Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71940 CD/P4AH1

71940 CD/P4AH1

Dimensions

d		200	mm
D		280	mm
B		38	mm
d₁		224.7	mm
d₂		224.7	mm
D₁		255.3	mm
K		0.6	mm
C₁		10	mm
r_1,2	min.	2.1	mm
r_3,4	min.	1	mm
a		51.3	mm

Abutment dimensions

d_a	min.	209	mm
d_b	min.	209	mm
D_a	max.	271	mm
D_b	max.	275	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		231.4	mm

Calculation data

Basic dynamic load rating	C	208	kN
Basic static load rating	C₀	265	kN
Fatigue load limit	P_u	7.2	kN
Attainable speed for grease lubrication		4800	r/min
Attainable speed for oil-air lubrication		7000	r/min
Ball diameter	D_w	25.4	mm
Number of balls	z	26
Reference grease quantity	G_ref	81	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	800	N
Static axial stiffness, preload class A		202	N/µm
Preload class B	G_B	1600	N
Static axial stiffness, preload class B		275	N/µm
Preload class C	G_C	3200	N
Static axial stiffness, preload class C		387	N/µm
Preload class D	G_D	6400	N
Static axial stiffness, preload class D		565	N/µm
Calculation factors
Calculation factor	f	1.23
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	16.3

Mass

Mass bearing

6.1

Model Number: 71940 CD/P4AH1
Inner Diameter：200mm Outer Diameter：280mm Width：38mm
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：2024-12-13
Application:sucker industry,test laboratory equipment and accessories,granulator,diagnostic test paper,wire industry,hanging clamp,Cutting Machine,wall materials,vertical pull,Broadcasting System,industry test
Similar models:71940 ACD/HCP4AH1 71940 CD/P4AH1 71940 CD/P4A 71940 ACD/P4A 71940 CD/HCP4AH1 71940 CD/HCP4A 71940 ACD/P4AH1 71940 ACD/HCP4A
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