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A gear rack has straight teeth cut into one surface of a square or round section of rod and operates with a pinion, which is a small cylindrical gear meshing with the gear rack. Generally, gear rack and pinion are collectively called “rack and pinion”.
A gear rack, also known as a rack and pinion, is a type of linear motion mechanism that converts rotational motion into linear motion. It consists of a straight bar or rack with teeth along its length and meshes with a gear or pinion.
The gear rack is the linear counterpart of a spur gear. The teeth on the rack are typically straight and parallel to the direction of motion. When the gear or pinion meshes with the rack, the rotational motion of the gear is translated into linear motion along the rack.
Gear racks are commonly used in various applications where linear motion is required, such as in CNC machines, robotics, automotive steering systems, and lifting mechanisms. They provide a simple and efficient way to convert rotational motion to linear motion and are often preferred over other linear motion mechanisms due to their high precision, reliability, and ability to handle heavy loads.
To define a gear rack and customize it according to your needs, you typically need to determine the following parameters:
It’s important to consult with a gear rack manufacturer or supplier who can guide you through the customization process and help ensure that the gear rack meets your specific requirements and performance expectations.
Straight teeth rack is the most common type of rack, with straight teeth arranged in a straight line. It is used in conjunction with spur gears to convert rotational motion into linear motion or vice versa.
Helical rack has diagonally arranged helical teeth that are used in conjunction with helical gears. The combination of helical rack and helical gear has high transmission efficiency and low noise.
Round rack is a round rack with a grooved surface.
Linear guide rack is a specially designed rack that combines the functions of a rack and a linear guide. It has a grooved surface that can be used in conjunction with supporting linear guide components, providing linear motion and providing guidance and support functions.
Rack and pinion transmission is used in various transmission systems, such as conveyor belts, conveyor mechanisms, conveyors, and industrial machinery. They provide reliable transmission and positioning functions.
It is commonly used in automatic door systems, such as sliding doors, swing doors, and revolving doors. The rack converts rotational motion into linear motion, achieving automatic door opening and closing operation.
Computer numerical control (CNC) machine tools use rack and pinion transmission to control the movement of cutting tools and workpieces. The combination of rack and matching gears or worms achieves high-precision linear motion control.
Rack and gear transmission systems are widely used in elevator systems to convert the rotational motion of electric motors into vertical motion of elevators, achieving the rise and fall of floors.
The Greenhouse opening and closing system uses rack and pinion transmission to control the opening and closing operation of the top of the greenhouse. The combination of rack and gear or worm ensures smooth opening and closing of the roof of the greenhouse.
Rack and pinion transmission is widely used in robots and automation equipment to achieve various movements, such as joint motion, linear propulsion, and translational motion.