The tooth profile of the rack is a straight line rather than an involute (plane for the tooth surface), which is equivalent to a cylindrical gear with an infinite radius of the indexing circle. It is divided into straight rack and helical rack, which are matched with straight cylindrical gear and helical cylindrical gear respectively.
Rack assembly instructions
The rack can be installed to any length. During assembly, the clearance between two racks shall be adjusted to fit the tooth pitch. Locating pins are required to install the rack.
1st step position and tighten the rack.
The second step is to position the next rack with a reverse gear gauge.
The third step is to check each interface one by one and check the parallelism of the rack with a round bar.
It is used in printing machinery, drilling machine, woodworking machinery, servo motor power transmission, manual rocker arm, automatic working platform, packaging machinery and automatic machine tools.