E-S Motor 12V N30 Micro Metal Gearmotor, 660 RPM

This motor is longer than N20 motors, these small brushed DC gearmotors are available in a wide range of gear ratios—from 5:1 up to 1000:1, with precious metal brushes, and all of the micro metal gearmotors have the same physical dimensions. it is generally easy to swap one version for another if your design requirements change. Versions of these gearmotors are also available with an optional extended motor shaft.