Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71919 CD/HCP4A

71919 CD/HCP4A

Dimensions

d		95	mm
D		130	mm
B		18	mm
d₁		105.8	mm
d₂		105.8	mm
D₁		119.2	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		24.1	mm

Abutment dimensions

d_a	min.	101	mm
d_b	min.	101	mm
D_a	max.	124	mm
D_b	max.	126	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		108.6	mm

Calculation data

Basic dynamic load rating	C	49.4	kN
Basic static load rating	C₀	55	kN
Fatigue load limit	P_u	2.2	kN
Attainable speed for grease lubrication		12000	r/min
Attainable speed for oil-air lubrication		18000	r/min
Ball diameter	D_w	11.112	mm
Number of balls	z	28
Reference grease quantity	G_ref	7.8	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	190	N
Static axial stiffness, preload class A		112	N/µm
Preload class B	G_B	380	N
Static axial stiffness, preload class B		155	N/µm
Preload class C	G_C	760	N
Static axial stiffness, preload class C		220	N/µm
Preload class D	G_D	1520	N
Static axial stiffness, preload class D		323	N/µm
Calculation factors
Calculation factor	f	1.26
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	16.4

Mass

Mass bearing

0.49

Model Number: 71919 CD/HCP4A
Inner Diameter：95mm Outer Diameter：130mm Width：18mm
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：2026-04-16
Application:set bacteria instrument,Forging machine,tower crane,X-ray Equipment,other CNC,plastic rolling,welding equipment,plastic molding,Spectrum Products,Plastic molding,Vertical machining
Similar models:S71919 ACE/HCP4A S71919 ACB/HCP4A S71919 CB/HCP4A 71919 CE/P4A 71919 CE/HCP4AL 71919 ACE/HCP4A S71919 CD/P4A S71919 CE/P4A 71919 CD/P4AH1 71919 CE/HCP4AH1
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Hot number： 407004 6001/HR11TN 71902 ACD/HCP4A 71911 CE/HCP4AH1 BT4B 328374/HA1 FBSA 206/QFC H 312 IR 30x35x20 LR 17x20x30.5 NA 2206.2RSX NJ 2309 ECML NNU 41/1120 M/W33 NU 310 ECML RNA 4915 SY 50 LDW