Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 727 ACD/HCP4A

727 ACD/HCP4A

Dimensions

d		7	mm
D		22	mm
B		7	mm
d₁		12.6	mm
d₂		12.6	mm
D₁		17.4	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		7.1	mm

Abutment dimensions

d_a	min.	9.4	mm
d_b	min.	9.4	mm
D_a	max.	19.6	mm
D_b	max.	20.2	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm
d_n		13.6	mm

Calculation data

Basic dynamic load rating	C	2.91	kN
Basic static load rating	C₀	1.12	kN
Fatigue load limit	P_u	0.048	kN
Attainable speed for grease lubrication		85000	r/min
Attainable speed for oil-air lubrication		130000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	9
Reference grease quantity	G_ref	0.162	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	18	N
Static axial stiffness, preload class A		30	N/µm
Preload class B	G_B	36	N
Static axial stiffness, preload class B		39	N/µm
Preload class C	G_C	72	N
Static axial stiffness, preload class C		51	N/µm
Preload class D	G_D	144	N
Static axial stiffness, preload class D		68	N/µm
Calculation factors
Calculation factor	f	1.02
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.01
Calculation factor	f_2C	1.03
Calculation factor	f_2D	1.06
Calculation factor	f_HC	1.01
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

0.012

Model Number: 727 ACD/HCP4A
Inner Diameter：7mm Outer Diameter：22mm Width：7mm
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:Processing machinery,impression material,Pneumatic Actuator,Infrared Technology,food testing,electronic materials,hydraulic actuator,powder metallurgy,enzyme,Antenna Industry,chemical instruments
Similar models:PSM 607270 A51 BT4B 328727 G/HA1VA901 7272 BM 727 CD/HCP4A 727 ACD/HCP4A 727 ACD/P4A 727 CD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 727ACD/HCP4A products，there is large inventory of SKF 727 ACD/HCP4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 727 ACD/HCP4A Which SKF 727ACD/HCP4A 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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