Preload class B	G_B	30	N
Static axial stiffness, preload class B		23	N/µm
Preload class C	G_C	60	N
Static axial stiffness, preload class C		32	N/µm
Preload class D	G_D	120	N
Static axial stiffness, preload class D		45	N/µm
Calculation factors
Calculation factor	f	1.05
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.18
Calculation factor	f_HC	1.04
Calculation factor	f₀	9.6

Mass

Mass bearing

0.014

Model Number: S71902 CD/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:Broadcasting System,clean stationery,vacuum filter,Cylinder Type,shoe-making machinery,key lock,electric pump,forklift industry,nail products,medical equipment,food safety
Similar models:S71902 ACD/P4A 71902 ACD/P4A 71902 ACE/P4AH 71902 CE/HCP4A 71902 ACE/HCP4AH S71902 CD/P4A 71902 CD/HCP4A 71902 CD/P4A 71902 CE/P4A 71902 CE/P4AH
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FSYE 2 15/16-3	74.6125	-	-	Bearings, units and housings
FYR 1 3/4-3	44.45	-	-	Bearings, units and housings
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PSMF 354520 A51	35	45	20	Bearings, units and housings
RLS 8-2RS1	25.4	57.15	15.875	Bearings, units and housings
RNA 4901.2RS	16	24	13	Bearings, units and housings
W 618/2	2	5	1.5	Bearings, units and housings

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