Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71920 CD/HCP4A

71920 CD/HCP4A

Dimensions

d		100	mm
D		140	mm
B		20	mm
d₁		112.3	mm
d₂		112.3	mm
D₁		127.7	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/HCP4A
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：2025-12-09
Application:chromatography,small diesel generators,lifting chain,Optical Instruments,Small air generators,cooling system,stacker lift platform,sheet industry,E Beauty,drawing die,gear grinding machine
Similar models:S71920 ACB/HCP4A S71920 ACE/HCP4A 71920 ACD/P4A 71920 CB/HCP4AL 71920 CD/HCP4AL 71920 ACB/P4A S71920 CD/P4A 71920 CB/HCP4A 71920 CD/HCP4A 71920 CE/P4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71920CD/HCP4A products，there is large inventory of SKF 71920 CD/HCP4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71920 CD/HCP4A Which SKF 71920CD/HCP4A is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-22216 EK-H 316	70	140	33	Bearings, units and housings
2305 ETN9	25	62	24	Bearings, units and housings
4984	12.7	25.37	6.35	Seals
52488	133.35	165.1	12.7	Seals
6005-RSL	25	47	12	Bearings, units and housings
7015 ACE/HCP4AH1	75	115	20	Bearings, units and housings
KML 38	28	-	190	Bearings, units and housings
MB 38	190	252	-	Bearings, units and housings
N 39/500 ECMB/W33	500	670	128	Bearings, units and housings
NAO 17x30x13	17	30	13	Bearings, units and housings
SAF 23040 KATLC x 7.1/8	182.5625	-	-	Bearings, units and housings
W 61907	35	55	10	Bearings, units and housings

Purchase the SKF 71920 CD/HCP4A Please fill in the following

Hot number： 18817 BD-232/500 CAK/W33-AOHX 32/500 G 306704 C 32019 X 32948/DF 408103 61814 HK 2210 K 60x68x23 NATR 20 X NATV 17 PPXA OKBS 63 OKCS 250 OKF 340 WBB1-8700 R