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

S71909 CD/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		13.6	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	13	kN
Basic static load rating	C₀	9.5	kN
Fatigue load limit	P_u	0.4	kN
Attainable speed for grease lubrication		19000	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	50	N
Static axial stiffness, preload class A		40	N/µm
Preload class B	G_B	100	N
Static axial stiffness, preload class B		53	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		73	N/µm
Preload class D	G_D	400	N
Static axial stiffness, preload class D		103	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	10.5

Mass

Mass bearing

0.13

Model Number: S71909 CD/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：2024-12-17
Application:Anti-defibrillation pacing,metal mold,lifting upgrade,Hydraulic Rama,chuck industry,Spectrum Products,ECG,outdoor equipment,electric hydraulic lifting platform,Medical printer,squeeze machine etc
Similar models:71909 CE/P4AL S71909 ACE/P4A S71909 CE/P4A S71909 ACE/HCP4A 71909 ACD/P4A 71909 ACD/HCP4A S71909 ACB/P4A S71909 ACD/P4A 71909 ACB/P4AL 71909 CD/HCP4A
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