Racks are portions of a cylindrical disk with an infinite radius which includes involute shaped teeth cut into its face. Racks mate exclusively with spur gears that have the same module, pressure position and preferably face width. EVER-POWER offers equipment racks in many materials, configurations, modules and lengths. One unique feature of our racks is usually that most are supplied with finished ends. This type of production allows for multiple racks to become butted, end-to-end, to produce one continuous length of rack. Most of the products that people offer allow for secondary procedures such as reduction of the space, the adding of tapped holes, or the application of heat therapy. Our offering also contains products that have already had some of these secondary operations completed. The products are discovered by a “J” within their part number and they are available within 10 calendar days.
The straight tooth cylindrical gear for which the radius of the pitch cylinder is infinite and in a bar form is called a gear rack. If it’s sorted by the positions of the gear shafts, it belongs to the parallel shaft category. The spur equipment that meshes with a gear rack is normally called a pinion.
Besides gear racks with straight line teeth, there are helical racks which have slanted tooth. Helical gear racks are paired with helical gears, but due to the slant of the tooth path, as in helical gears, the mesh produces axial thrust forces.
Among the gear racks’ main applications are machine tools and transport devices and when the applications involve transmitting linear motions, they are often weighed against ball screws. In those cases, the main advantages of gear racks could be named this kind of as being able to fulfill a heavier load through the use of larger modules and having no duration limitation by connecting gear racks with completed ends. On the other hand, an example of the disadvantages of gear racks includes the occurrence of backlash.
When manufacturing gear racks, because of their bar shape, bending often outcomes. In these cases, corrective procedures using presses tend to be employed.
As for the kind of gear racks, aside from the usual bar shape, there are round racks where the cross sections are circular and flexible racks which may be bent into totally free curve shapes.
Racks Categories
EVER-POWER stock racks are made for high precision linear movement applications. You can expect a large selection of racks which range from module 0.5 to 10 and lengths from 100 to 2000 mm.
Hardened Surface Racks (MRGF – MRGFD)
Has the highest strength and precision in the EVER-POWER regular rack series. Bolt holes could be remachined as carburizing is definitely applied only within the tooth area. J Series items are also available.
Hardened Ground Racks (KRGF-H – KRGFD-H)
Heat treated ground gears with high precision and strength has exceptional cost-performance ratio. J Series products are also available.
Steel Racks (SR)
Low cost, large selections of modules and quantity of teeth. J Series products are also available.
STAINLESS Racks (SUR·SURF·SURFD)
Suitable for food machinery because of SUS304 material\’s rust-resistant quality.
Brass Racks (BSR)
Small pitch racks manufactured from free-cutting brass, exceptional workability and high rust resistance.

Gear racks
Gear racks are used to convert rotating movement into linear movement. A equipment rack has straight teeth cut into one surface of a sq . or round portion of rod and operates with a pinion, which can be a small cylindrical gear meshing with the apparatus rack. Generally, gear rack and pinion are collectively known as “rack and pinion”. There are plenty of methods to use gears. For instance, as demonstrated in the picture, a equipment is used with the gear rack to rotate a parallel shaft.
To provide many variants of rack and pinion, Ever-power has various kinds of equipment racks in stock. If the application requires a long size requiring multiple equipment racks in series, we have racks with the tooth forms correctly configured at the ends. These are described as “equipment racks with machined ends”. Whenever a equipment rack is produced, the tooth cutting process and heat treatment process could cause it to try & walk out true. We can control this with unique presses & remedial processes.
There are applications where in fact the gear rack is stationary, while the pinion traverses and others where in fact the pinion rotates upon a fixed axis while the gear rack moves. The previous is used widely in conveying systems while the latter can be used in extrusion systems and lifting/lowering applications.
As a mechanical element to transfer rotary into linear movement, gear racks tend to be in comparison to ball screws. There are benefits and drawbacks for using racks instead of ball screws. The benefits of a gear rack are its mechanical simplicity, large load carrying capacity, and no limit to the length, etc. One drawback though may be the backlash. The benefits of a ball screw are the high precision and lower backlash while its shortcomings include the limit in length due to deflection.
Rack and pinions are used for lifting mechanisms (vertical movement), horizontal movement, positioning mechanisms, stoppers and to permit the synchronous rotation of a number of shafts generally industrial machinery. However, they are also found in steering systems to improve the direction of cars. The features of rack and pinion systems in steering are the following: simple structure, high rigidity, little and lightweight, and excellent responsiveness. With this system, the pinion, installed to the steering shaft, is definitely meshed with a steering rack to transmit rotary movement laterlly (converting it to linear motion) so that you can control the wheel. In addition, rack and pinions are utilized for various other purposes, such as playthings and lateral slide gates.
Manufacturer Place your purchase directly to the factory, simply no intermediate cost, more fast delivery ,better service and economical cost.
Strict QC inspection Top quality is top important during cooperation. We can make QC inspection strictly before ship out to make sure every piece stayed in an excellent condition. If any complications made by us after you received cases after that we will full accountable to compensate you. Steady Supply As a producer with strong ability for phone cases production, we have enough stock to meet your needs.
Gear rack, when used in combination with spur gears, converts rotary movement into linear motion. Gear rack from Ever-power is designed to operate with our share 14 1/2° and 20° PA spur gears.
Often, gear rack is modified to fit specific applications. This may include drilling and tapping installation holes, cutting to specific lengths or complementing ends of two pieces of rack to make a continuous duration longer than stock.
· Ever-power’s gear rack comes in 14 1/2° and 20° PA to suit a wide selection of application requirements.
· Stocked in 4ft and 6ft lengths
· The choice of 48 to 3 DP meets an equally different array of needs.
· Length tolerance enables ends to be matched for easy modification.
· Our in-share inventory of nylon, and steel ensures availability – and compatibility.
· Because it is perfectly matched to Ever-power’s spur gears, our equipment rack promises superior efficiency.
Gear Racks – Adjustments Rotational Motion into Linear Motion