These gearboxes are used to transfer power through 90 degrees. they come in all sizes, from small 10mm shafts to 100's of mm across.
Market sectors for these include.
High speed machined aluminium parts used in the manufacture of portable electronc box surveillance equipment. Products like drug sniffers used by Police and Customs officials throughout the world.
Several Small servo motor bodies, miniature electric motors used in the replacement of limbs for amputees.
These motors are very small, approx. 30mm x 13mm x 16mm. After extrusion, they are cut to lengh, and CNC machined to produce the indent inside for the motor fitment, along with several very small holes, some of them threaded. They are then satin etched and Anodised for a protective finish.
These very small ones will problably end up as part of finger replacements.
A part of a telescopic portable emergency lighting system. CNC machined aluminium section, drilled and black satin anodised.