Gear racks are linear components with a toothed profile that, when paired with gears, convert rotational motion into linear motion (or vice versa), forming a rack-and-pinion transmission. Gear racks are used in metalworking equipment for carriage movement, in automatic gate opening and closing systems, for boom movement in lifting cranes, in rack railways, funiculars, elevators, and other types of equipment.
You can order custom gear rack manufacturing to individual specifications from New Standard.
Gear Racks | Main Classification
Gear racks can be classified by tooth shape, cross-sectional profile, manufacturing material, production accuracy, and application area.
Depending on the tooth shape, gear racks can be:
- Straight-tooth racks — the teeth are positioned perpendicular to the main axis of the rack. Such racks are used in industrial equipment and are characterized by simplicity of manufacture;
- Helical racks — the teeth are positioned at an angle relative to the main axis of the rack. Helical racks provide smoother and quieter meshing but are more complex to manufacture;
- Double-helical (herringbone) racks — the teeth have a V-shaped profile, ensuring high accuracy and smooth motion. Herringbone racks are mainly used in precision transmission systems.
Depending on the cross-sectional profile, gear racks can be square or round. Square racks are the most common, while round versions are used only in specific equipment and mechanisms. Gear racks can be manufactured from structural steel, stainless steel, or polymer materials. Steel racks feature high mechanical strength and a long service life. Plastic racks are low-cost, lightweight, and resistant to corrosion but have lower strength, especially when exposed to low or high temperatures. Variants made from aluminum alloys, bronze, and other non-ferrous metals are also used.
Depending on their functional purpose, gear racks are divided into two classes:
- Machine-tool racks — used in the design of lathes, milling machines, and other production equipment;
- Gate racks — standard products used for automatic sliding gate systems.
Custom Gear Rack Manufacturing
The main stages of manufacturing at the production company New Standard include:
- receiving the customer’s technical specification and performing a cost calculation — at this stage, the rack geometry, cross-section shape, dimensions, and number of teeth are defined, the manufacturing material is selected, and mechanical loads and other parameters are calculated;
- approval of the technical specification before launching production, with revisions made if necessary;
- material preparation — blanks are cut to size and pre-machined;
- tooth cutting using CNC milling and gear shaping machines;
- heat treatment — carried out at the customer’s request, significantly increasing the hardness and wear resistance of the gear racks;
- finishing operations — grinding, polishing, and other technical processes.
At all stages of production, the technical specialists of New Standard monitor quality and ensure compliance of the technological process with the requirements and standards of the design documentation. After manufacturing, the gear racks are delivered to the customer by courier services to any location within the country.