Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71900 CD/HCP4A

71900 CD/HCP4A

Dimensions

d		10	mm
D		22	mm
B		6	mm
d₁		14	mm
d₂		14	mm
D₁		18	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		5.2	mm

Abutment dimensions

d_a	min.	12	mm
d_b	min.	12	mm
D_a	max.	20	mm
D_b	max.	20.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm
d_n		14.8	mm

Calculation data

Basic dynamic load rating	C	2.51	kN
Basic static load rating	C₀	1.1	kN
Fatigue load limit	P_u	0.048	kN
Attainable speed for grease lubrication		80000	r/min
Attainable speed for oil-air lubrication		120000	r/min
Ball diameter	D_w	3.175	mm
Number of balls	z	12
Reference grease quantity	G_ref	0.12	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	10	N
Static axial stiffness, preload class A		13	N/µm
Preload class B	G_B	20	N
Static axial stiffness, preload class B		18	N/µm
Preload class C	G_C	40	N
Static axial stiffness, preload class C		25	N/µm
Preload class D	G_D	80	N
Static axial stiffness, preload class D		35	N/µm
Calculation factors
Calculation factor	f	1.03
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	9.5

Mass

Mass bearing

0.009

Model Number: 71900 CD/HCP4A
Inner Diameter：10mm Outer Diameter：22mm Width：6mm
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:powder metallurgy,Polymer,preservation equipment,extruder,equipment,animal,Other Measurements,surgical instruments,key lock,medical equipment,intermediate
Similar models:S71900 CD/HCP4A 71900 ACE/HCP4A 71900 CE/P4A 71900 CE/HCP4AH S71900 ACD/P4A 71900 CE/HCP4A 71900 CD/P4A 71900 ACD/P4A 71900 CE/P4AH 71900 ACD/HCP4A
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