Catalog No. SI SIR
Module 0.5 ~ 3 2 ~ 3
Material S45C S45C
Heat Treatment
Tooth Surface Finish Cut Cut
Precision JIS B 1702-1:1998 N8Note 1 N9
Secondary Operations Possible Possible
Features A popular type of internal gear; low cost and suitable for many applications. Ring gear large in size / number of tooth. It can be cut to make segment gears and corner racks.

Inner gears, also recognized as ring gears, have the very same requirements as an external gear except that the enamel are lower into the inside of diameter while the exterior is sleek. Internal gears can offer a compact resolution that provides considerable pace reductions and decreased sliding dress in motion, meaning you are going to get enhanced longevity. When it is essential to have 2 parallel shafts rotate in the exact same route, inner gears remove the require for an loafer equipment. Inside gears can be applied in a broad selection of equipment and apps.

A special characteristic of spur and helical gears is their ability of becoming manufactured in an interior sort, in which Inner Equipment mates with ordinary exterior equipment. This gives considerable flexibility in the design and style of planetary gear trains and miscellaneous instrument packages. Benefits of an inner gear are the pursuing:

one) Effectively suited to compact style considering that the center length is considerably less than for exterior gears.
2) A substantial get in touch with ratio is attainable.
3) Excellent surface endurance because of to a convex profile surface area working towards a concave surface area.

Inside Gears: Technological Info

HZPT inventory inside gears are offered in modules .5 to 3 in 50 to 2 hundred enamel. They can be used in many programs which includes planetary gear drives.

Notice 1: The Solution accuracy class possessing a module much less than .8 corresponds to ‘equivalent’ as proven in the desk.

Choice Hints

Remember to pick the most suited goods by cautiously contemplating the qualities of objects and contents of the merchandise tables. It is also critical to read through all relevant notes just before the final variety.

1. Warning in Selecting Mating Gears
HZPT stock interior gears can mate with any spur gears of the same module, even so, there are circumstances of involute, trochoid and trimming interference occurrences, dependent on the variety of teeth of the mating gear. Various varieties of interference and their symptoms and brings about are tabulated underneath, also revealed, the quantity of tooth of allowable mating pinions.

Interferences and the Symptoms


How are internal gears created?

Internal gears are developed making use of a pinion cutter and a shaping procedure. Exterior gears are formed primarily by hobbing, milling, and shaping with a rack cutter. Even so, other equipment chopping strategies these kinds of as punching, etching, and laser engraving might be utilized in some situations.

The initial phase in the manufacturing approach is to decide on a substance for the gear teeth. These supplies consist of metal, aluminum, plastic, wooden, and other individuals. Every single has rewards and drawbacks that make 1 material or yet another greater suited for distinct apps.

Following, the geometry of the gear enamel is minimize into the selected substance making use of a equipment cutting equipment. The depth of the reduce establishes the number of teeth on the equipment wheel. Every single time the gear slicing machine cuts into the substance, it leaves a layer of waste content called “dross” that should be taken off from the tooth’s surface area just before it will supply ample security against wear and tear.

Right after the enamel have been lower, they need to have to be polished to remove any remaining trash and give them a sleek finish. This is normally carried out by hand utilizing a slurry of oil and h2o or on your own as a lubricant. The gears are rotated against a CZPT plate with various pressure to achieve the sought after finish.

Programs of Inside Gears

  • Rollers
  • Electric powered Screwdrivers
  • Pumps
  • Positioning Gear
  • Automotives
  • Bicycle components
  • Planetary gear drives

How to Maximize Gear Motor Reliability

A gearmotor is a mechanical device used to transmit torque from 1 location to another. As its name implies, it is designed to rotate 1 object relative to another. Its main use is to transmit torque from 1 point to another. The most common types of gear motors are: worm, spur, and helical. Each of these has specific functions and can be used for a variety of applications. Reliability is also an important factor to consider when choosing a gearmotor.

