Maxon A-Max Miniature DC Motor w/ Gear Reduction 281280 X11 Swiss Hall Encoder

Maxon A-Max Motor. P/N 281280 X11. Used, removed from functional equipment. 

I do not have a spec sheet for this motor, but it appears to be a DC motor with hall effect encoder. 

16mm body diameter, 64mm overall length excluding cable. 12-toothed gear is ~5.6mm in diameter (it is welded on the shaft). 

I'm not sure if the 'X11' means 11:1 gear reduction? This was previously used with a rack for linear motion. 

Please see the photos, unfortunately I have no specs so I can not guarantee any feature. Please contact Maxon if a detail is critical.