• part number am-0914: http://www.andymark.com/product-p/am-0914.htm
• used for disc loading arm in 2014 ultimate ascent robot
• no-load speed 75 RPM
• stall torque 16.6 ft-lb

• included in kit of parts 2013 and 2014 and several others
• used for disc loading arm in 2013 ultimate ascent robot

these have different gearboxes.

• http://www.andymark.com/product-p/am-2193.htm - 28 RPM, 33 ft-lb
• http://www.andymark.com/product-p/am-0915.htm - 198 RPM, 6.3 ft-lb

• http://www.andymark.com/Gearmotor-p/am-2971.htm

this motor consists of the PG71 motor with this encoder: http://www.andymark.com/product-p/am-2816a.htm

Note that the encoder is on the back, so it counts motor turns, not output shaft turns. Total Counts per revolution: 497 (7 Counts per motor rotation multiplied by gearbox reduction, 71)