The NeveRest 20 is a gear motor with an attached encoder. The output shaft geometry and the gearbox housing diameter is similar to what FTC teams are familiar with. The shaft is 6mm dia and the gearbox housing is 37mm in diameter.
This gear motor rotates in the opposite direction as the NeveRest 40 and NeveRest 60. This means that the encoder counts will be in the opposite direction.
The power cable which feeds into the black encoder housing has two powerpole connectors already crimped to the end of the cable.
According to the FIRST Tech Challenge Game Manual Part 1, Rule RE09 this is legal for the 2016-2017 FTC Game.
Encoder cables are not included with this motor. There is an encoder mounted to the back side of this motor. It is a 7 pulse per revolution (ppr), hall effect encoder. Since the motor's gearbox has a 20:1 reduction, then the NeverRest 20 output shaft provides 140 ppr.
Theoretical Performance Specs:
|Speed (No Load)*||at gearbox output shaft: 275-315 rpm|
|Torque (Stall)*||350 oz-in|
|Output Shaft Diameter||6mm with 0.5mm deep flat|
|Output Shaft Style||D-Shaft|
|Output Shaft Support||Bushing|
|Electrical Connection||Power Poles for motor, 4 pin connector for encoder|
|Wire Gauge||18 AWG|
|Mounting Screw Size||M3 x 0.5mm thread|
|Product Weight||11.968 oz|
|Encoder: Cycles Per Revolution (Motor Shaft)||7|
|Encoder: Cycles Per Revolution (Output Shaft)||140|
|Encoder: Countable Events Per Revolution (Motor Shaft)||28|
|Encoder: Countable Events Per Revolution (Output Shaft)||560|