Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71820 CD/HCP4

71820 CD/HCP4

Dimensions

d		100	mm
D		125	mm
B		13	mm
d₁		108.2	mm
d₂		108.2	mm
D₁		117	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		21.6	mm

Abutment dimensions

d_a	min.	104.6	mm
d_b	min.	104.6	mm
D_a	max.	120.4	mm
D_b	max.	123	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		109.1	mm

Calculation data

Basic dynamic load rating	C	22.5	kN
Basic static load rating	C₀	29	kN
Fatigue load limit	P_u	1.16	kN
Attainable speed for grease lubrication		11000	r/min
Attainable speed for oil-air lubrication		17000	r/min
Ball diameter	D_w	7.144	mm
Number of balls	z	34
Reference grease quantity	G_ref	3.2	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	120	N
Static axial stiffness, preload class A		99	N/µm
Preload class B	G_B	360	N
Static axial stiffness, preload class B		173	N/µm
Preload class C	G_C	720	N
Static axial stiffness, preload class C		256	N/µm
Calculation factors
Calculation factor	f	1.4
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.1
Calculation factor	f_2C	1.18
Calculation factor	f_HC	1.02
Calculation factor	f₀	17.4

Mass

Mass bearing

0.28

Model Number: 71820 CD/HCP4
Inner Diameter：100mm Outer Diameter：125mm Width：13mm
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:centrifugal pump,Flame Cutting,universal category,other CNC,Broadcasting System,tapping machine,Food testing,medical equipment,garbage disposal,air purification,chemical
Similar models:71820 CD/P4 71820 CD/HCP4 71820 ACD/P4 71820 ACD/HCP4
BEARING POWER International Trading Co.,Ltd. specialize in 71820CD/HCP4 products，there is large inventory of SKF 71820 CD/HCP4 Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71820 CD/HCP4 Which SKF 71820CD/HCP4 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.

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BD-C 4188 K30MB-AOH 24188	420	720	280	Bearings, units and housings
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K 50x57x18	50	57	18	Bearings, units and housings
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SAKAC 30 M	30	-	37	Bearings, units and housings
SONL 224-524	120	-	-	Bearings, units and housings

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Hot number： 10034 BD-22260 CCK/W33-AOH 2260 G 30311 400254 51248 98445 AH 24124 AOH 32/1000 BTM 90 ATN9/P4CDB G 25x32x4 GX 100 F NJ 318 ECM NUP 316 ECM PCM 707570 E Z 203