An expanded line of miniature right angle drives manufactured by Stock Drive Products are now designed for fractional and sub-fractional horsepower applications. They are available from stock with inch or metric shafts and feature maintenance free operation. The A 2Z21 Series of compact drives are completely sealed and lubricated for the life of the unit. Three gear ratios, 1:1, 2:1, and 3:1 are offered, each with a choice of 4 or 6mm precision ground stainless steel shafts. These units have either two or three shaft positions and with clockwise or counter-clockwise shaft rotation. Units with hardened steel gears and ball bearing inputs are offered for larger torque applications while more economical units with nylon gears and sintered bronze bearings throughout are also featured. Mitre gears are used in the 1:1 ratio models and bevel gears for the 2:1 and 3:1 units. The fibreglass reinforced plastic moulded housings feature four standard mounting holes at each shaft position plus three holes in the housing. The compact housing measures approximately 50mm between mounting plates and is 62.5mm high.
