Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71806 ACD/HCP4

71806 ACD/HCP4

Dimensions

d		30	mm
D		42	mm
B		7	mm
d₁		34.1	mm
d₂		34.1	mm
D₁		38.1	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		11.9	mm

Abutment dimensions

d_a	min.	32	mm
d_b	min.	32	mm
D_a	max.	40	mm
D_b	max.	41.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		34.5	mm

Calculation data

Basic dynamic load rating	C	4.16	kN
Basic static load rating	C₀	3.55	kN
Fatigue load limit	P_u	0.15	kN
Attainable speed for grease lubrication		34000	r/min
Attainable speed for oil-air lubrication		53000	r/min
Ball diameter	D_w	3.175	mm
Number of balls	z	23
Reference grease quantity	G_ref	0.24	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	37	N
Static axial stiffness, preload class A		76	N/µm
Preload class B	G_B	110	N
Static axial stiffness, preload class B		117	N/µm
Preload class C	G_C	220	N
Static axial stiffness, preload class C		160	N/µm
Calculation factors
Calculation factor	f	1.14
Calculation factor	f₁	0.97
Calculation factor	f_2A	1
Calculation factor	f_2B	1.09
Calculation factor	f_2C	1.17
Calculation factor	f_HC	1.02
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

0.024

Model Number: 71806 ACD/HCP4
Inner Diameter：30mm Outer Diameter：42mm 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：2026-08-18
Application:quality inspection equipment,sanitation facilities,Cylinder Special,medical equipment,security equipment,Pneumatic Actuator,mathematical instruments,car instrument,Dental Drill etc,X-ray Equipment,outdoor equipment
Similar models:71806 CD/P4 71806 CD/HCP4 71806 ACD/HCP4 71806 ACD/P4
BEARING POWER International Trading Co.,Ltd. specialize in 71806ACD/HCP4 products，there is large inventory of SKF 71806 ACD/HCP4 Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71806 ACD/HCP4 Which SKF 71806ACD/HCP4 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

23702
35x48x8 HMS5 V
920x984x25 HDS2 V
NUP 212 ECP
YET 209-112

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Hot number： 415000 64x80x8 HMSA10 RG 7012 CB/P4AL 71918 ACD/P4A 7408 BM 75x95x10 HMSA10 RG 90x110x10 HMS5 V 99354 BS2-2220-2RS5/VT143 D/W RW2-6-2Z GEH 10 C NUP 220 ECP PFD 30 RM S71901 CD/HCP4A SNL 3176 TURA

Model No.	Inner Diameter	Outer Diameter	Width	Type
23702
35x48x8 HMS5 V
920x984x25 HDS2 V
NUP 212 ECP
YET 209-112