They run quieter compared to the straight, especially at high speeds
They have an increased contact ratio (the amount of effective teeth engaged) than straight, which escalates the load carrying capacity
Their lengths are nice round numbers, e.g. 500.0 mm and 1,000.0 mm, for easy integration with machine bed lengths; Directly racks lengths are constantly a multiple of pi., electronic.g. 502.65 mm and 1005.31 mm.
A rack and pinion is a type of linear actuator that comprises a set of gears which convert rotational motion into linear movement. This mixture of Rack gears and Spur gears are usually known as “Rack and Pinion”. Rack and pinion combinations tend to be used as part of a simple linear actuator, where in fact the rotation of a shaft driven yourself or by a motor is changed into linear motion.
For customer’s that require a more accurate movement than ordinary rack and pinion combinations can’t provide, our Anti-backlash spur gears can be found to be utilized as pinion gears with our Rack Gears.

The rack product range contains metric pitches from module 1.0 to 16.0, with linear force capacities as high as 92,000 lb. Rack styles include helical, directly (spur), integrated and circular. Rack lengths up to 3.00 meters can be found standard, with unlimited travels lengths possible by mounting segments end-to-end.
Helical versus Directly: The helical style provides a number of key benefits more than the directly style, including:

These drives are perfect for a wide variety of applications, including axis drives requiring precise positioning & repeatability, touring gantries & columns, pick & place robots, CNC routers and material handling systems. Weighty load capacities and duty cycles may also be easily dealt with with these drives. Industries served include Materials Managing, Automation, Automotive, Aerospace, Machine Device and Robotics.

Timing belts for linear actuators are typically manufactured from polyurethane reinforced with internal steel or Kevlar cords. The most typical tooth geometry for belts in linear actuators is the AT profile, which includes a large tooth width that provides high resistance against shear forces. On the driven end of the actuator (where the electric motor is usually attached) a precision-machined toothed pulley engages with the belt, while on the non-driven end, a set pulley simply provides assistance. The non-powered, or idler, pulley can be often used for tensioning the belt, although some styles offer tensioning mechanisms on the carriage. The kind of belt, tooth profile, and applied tension force all determine the power which can be transmitted.
Rack and pinion systems used in linear actuators contain a rack (generally known as the “linear equipment”), a pinion (or “circular equipment”), and a gearbox. The gearbox helps to optimize the acceleration of the servo engine and the inertia match of the machine. One’s teeth of a rack and pinion drive can be straight or helical, although helical teeth are often used because of their higher load capacity and quieter operation. For rack and pinion systems, the maximum force which can be transmitted is definitely largely determined by the tooth pitch and how big is the pinion.
Our unique knowledge extends from the coupling of linear system components – gearbox, electric motor, pinion and rack – to outstanding system solutions. We offer linear systems perfectly designed to meet your unique application needs when it comes to the clean running, positioning precision and feed power of linear drives.
In the research of the linear movement of the gear drive mechanism, the measuring system of the apparatus rack is designed in order to gauge the linear error. using servo electric motor straight drives the gears on the rack. using servo motor directly drives the gear on the rack, and is dependant on the motion control PT point setting to understand the measurement of the Measuring range and standby control requirements etc. In the linear gearrack china process of the linear movement of the apparatus and rack drive system, the measuring data is certainly obtained utilizing the laser interferometer to measure the placement of the actual motion of the apparatus axis. Using the least square method to resolve the linear equations of contradiction, and to prolong it to any number of moments and arbitrary amount of fitting functions, using MATLAB programming to obtain the actual data curve corresponds with style data curve, and the linear positioning precision and repeatability of equipment and rack. This technology could be prolonged to linear measurement and data analysis of nearly all linear motion system. It may also be used as the basis for the automated compensation algorithm of linear movement control.
Comprising both helical & straight (spur) tooth versions, within an assortment of sizes, components and quality levels, to meet almost any axis drive requirements.