Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71804 ACD/HCP4

71804 ACD/HCP4

Dimensions

d		20	mm
D		32	mm
B		7	mm
d₁		24.1	mm
d₂		24.1	mm
D₁		28.1	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		9.6	mm

Abutment dimensions

d_a	min.	22	mm
d_b	min.	22	mm
D_a	max.	30	mm
D_b	max.	31.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		24.5	mm

Calculation data

Basic dynamic load rating	C	3.64	kN
Basic static load rating	C₀	2.5	kN
Fatigue load limit	P_u	0.106	kN
Attainable speed for grease lubrication		48000	r/min
Attainable speed for oil-air lubrication		75000	r/min
Ball diameter	D_w	3.175	mm
Number of balls	z	17
Reference grease quantity	G_ref	0.18	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	32	N
Static axial stiffness, preload class A		58	N/µm
Preload class B	G_B	100	N
Static axial stiffness, preload class B		92	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		125	N/µm
Calculation factors
Calculation factor	f	1.08
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

0.017

Model Number: 71804 ACD/HCP4
Inner Diameter：20mm Outer Diameter：32mm 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：2026-04-16
Application:beverage production,root canal filling,Broadcasting System,chemical instruments,centrifugal pump,other mold,paint paint,baler,squeeze machine etc,air conditioning tools,Performance test
Similar models:71804 CD/HCP4 71804 ACD/P4 71804 ACD/HCP4 71804 CD/P4
BEARING POWER International Trading Co.,Ltd. specialize in 71804ACD/HCP4 products，there is large inventory of SKF 71804 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 71804 ACD/HCP4 Which SKF 71804ACD/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.

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FYC 505	-	-	-	Bearings, units and housings
FYWK 30 YTA	30	-	-	Bearings, units and housings
MB 33	165	222	-	Bearings, units and housings
OKBS 86	86	-	-
PCZ 2016 M	31.75	35.71875	25.4	Bearings, units and housings
S7005 CE/HCP4A	25	47	12	Bearings, units and housings
WS 89318	90		13.5	Bearings, units and housings

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