Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71920 ACD/P4A

71920 ACD/P4A

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		38.1	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	57.2	kN
Basic static load rating	C₀	63	kN
Fatigue load limit	P_u	2.4	kN
Attainable speed for grease lubrication		8000	r/min
Attainable speed for oil-air lubrication		13000	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	360	N
Static axial stiffness, preload class A		255	N/µm
Preload class B	G_B	720	N
Static axial stiffness, preload class B		336	N/µm
Preload class C	G_C	1440	N
Static axial stiffness, preload class C		449	N/µm
Preload class D	G_D	2880	N
Static axial stiffness, preload class D		613	N/µm
Calculation factors
Calculation factor	f	1.23
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_2D	1.14
Calculation factor	f_HC	1
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.8

Model Number: 71920 ACD/P4A
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：2024-12-13
Application:animal,pump industry,position switch,safety testing,reinforced machinery,sucker industry,Machine Tool Accessories,mechanical annex,Logistics Equipment,boring bar boring bar,impression material
Similar models:71920 ACB/P4A 71920 CB/HCP4AL 71920 ACE/P4AL 71920 CB/P4A 71920 ACB/HCP4A 71920 ACD/P4AL 71920 CB/P4AL S71920 ACD/HCP4A 71920 CD/P4AL 71920 CE/HCP4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71920ACD/P4A products，there is large inventory of SKF 71920 ACD/P4A 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 ACD/P4A Which SKF 71920ACD/P4A 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
44320	112.7252	152.43	12.7	Seals
6220 M	100	180	34	Bearings, units and housings
AOH 30/950	900	950	355	Bearings, units and housings
BS2-2313-2RS/VT143	65	140	56	Bearings, units and housings
GRA 3020	100	135	37	Bearings, units and housings
C 2320	100	215	73	Bearings, units and housings
GEZ 200 ES	50.8	80.963	38.1	Bearings, units and housings
HE 2322 E	101.6	110	105	Bearings, units and housings
K 18x22x17	18	22	17	Bearings, units and housings
LM 545848/810	234.848	314.325	49.212	Bearings, units and housings
OKCX 610	610		-
SAW 23538 x 7 T	177.8	-	-	Bearings, units and housings

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