Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71905 ACE/P4AH

71905 ACE/P4AH

Dimensions

d		25	mm
D		42	mm
B		9	mm
d₁		30.7	mm
d₂		29.4	mm
D₁		36.39	mm
K		0.5	mm
C₁		5.45	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		12.8	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	4.94	kN
Basic static load rating	C₀	2.7	kN
Fatigue load limit	P_u	0.114	kN
Attainable speed for grease lubrication		44000	r/min
Attainable speed for oil-air lubrication		68000	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	45	N
Static axial stiffness, preload class A		51	N/µm
Preload class B	G_B	140	N
Static axial stiffness, preload class B		77	N/µm
Preload class C	G_C	270	N
Static axial stiffness, preload class C		100	N/µm
Calculation factors
Calculation factor	f	1.06
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
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

0.04

Model Number: 71905 ACE/P4AH
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：2026-04-16
Application:Ball screw,cleaning agent,stamping die and its equipment,walking Food processing machinery and equipment,Forging machine,surgical instruments,gear type,Anti-defibrillation pacing,Generator,instrument,Cylinder Micro
Similar models:S71905 ACE/P4A 71905 ACE/HCP4AL S71905 ACD/HCP4A 71905 CE/HCP4A 71905 CE/HCP4AL 71905 CE/P4AH 71905 CD/P4A S71905 CE/HCP4A S71905 ACE/HCP4A 71905 ACE/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71905ACE/P4AH products，there is large inventory of SKF 71905 ACE/P4AH Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71905 ACE/P4AH Which SKF 71905ACE/P4AH 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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