Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71930 CD/P4A

71930 CD/P4A

Dimensions

d		150	mm
D		210	mm
B		28	mm
d₁		168.5	mm
d₂		168.5	mm
D₁		191.5	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		38.2	mm

Abutment dimensions

d_a	min.	159	mm
d_b	min.	159	mm
D_a	max.	201	mm
D_b	max.	205	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		173.5	mm

Calculation data

Basic dynamic load rating	C	114	kN
Basic static load rating	C₀	132	kN
Fatigue load limit	P_u	4.15	kN
Attainable speed for grease lubrication		6300	r/min
Attainable speed for oil-air lubrication		9500	r/min
Ball diameter	D_w	19.05	mm
Number of balls	z	23
Reference grease quantity	G_ref	35	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	470	N
Static axial stiffness, preload class A		142	N/µm
Preload class B	G_B	940	N
Static axial stiffness, preload class B		195	N/µm
Preload class C	G_C	1880	N
Static axial stiffness, preload class C		276	N/µm
Preload class D	G_D	3760	N
Static axial stiffness, preload class D		405	N/µm
Calculation factors
Calculation factor	f	1.24
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	16.2

Mass

Mass bearing

2.5

Model Number: 71930 CD/P4A
Inner Diameter：150mm Outer Diameter：210mm Width：28mm
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：2024-12-12
Application:Water Monitoring,medical equipment,Technical Equipment,Spectral Products,fabric products,tobacco machinery,spectrometer,Pneumatic Actuator,granulator,Special Equipment,wall industry
Similar models:71930 ACD/P4A 71930 ACD/HCP4A 71930 CD/P4AL 71930 CD/HCP4AH1 S71930 CD/HCP4A 71930 CD/HCP4A 71930 ACD/P4AH1 S71930 ACD/HCP4A 71930 CD/P4AH1 71930 ACD/HCP4AL
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Hot number： 22238 CCK/W33 3303 A-2ZTN9/MT33 414503 7218 CD/P4A 99196 AOH 3056 KR 30 PPXA P 3/4 FM PBM 172516 M1G1 PWM 130145150 S7020 CD/P4A SAF 1515 x 2.1/2 TLC SAF 22610 SAFS 22534 x 5.7/8 TLC W 627