Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71905 CE/HCP4A

71905 CE/HCP4A

Dimensions

d		25	mm
D		42	mm
B		9	mm
d₁		30.7	mm
d₂		29.4	mm
D₁		36.39	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		9.2	mm

Abutment dimensions

d_a	min.	27	mm
d_b	min.	27	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		31.8	mm

Calculation data

Basic dynamic load rating	C	5.27	kN
Basic static load rating	C₀	2.85	kN
Fatigue load limit	P_u	0.12	kN
Attainable speed for grease lubrication		58000	r/min
Attainable speed for oil-air lubrication		90000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	16
Reference grease quantity	G_ref	0.6	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	28	N
Static axial stiffness, preload class A		23	N/µm
Preload class B	G_B	85	N
Static axial stiffness, preload class B		36	N/µm
Preload class C	G_C	170	N
Static axial stiffness, preload class C		49	N/µm
Calculation factors
Calculation factor	f	1.06
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	8.1

Mass

Mass bearing

0.036

Model Number: 71905 CE/HCP4A
Inner Diameter：25mm Outer Diameter：42mm 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:Doppler,Broadcasting System,stamping die,Vertical pull,stacker lift platform,Technical Equipment,metal mold,hanging clamp,Food testing,forklift truck,universal category
Similar models:S71905 CD/HCP4A 71905 CD/P4A 71905 ACE/P4AH S71905 ACE/HCP4A S71905 ACE/P4A S71905 CE/P4A 71905 CE/P4A 71905 ACE/HCP4AL S71905 CD/P4A 71905 CE/P4AH
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