Catalogue R Series Rotary Actuator
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Kinetic Energy Basic Formula
KE = 1/2 Jco2
Where:
KE = J
Angle traveled (degrees) Rotation time (seconds)
go = 0.035 X
Kinetic Energy (in-lb) Rotational mass moment of inertia (in-lb-sec2) (Dependent on physical size of object and weight) Peak Velocity (rad/sec) (Assuming twice average velocity) Weight of load (lb)
Gravitational constant = 386.4 in/sec2 Radius of gyration (in)
Co
W
g
r
Moments of Inertia
Maximum Kinetic Energy Rating for Models Based on Configuration (in-lb)
BORE
STANDARD
ROTATION ADJUSTERS
CUSHIONS
SHOCK ABSORBERS (PER CYCLE/PER HOUR)
1"
0.50
0.50
5
150/300,000
1 1/2"
2.00
2.00
20
225/400,000
2"
4.00
4.00
40
600/600,000
2 1/2"
7.00
7.00
70
600/600,000
3 1/4"
15.00
15.00
150
N/A
Thin Disk-End mounted on center
Thin Disk-Mounted on center
Point Load
4-
fff I r
EL
11
J = ™xr2
g 2
g 4
Slender Rod
Thin Rectangular Plate
Thin Rectangular Plate-Mounted on center
, W1 a2 W2 b2
J = — x -rr + — x~^-
g 3 g 3
, W1 4a2 + c2 W2 4b2 + c2
J = -x-T7,-+-x-T7,-
g 12 g 12
J_ gXi2
Information subject to change without notice. For ordering information or regarding your local sales office visit www.numatics.com.
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