These planetary gearboxes boast unparalleled precision, strength, durability, and speed, making them ideal for a wide range of servo applications. The SMD planetary solutions represent the cutting edge in planetary technology, delivering unmatched accuracy, torque, and low noise operation thanks to their optimally designed gearing. Additionally, the straddle-mounted high-precision bearings allow for exceptional radial and axial load capabilities.

High-Performance Planetary Gearboxes with High-Precision Bearings

SPS SERIES

Planetary reducer with square output mount

SPR SERIES

Planetary reducer with round output mount

SPF SERIES

Planetary reducer with disk "flange" output

SPS SERIES

Planetary reducer with square output mount

1. When the output speed is 100 rpm, the load acts on the center of the output shaft.

2. The smaller the reduction ratio or the higher the speed, the greater the noise value. (3000 rpm, no load, reduction ratio=10)

3. The service life of continuous operation is 10,000 hours.

   Note: The 100 ratio uses the three-stage (L3) style, and the strength is better than the two-stage (L2).

SPR SERIES

Planetary reducer with square output mount

1. When the output speed is 100 rpm, the load acts on the center of the output shaft.

2. The smaller the reduction ratio or the higher the speed, the greater the noise value. (3000 rpm, no load, reduction ratio=10)

3. The service life of continuous operation is 10,000 hours.

   Note: The 100 ratio uses the three-stage (L3) style, and the strength is better than the two-stage (L2).

SPF SERIES

Planetary reducer with disk "flange" output

1. When the output speed is 100 rpm, the load acts on the center of the output shaft.

2. The smaller the reduction ratio or the higher the speed, the greater the noise value. (3000 rpm, no load, reduction ratio=10)

3. The service life of continuous operation is 10,000 hours.

   Note: The 100 ratio uses the three-stage (L3) style, and the strength is better than the two-stage (L2).

Planetary Gearbox Explained

A planetary reducer with spur gears, also known as a planetary gear system or simply a planetary gearbox, is a type of gear arrangement used for speed reduction or torque amplification in various mechanical systems. It consists of several gears working together to achieve the desired output.

Here's how a planetary reducer with spur gears typically works:

Structure: The planetary reducer consists of three main components: a central sun gear, multiple planet gears, and an outer ring gear. These gears are arranged in a specific configuration, with the planet gears evenly spaced around the sun gear and meshing with both the sun gear and the ring gear.

Sun Gear: The sun gear is positioned at the center and is usually connected to the input shaft. It is called the sun gear because it is located at the "center" of the planetary system, similar to how the sun is at the center of our solar system.

Planet Gears: Multiple planet gears surround the sun gear and are typically mounted on a carrier or arm. These gears mesh with both the sun gear and the ring gear. The number of planet gears can vary depending on the specific design.

Ring Gear: The outer ring gear is the largest gear in the system and encircles the planet gears. It meshes with the planet gears and provides the output connection for the gearbox. The ring gear is usually fixed to the gearbox housing or frame.

Gear Meshing: As the sun gear rotates, it drives the planet gears. The planet gears, in turn, mesh with both the sun gear and the ring gear. This arrangement creates multiple points of contact and distributes the load among the gears, resulting in higher torque capacity and smoother operation.

Speed Reduction/Amplification: By varying the size and number of teeth on the gears, the planetary reducer can achieve different speed reduction or torque amplification ratios. The output at the output shaft is typically taken from the plant gears rotating and turning around the ring gear, which rotates at a different speed than the input shaft.

Advantages: Planetary gear systems offer several advantages, including compact size, high torque capacity, and the ability to achieve different gear ratios within a single gearbox. They are commonly used in various applications, such as automotive transmissions, robotics, industrial machinery, and even in some watches.

Overall, a planetary reducer with spur gears provides an efficient and reliable method for achieving speed reduction or torque amplification, making it a popular choice in many mechanical systems.