Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71909 ACD/P4A

S71909 ACD/P4A

Dimensions

d		45	mm
D		68	mm
B		12	mm
d₁		52.6	mm
d₂		52.6	mm
D₂		62.62	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		19.3	mm

Abutment dimensions

d_a	min.	48.2	mm
d_a	max.	52.1	mm
d_b	min.	48.2	mm
d_b	max.	52.1	mm
D_a	max.	64.8	mm
D_b	max.	66.6	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	12.4	kN
Basic static load rating	C₀	9	kN
Fatigue load limit	P_u	0.38	kN
Attainable speed for grease lubrication		17000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	23
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	80	N
Static axial stiffness, preload class A		100	N/µm
Preload class B	G_B	160	N
Static axial stiffness, preload class B		129	N/µm
Preload class C	G_C	320	N
Static axial stiffness, preload class C		168	N/µm
Preload class D	G_D	640	N
Static axial stiffness, preload class D		225	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_2D	1.14
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

0.13

Model Number: S71909 ACD/P4A
Inner Diameter：45mm Outer Diameter：68mm Width：12mm
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:glass,storage shelves,Vertical machining,directional control valve,Film machine,Gear grinding machine,atomizer class,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,tower crane,Cylinder Pneumatic Treatment Element,Industrial
Similar models:71909 ACE/P4AL 71909 ACE/P4A 71909 ACE/HCP4A S71909 ACB/HCP4A S71909 ACD/P4A 71909 ACB/P4AL 71909 CB/HCP4AL 71909 CE/P4AL 71909 ACE/P4AH1 71909 CE/HCP4AH1
BEARING POWER International Trading Co.,Ltd. specialize in S71909ACD/P4A products，there is large inventory of SKF S71909 ACD/P4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the S71909 ACD/P4A Which SKF S71909ACD/P4A 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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