Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71921 ACD/HCP4AH1

71921 ACD/HCP4AH1

Dimensions

d		105	mm
D		145	mm
B		20	mm
d₁		117.3	mm
d₂		117.3	mm
D₁		132.7	mm
K		0.5	mm
C₁		5.46	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		39.3	mm

Abutment dimensions

d_a	min.	111	mm
d_b	min.	111	mm
D_a	max.	139	mm
D_b	max.	141	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		120.6	mm

Calculation data

Basic dynamic load rating	C	57.2	kN
Basic static load rating	C₀	65.5	kN
Fatigue load limit	P_u	2.5	kN
Attainable speed for grease lubrication		9000	r/min
Attainable speed for oil-air lubrication		15000	r/min
Ball diameter	D_w	12.7	mm
Number of balls	z	27
Reference grease quantity	G_ref	11.1	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	360	N
Static axial stiffness, preload class A		292	N/µm
Preload class B	G_B	720	N
Static axial stiffness, preload class B		384	N/µm
Preload class C	G_C	1440	N
Static axial stiffness, preload class C		514	N/µm
Preload class D	G_D	2880	N
Static axial stiffness, preload class D		703	N/µm
Calculation factors
Calculation factor	f	1.25
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.17
Calculation factor	f_HC	1.04
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

0.7

Model Number: 71921 ACD/HCP4AH1
Inner Diameter：105mm Outer Diameter：145mm 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：2024-12-16
Application:Display Devices,labor insurance,pressure control valve,Industry,X-ray Equipment,Spectrum Products,medical equipment,switch,Roller mill,laser devices,ship special
Similar models:S71921 ACD/P4A 71921 CD/HCP4A S71921 ACD/HCP4A 71921 CD/P4AL 71921 CD/HCP4AL 71921 ACD/P4AH1 71921 ACD/HCP4AH1 71921 CD/HCP4AH1 71921 CD/P4A 71921 ACD/HCP4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71921ACD/HCP4AH1 products，there is large inventory of SKF 71921 ACD/HCP4AH1 Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71921 ACD/HCP4AH1 Which SKF 71921ACD/HCP4AH1 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
16290	41.275	65.07	7.95	Seals
17645	44.45	73.03	9.53	Seals
22310 E/VA405	50	110	40	Bearings, units and housings
2318	90	190	64	Bearings, units and housings
239/530 CA/W33	530	710	136	Bearings, units and housings
71920 ACD/HCP4AH1	100	140	20	Bearings, units and housings
GEH 50 ES-2RS	50	90	36	Bearings, units and housings
H 2330 L	135	150	139	Bearings, units and housings
IR 35x40x17 EGS	35	40	17	Seals
NUP 316 ECML	80	170	39	Bearings, units and housings
QJ 317 N2MA	85	180	41	Bearings, units and housings
Z 011	55	-	6	Seals

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