Model selection

1. Model calculation formula: (1) PIN = P1Xf (the number of starts and stops per hour is not more than 20 times/hour)

(2) PIN = 1.2XP1Xf (number of starts and stops per hour: 21 to 60 times/hour)

(1) PIN ≤ PN

Modeling power must be less than or equal to the allowable power

Where: PIN is the selected power, P1 is the actual required power, f is the usage factor, and PN is the allowable power.

Use factor f

Thermal power calibration

1. Thermal power calculation: PGN = PGXf1 × f2

PGN>P1(natural cooling)

PGN<P1(Fan or cooling)

In the formula: f1 is the ambient temperature coefficient, f2 is the continuous working coefficient, PG is the commutator heat capacity, P1 is the actual power required for work, and PGN is the commutator calculated heat capacity.

2. Ambient temperature coefficient f1

3. Continuous working coefficient f2

Heat capacity PG (natural cooling)

General Technical Specifications

1. The dimensions of key and keyway shall comply with the provisions of GB1095-79 and GB1096-79, and the keyway width tolerance; shaft N9, hub JS9.

2. The center holes of the output and input shafts are both equipped with screw holes, and the specifications are as follows:

D=11~13mm screw hole M3 D>24~30mm screw hole M10

>13~16mm screw hole M5 >30~38mm screw hole M12

>16~21mm screw hole M6 >38~50mm screw hole M16

>21~24mm screw hole M8 >50~85mm screw hole M20

3. In the installation dimension drawing, the input shaft and output shaft can be used as the output shaft to implement speed-increasing transmission if the speed and torque allow.