A useful and powerful motor drive unit.   Low voltage model runs from up to 12V.AC or DC from a PlugPak or by banana sockets from a normal classroom power supply.  For mains powered model, see LB2200-101. Rectangular shape can be clamped to the bench or held down with elastic bands or with a weight on top.   A pulley on the motor shaft can drive belts of various types.  

Speed control on the opposite end provides smooth control from almost stopped to about 3000 revs per minute.

 Instruction Sheet