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4 CHECK OUTPUT TORQUE<br />
Output torque (M2) of selected unit must be equal or more than required output torque at gearbox outputshaft.<br />
Required output torque at gearbox outputshaft = 630 lb.in<br />
1.5 HP<br />
N2 i lb-in Fm lb<br />
Output<br />
Speed<br />
Ratio<br />
Output<br />
Torque<br />
Service<br />
Factor<br />
Overhung<br />
Load<br />
SERIES C<br />
SELECTION PROCEDURE<br />
FOR MOTORIZED UNITS<br />
Unit Designation<br />
Column Entry<br />
Spaces to be filled when entering order<br />
Weight<br />
Motor<br />
Size<br />
4 POLE<br />
201 8.59 394 1.74 625 C 0 3 2 1 8 . 0 _ _ _ _ _ _ 1 . 5 B _ _ 62.7 145TC<br />
149 11.61 527 1.41 625 1 1 .<br />
131 13.20 595 1.29 625 1 2 .<br />
115 14.95 672 1.18 625 1 4 .<br />
105 16.36 657 1.12 625 1 6 .<br />
However the output torque is only 595 against the requirement of 630 lb.in, hence a unit fitted with a 2HP motor is required.<br />
2 HP<br />
N2 i lb-in Fm lb<br />
Output<br />
Speed<br />
Ratio<br />
Output<br />
Torque<br />
Service<br />
Factor<br />
Overhung<br />
Load<br />
Selected unit’s output torque (M2) = 794 lb.in, therefore the torque from a 2HP motor is acceptable.<br />
Unit Designation<br />
Column Entry<br />
Spaces to be filled when entering order<br />
Weight<br />
201 8.59 526 1.30 625 C 0 3 2 1 8 . 0 _ _ _ _ _ _ 2 . 0 B _ _ 69.7 145TC<br />
149 11.61 703 1.06 625 1 1 .<br />
131 13.20 794 0.96 625 1 2 .<br />
115 14.95 896 0.89 560 1 4 .<br />
105 16.36 876 0.84 525 1 6 .<br />
Motor<br />
Size<br />
5 CHECK SERVICE FACTOR<br />
Service factor (Fm) of selected unit must be equal or more than required service factor.<br />
Required service factor of gearbox = 1.25<br />
2 HP<br />
N2 i lb-in Fm lb<br />
Output<br />
Speed<br />
Ratio<br />
Output<br />
Torque<br />
Service<br />
Factor<br />
Overhung<br />
Load<br />
Unit Designation<br />
Column Entry<br />
Spaces to be filled when entering order<br />
Weight<br />
201 8.59 526 1.30 625 C 0 3 2 1 8 . 0 _ _ _ _ _ _ 2 . 0 B _ _ 69.7 145TC<br />
149 11.61 703 1.06 625 1 1 .<br />
131 13.20 794 0.96 625 1 2 .<br />
115 14.95 896 0.89 560 1 4 .<br />
105 16.36 876 0.84 525 1 6 .<br />
Motor<br />
Size<br />
201 8.59 536 2.16 1180 C 0 4 2 1 8 . 0 _ _ _ _ _ _ 2 . 0 B _ _ 69.7 145TC<br />
149 11.61 719 1.76 1180 1 1 .<br />
131 13.20 813 1.60 1180 1 2 .<br />
115 14.95 918 1.47 1180 1 4 .<br />
The service factor (Fm) is only 0.96, therefore this unit is not acceptable.and a larger C0421 unit must be selected with a service factor (Fm) of 1.60<br />
5 CHECK OVERHUNG LOADS<br />
If sprocket, gear, etc is mounted on the outputshaft then refer to Overhung Loads Procedure, page 54, and compare with<br />
allowable overhung load (lb) of selected unit<br />
Allowable overhung load (lb) must be equal or more than calculated overhung load requirement<br />
2 HP<br />
N2 i lb-in Fm lb<br />
Output<br />
Speed<br />
Ratio<br />
Output<br />
Torque<br />
Service<br />
Factor<br />
Overhung<br />
Load<br />
Unit Designation<br />
Column Entry<br />
Spaces to be filled when entering order<br />
Weight Motor<br />
Size<br />
201 8.59 526 1.30 625 C 0 3 2 1 8 . 0 _ _ _ _ _ _ 2 . 0 B _ _ 69.7 145TC<br />
149 11.61 703 1.06 625 1 1 .<br />
131 13.20 794 0.96 625 1 2 .<br />
115 14.95 896 0.89 560 1 4 .<br />
105 16.36 876 0.84 525 1 6 .<br />
201 8.59 536 2.16 1180 C 0 4 2 1 8 . 0 _ _ _ _ _ _ 2 . 0 B _ _ 69.7 145TC<br />
149 11.61 719 1.76 1180 1 1 .<br />
131 13.20 813 1.60 1180 1 2 .<br />
115 14.95 918 1.47 1180 1 4 .<br />
NOTE: If any of the following conditions occur then consult our Application Engineers:-<br />
a) Inertia of the Driven Machine (Referred to motor speed) >10 b) Ambient temperature is above 104ºC<br />
6<br />
Inertia of Gear Unit plus Motor
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