Planetary Gearboxes

PAB High Precision and Torque Planetary Gearbox

A planetary gearbox, also introduced as an epicyclic gearbox, is one of the most interesting forms of device present within motion control. They are typically employed in automotive as an essential component of automatic transmission applications. Planetary Gearboxes are a form of the gearbox where the output and input both have the same center of turning. This means that the center of the input gear rotates around the center of the output section, and the output and input shafts are aligned.
The design of the planetary gearbox is relatively simple, including a central sun gear, an outer ring (also known as an internal gear since its tooth face inward), a carrier, and the planetary gears. Input power to the sun gear results in spinning. The mesh of planetary gears with the sun gear has a standard, and as the sun gear rotates based on this, so the planetary gears turn according to their axes.

As one of the leading planetary gearbox manufacturers, suppliers, and exporters of mechanical products, We offer planetary gearbox and many other products. Please get in touch with us for details.

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Overview of PAB Planetary Gearbox

PAB series high precision planetary gearboxes consist of a finished size of inline gearboxes, also called Coaxial gearboxes. There are three optional backlashes PAB planetary gearboxes for choice: Micro precision backlash (P0), precision backlash (P1), and standard backlash (P2), which are featured with outstanding performance and are widely applied in motion control industries for servo application. PAB precision gearboxes are featured with high torque, and the input stepper diameter D4 can be up toφ255mm, which can significantly meet the customer’s needs for increased torque. Single-stage planetary gearboxes and two-stage gearboxes for selection according to your application needs.

  • stage reduction ratio : 3, 4, 5, 6, 7, 8, 9, 10
  • Stage reduction ratio: 12, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80, 90, 100

Features of PAB Planetary Gearbox

  • Lowest backlash of 0-3 arcmin.
  • High torque and high dynamic.
  • High-cost performance.
  • Applicable for all servo motor and stepper motor.
  • Improve the rigidity and increase the motor rotor inertia.
  • Shorten the positioning time of starting and stopping
  • Miniaturization of motor power. At the same time, it improves the stability of the inertia load and reduces the vibration.
  • The surface of the gearbox is treated with electroless Nickel, and the connection plate is treated with the blue anode to improve the tolerance and corrosion resistance of the environment.

A planetary gearbox is a kind of reducer with wide versatility. The inner gear adopts low carbon alloy steel carburizing quenching and grinding or nitriding. A planetary gearbox has the characteristics of small structure size, large output torque, high-speed ratio, high efficiency, safe and reliable performance, etc. The inner gear of the planetary gearbox can be divided into spur gear and the helical gear. Customers can choose the right precision reducer according to the application’s needs.

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Application of PAB High Precision Planetary Gearbox:

PAB High Precision Planetary Gearboxes are extensively applied in the aviation industry, spaceflight, ship, radar, submarine, food machinery, medical machinery, women’s supplies machinery, and composite materials. Equipment, precision testing instruments, data communication system, robot, mechanical arm, CNC machine tool, cutting and welding equipment, laser system, textile machinery, printing and dyeing machinery, packaging machinery, printing machinery, testing machines, stamping technology, plastic machinery, glass machinery, lifting machinery, metallurgical machinery, engineering machinery, and University Scientific Research Institute and so on.

Configurations of PAB Planetary Gearbox

  • The housing and flange of the gearbox are made of Aluminum alloy die-casting ADC12
  • Planetary gear systems are made of high precision gears
  • The material of Ring Gearsis 40Cr
  • Planetary gears’ material of PAB precision gearbox is 20CrMnTi, the surface hardness value of PAB planetary reducer is about HRC58~62, and the inner hardness data is around HRC33~40
  • The input end of the gearbox is equipped with a motor adaptor and keyed hollow shaft.
  • Output configurations of PAB speed reducer are keyed solid shaft-output method, Keyless Solid Shaft Outputor output for holes. It depends on the specific needs of customers.
  • Applicable motorsare servo motors and stepper motors for all Japanese, German, Taiwan, or American brands.

Why Choose PAB Planetary Gearboxes for your precision application?

  • Finite element analysis of gear strength is carried out by using ANSYS technology. Tooth profile and lead trimming of tooth surface are also made to reduce the impact and noise of gear meshing and increase the service life of the gear system.
  • Carbon-nitridingheat-treated high-quality alloy steel is adopted in gear materials to obtain the best wear resistance and impact toughness.
  • The output planet carrier adopts an integral (double support) structure design. The large span of the front and rear bearings is distributed inside the box body, forming a stable integrated structure to ensure high torsion rigidity and accuracy.
  • The tooth ring and the output shell are integrated designs adopted, and high-quality steel is used to get high material density by hot forging. The integrated design can ensure that all geometric dimensions are finished at one time and have higher precision and strength compared with other embedded and clamped structures.
  • The input shaft and locking device are designed in an integrated way. The two bolts are symmetrically distributed to achieve dynamic balance. At the same time, through the strong locking of double bolts, the motor shaft transmission is effectively prevented from slipping, and the high-precision zero backlash power transmission is achieved.