Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71820 CD/P4

71820 CD/P4

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		9000	r/min
Attainable speed for oil-air lubrication		14000	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		90	N/µm
Preload class B	G_B	360	N
Static axial stiffness, preload class B		156	N/µm
Preload class C	G_C	720	N
Static axial stiffness, preload class C		231	N/µm
Calculation factors
Calculation factor	f	1.4
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.09
Calculation factor	f_2C	1.16
Calculation factor	f_HC	1
Calculation factor	f₀	17.4

Mass

Mass bearing

0.31

Model Number: 71820 CD/P4
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:quality inspection equipment,equipment and,paint paint,Cylinder Micro,storage and transportation equipment,hydraulic pressure gauge,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,ultra-quiet generators,Ball screw,Spectral Products,coal mill
Similar models:71820 ACD/P4 71820 ACD/HCP4 71820 CD/P4 71820 CD/HCP4
BEARING POWER International Trading Co.,Ltd. specialize in 71820CD/P4 products，there is large inventory of SKF 71820 CD/P4 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/P4 Which SKF 71820CD/P4 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
1250110	317.5	349.25	15.88	Seals
BD-23096 CAK/W33-OH 3096 H	450	700	165	Bearings, units and housings
3204 A-2RS1	20	47	20.6	Bearings, units and housings
3525862	895.35	971.55	20.65	Seals
38x62x7 HMSA10 V	38	62	7	Seals
591/500 F	500	600	60	Bearings, units and housings
6303-RSL	17	47	14	Bearings, units and housings
7003 CE/P4A	17	35	10	Bearings, units and housings
7212 BEGAP	60	110	22	Bearings, units and housings
9303	23.8252	38.1	6.35	Seals
H 312 E	55	80	47	Bearings, units and housings
SAFS 22544 x 8 TLC	203.2	-	-	Bearings, units and housings

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Hot number： BD-22328 CCK/W33-AHX 2328 G 23028 CCK/W33 + AHX 3028 23068 CC/W33 58741 6105 7006 CD/HCP4AH 91707 FYR 2 11/16-3 KMT 19 PBM 230250140 M1G1 RNU 1017 MA SAF 1617 x 2.13/16 TLC SAFS 22528 T SSAFS 22340 TLC SY 30 FM