Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 729 ACD/HCP4A

729 ACD/HCP4A

Dimensions

d		9	mm
D		26	mm
B		8	mm
d₁		15.1	mm
d₂		15.1	mm
D₁		20.9	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		8.3	mm

Abutment dimensions

d_a	min.	11.4	mm
d_b	min.	11.4	mm
D_a	max.	23.6	mm
D_b	max.	24.2	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm
d_n		16.3	mm

Calculation data

Basic dynamic load rating	C	3.97	kN
Basic static load rating	C₀	1.6	kN
Fatigue load limit	P_u	0.067	kN
Attainable speed for grease lubrication		70000	r/min
Attainable speed for oil-air lubrication		110000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	9
Reference grease quantity	G_ref	0.258	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	25	N
Static axial stiffness, preload class A		36	N/µm
Preload class B	G_B	50	N
Static axial stiffness, preload class B		46	N/µm
Preload class C	G_C	100	N
Static axial stiffness, preload class C		60	N/µm
Preload class D	G_D	200	N
Static axial stiffness, preload class D		79	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

0.018

Model Number: 729 ACD/HCP4A
Inner Diameter：9mm Outer Diameter：26mm Width：8mm
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：2026-04-16
Application:magnetic elements,bio-chemical,stamping die,Rolling mill,manual Tools,Pneumatic Actuator,Switch,pressure control valve,machine tool spindle,auto tools,medical equipment
Similar models:729 ACD/HCP4A 331729 729 CD/HCP4A 729 CD/P4A 729 ACD/P4A 2789/2729
BEARING POWER International Trading Co.,Ltd. specialize in 729ACD/HCP4A products，there is large inventory of SKF 729 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 729 ACD/HCP4A Which SKF 729ACD/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
23843	60.325	92.02	11.13	Seals
249/1120 CAF/W33	1120	1460	335	Bearings, units and housings
7205 ACD/HCP4A	25	52	15	Bearings, units and housings
7419 CBM	95	250	55	Bearings, units and housings
H 216	70	105	46	Bearings, units and housings
KR 52 XB	-	52	66	Bearings, units and housings
NU 2340 ECML	200	420	138	Bearings, units and housings
PWM 455330	45	53	30	Bearings, units and housings
SAF 23044 KAT x 7.7/8	201.6125	-	-	Bearings, units and housings
SAW 23526 x 4.5/16 T	109.5375	-	-	Bearings, units and housings
SY 25 TF	25	-	-	Bearings, units and housings
SYF 40 FM	40	-	-	Bearings, units and housings

Purchase the SKF 729 ACD/HCP4A Please fill in the following

Hot number： BD-23168 CCK/W33-OH 3168 H 29364 E 305-2ZNR 56x72x8 HMS5 RG 6230 M 891/530 M 90075 940 VRME R 99364 AXK 90120 BD-C 2318 K-AHX 2318 NU 2304 ECP OH 31/560 H OH 3192 H YAR 213-2F