YYC (Yuan Yi Chang Machinery Co, Ltd) Precision Racks and Pinions Available :- Rack for Translation only Milled Din 8, Mod 1 - 10 Rack for Fast Translation Milled + Hardened Din 8 - 9, Mod 1 - 10 Ground Rack for Positioning only Ground Din 6, Mod 2 - 10 Ground Rack for Fast positioning Ground + Hardened Din 6, Mod 2 - 10 A rack and pinion is a type of linear actuator that comprises a pair of gears which convert rotational motion into linear motion. A circular gear called "the pinion" engages teeth on a linear "gear" bar called "the rack"; rotational motion applied to the pinion causes the rack to move relative to the pinion, thereby translating the rotational motion of the pinion into linear motion. For example, in a rack railway, the rotation of a pinion mounted on a locomotive or a railcar engages a rack between the rails and forces a train up a steep slope. For every pair of conjugate involute profile, there is a basic rack. This basic rack is the profile of the conjugate gear of infinite pitch radius (i.e. a toothed straight edge. A generating rack is a rack outline used to indicate tooth details and dimensions for the design of a generating tool, such as a hob or a gear shaper cutter Precision Racks and Pinions Dealer Distributor Suppliers Stockist In Kolkata Mumbai Delhi Chennai Bangalore Hosur Mysore.