Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71920 CD/HCP4AH1

71920 CD/HCP4AH1

Dimensions

d		100	mm
D		140	mm
B		20	mm
d₁		112.3	mm
d₂		112.3	mm
D₁		127.7	mm
K		0.5	mm
C₁		5.46	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		26.1	mm

Abutment dimensions

d_a	min.	106	mm
d_b	min.	106	mm
D_a	max.	134	mm
D_b	max.	136	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		115.6	mm

Calculation data

Basic dynamic load rating	C	60.5	kN
Basic static load rating	C₀	65.5	kN
Fatigue load limit	P_u	2.55	kN
Attainable speed for grease lubrication		11000	r/min
Attainable speed for oil-air lubrication		17000	r/min
Ball diameter	D_w	12.7	mm
Number of balls	z	26
Reference grease quantity	G_ref	10.5	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	230	N
Static axial stiffness, preload class A		119	N/µm
Preload class B	G_B	460	N
Static axial stiffness, preload class B		164	N/µm
Preload class C	G_C	920	N
Static axial stiffness, preload class C		232	N/µm
Preload class D	G_D	1840	N
Static axial stiffness, preload class D		340	N/µm
Calculation factors
Calculation factor	f	1.23
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	16.3

Mass

Mass bearing

0.67

Model Number: 71920 CD/HCP4AH1
Inner Diameter：100mm Outer Diameter：140mm Width：20mm
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：2026-08-19
Application:Material handling equipment,sterilizers,chamfer,welding equipment,Textile Accessories,Pneumatic Control Valves,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,flexible processing,construction machinery and equipment,water,Anti-defibrillation pacing
Similar models:71920 ACB/P4A 71920 CE/HCP4AL 71920 ACD/P4AL 71920 CB/P4AL S71920 ACB/P4A 71920 CD/P4AL 71920 CE/P4AH1 71920 CE/HCP4A 71920 CD/HCP4AL S71920 CD/P4A
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Model No. Inner Diameter Outer Diameter Width Type

305704 C-2RS1
37433
618/630 MA
99346
PPM 101212

Purchase the SKF 71920 CD/HCP4AH1 Please fill in the following

Hot number： 44x65x10 HMSA10 V 54972 6232/HC5C3S0VA970 65x110x10 CRW1 R 7036 CD/P4A 708/600 AMB 71808 CD/P4 BT4B 334106 G/HA1VA901 D/W RW4-2RS1 FYTB 1.11/16 TDW KR 32 PPA PRM 404440 SNL 3048 ATURA SNL 3234 G SYNT 80 F

Model No.	Inner Diameter	Outer Diameter	Width	Type
305704 C-2RS1
37433
618/630 MA
99346
PPM 101212