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：2021-06-03
Application:coupling type,metallurgy,linear drive,teaching equipment,hot and cold box,Blood coagulation reagent,Vacuum generator,small appliances,fabric products,municipal machinery,Safety protection
Similar models:71920 ACD/HCP4AH1 S71920 ACB/P4A 71920 CD/HCP4A 71920 CB/HCP4AL S71920 CB/HCP4A 71920 ACB/HCP4AL 71920 ACB/HCP4A 71920 CE/P4AH1 71920 CE/HCP4AL 71920 ACE/P4A
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
16842	42.8752	68.22	7.95	Seals
219 NR	95	170	32	Bearings, units and housings
25100	63.5	98.45	11.13	Seals
27368	69.85	95.28	11.13	Seals
6210/HC5C3	50	90	20	Bearings, units and housings
BT4B 334135 G/HA4VA901	825.5	1168.4	-	Bearings, units and housings
GS 81114	70	95	5.25	Bearings, units and housings
NJ 18/750 MA	750	920	78	Bearings, units and housings
RNU 207 ECJ	44	72	17	Bearings, units and housings
S7020 ACB/P4A	100	150	24	Bearings, units and housings
SI 17 C	17	-	14	Bearings, units and housings
SYFWR 20 YTHR	20	-	-	Bearings, units and housings

Purchase the SKF 71920 ACD/P4A Please fill in the following

Hot number： 23038 CC/W33 30206 32x50x8 HMSA10 V 33108/DF 38749 401205 71924 CB/P4A 7220 BECCM D/W R144-2Z FY 512 M FYTB 5/8 FM H 315 HK 5020 KR 16 X W 61808 R