Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71940 CD/HCP4A

71940 CD/HCP4A

Dimensions

d		200	mm
D		280	mm
B		38	mm
d₁		224.7	mm
d₂		224.7	mm
D₁		255.3	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		6000	r/min
Attainable speed for oil-air lubrication		8500	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		224	N/µm
Preload class B	G_B	1600	N
Static axial stiffness, preload class B		305	N/µm
Preload class C	G_C	3200	N
Static axial stiffness, preload class C		430	N/µm
Preload class D	G_D	6400	N
Static axial stiffness, preload class D		627	N/µm
Calculation factors
Calculation factor	f	1.23
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.18
Calculation factor	f_HC	1.04
Calculation factor	f₀	16.3

Mass

Mass bearing

5.11

Model Number: 71940 CD/HCP4A
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：2021-06-05
Application:Industrial,equipment,Cylinder Type,animal,molding machine,survey accessories,aerial work equipment,Handling machinery and various industrial machinery,tooth filling,joint protection,office equipment
Similar models:71940 CD/HCP4A 71940 ACD/HCP4A 71940 ACD/P4AH1 71940 CD/HCP4AH1 71940 ACD/HCP4AH1 71940 CD/P4A 71940 ACD/P4A 71940 CD/P4AH1
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Hot number： 22332-2CS5/VT143 240/1000 CAF/W33 30221T88/DB 402754 6326/C3VL2071 6411 N 7019 ACB/P4AL D/W RW155 KMT 16 LR 22x28x20.5 LS 1024 N 028 SAFS 22530 x 5.5/16 SAFS 23048 KATLC x 8.1/2 SSAFS 23056 KAT x 10