Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71904 CE/HCP4AH

71904 CE/HCP4AH

Dimensions

d		20	mm
D		37	mm
B		9	mm
d₁		25.65	mm
d₂		24.4	mm
D₁		31.49	mm
K		0.5	mm
C₁		5.45	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		8.5	mm

Abutment dimensions

d_a	min.	22	mm
d_b	min.	22	mm
D_a	max.	35	mm
D_b	max.	36.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		26.7	mm

Calculation data

Basic dynamic load rating	C	4.88	kN
Basic static load rating	C₀	2.4	kN
Fatigue load limit	P_u	0.102	kN
Attainable speed for grease lubrication		68000	r/min
Attainable speed for oil-air lubrication		106000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	14
Reference grease quantity	G_ref	0.5	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	26	N
Static axial stiffness, preload class A		20	N/µm
Preload class B	G_B	79	N
Static axial stiffness, preload class B		31	N/µm
Preload class C	G_C	157	N
Static axial stiffness, preload class C		43	N/µm
Calculation factors
Calculation factor	f	1.04
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.05
Calculation factor	f_2C	1.09
Calculation factor	f_HC	1.01
Calculation factor	f₀	7.8

Mass

Mass bearing

0.032

Model Number: 71904 CE/HCP4AH
Inner Diameter：20mm Outer Diameter：37mm Width：9mm
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:engineering machinery,coal,Dental Drill etc,reinforced machinery,extruder,aerial work equipment,horizontal processing,Laser Cutting,die casting mold,journal lathe,physical instruments
Similar models:71904 ACE/P4AH S71904 ACD/HCP4A 71904 CE/P4AH 71904 ACD/HCP4A 71904 CE/P4A S71904 ACE/HCP4A S71904 ACE/P4A S71904 CE/HCP4A 71904 CE/HCP4AH 71904 ACE/P4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71904CE/HCP4AH products，there is large inventory of SKF 71904 CE/HCP4AH Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71904 CE/HCP4AH Which SKF 71904CE/HCP4AH 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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