Applications of a gear motor

Despite its small size, a gear motor has many applications. These include heavy machinery lifts, hospital beds, and power recliners. It is also found in many everyday products, such as electromechanical clocks and cake mixers. Its versatility allows it to produce a high force from a small electric motor. Here are some of its most common uses. You can also find a gear motor in many household appliances and vehicles.
Before selecting a gearmotor, consider the specifications of the machine you need to power. You should consider its size, weight, and ambient conditions, which include temperature regimes, noise levels, and contaminating sources. You should also take into account the envelope size, mounting method, and orientation. Other considerations include the expected service life, maintenance scope, and control type. The most suitable gearmotor for your specific application will be 1 that can handle the load.
The motor and gearbox types can be mixed and matched, depending on the application. A 3-phase asynchronous motor and a permanent magnet synchronous servomotor are common choices for these devices. The type of motor and gearbox combination you choose will determine the power supply, the efficiency of the motor, and cost. Once you understand the application, it will be easy to integrate a gear motor into your system.
When used in industrial applications, gear motors are effective for reducing the speed of rotating shafts. One third of all industrial electric motor systems use gearing to reduce output speed. They can also save energy, which benefits the workers who operate them. In fact, industrial electric motor systems are responsible for nearly 1-10th of the carbon dioxide emissions that are produced by fossil-fueled power plants. Fortunately, efficiency and reliability are just 2 of the benefits of using gear motors.


Before choosing a gearmotor, it is important to understand its specifications. The key factors to consider are the size, weight, and noise level of the gearmotor. Additionally, the power, torque, and speed of the motor are important factors. Specifications are also important for its operating environment, such as the temperature and the level of ingress protection. Finally, it is important to determine its duty cycle to ensure it will operate properly. To choose a suitable gearmotor, consult the specifications of your application.
Some common applications of gearmotors include packaging equipment, conveyors, and material handling applications. They also come with several advantages, including their ability to control both position and speed. This makes them ideal for applications where speed and positioning are crucial. Parallel-shaft gear units, for instance, are commonly used in conveyors, material handling, and steel mills. They are also able to operate in high-precision manufacturing. For these reasons, they are the most popular type of gearmotor.
There are 3 common types of gears. Helical gears have teeth that are inclined at 90 degrees to the axis of rotation, making them more efficient. Helicoidal gears, meanwhile, have a lower noise level and are therefore preferred for applications requiring high torque. Worm gears are preferred for applications where torque and speed reduction are important, and worm gears are suited for those conditions. They also have advantages over spur gears and worm gears.
The application of a gear motor is almost limitless. From heavy machine lifts to hospital bed lifting mechanisms, gear motors make it possible to use a small rotor at a high speed. Their lightweight construction also allows them to move heavy loads, such as cranes, but they do so slowly. Gear motors are an excellent choice in applications where space is an issue. A few common applications are discussed below. When choosing a gear motor, remember to choose the best size and application for your needs.


A gearmotor’s speed is directly proportional to the gear ratio. By dividing the input speed by the gear ratio, the output speed can be determined. Gear ratios above 1 reduce speed, while gear ratios below 1 increase speed. Efficiency of a gearmotor is defined as its ability to transfer energy through its gearbox. This efficiency factor takes into account losses from friction and slippage. Most gearmotor manufacturers will provide this curve upon request.
There are several factors that must be considered when choosing a gearmotor. First, the application must meet the desired speed and torque. Second, the output shaft must rotate in the desired direction. Third, the load must be properly matched to the gearmotor. Lastly, the operating environment must be considered, including the ambient temperature and the level of protection. These details will help you find the perfect gearmotor. You can compare various types of gear motors on this page and choose the 1 that will meet your needs.
The micro-DC gear motor is 1 of the most versatile types of geared motors. These motors are widely used in intelligent automobiles, robotics, logistics, and the smart city. Other applications include precision instruments, personal care tools, and cameras. They are also commonly found in high-end automotives and are used in smart cities. They also find use in many fields including outdoor adventure equipment, photography equipment, and electronics. The benefits of micro-DC gear motors are many.
The main function of a gear motor is to reduce the speed of a rotating shaft. Small electric clocks, for example, use a synchronous motor with a 1,200-rpm output speed to drive the hour, minute, and second hands. While the motor is small, the force it exerts is enormous, so it’s crucial to ensure that the motor isn’t over-powered. There is a high ratio between the input torque and the output torque.


The reliability of a gear motor is dependent on a number of factors, including material quality, machining accuracy, and operating conditions. Gear failure is often more serious than surface fatigue, and can compromise personal safety. Reliability is also affected by the conditions of installation, assembly, and usage. The following sections provide an overview of some important factors that impact gear motor reliability. This article provides some tips to maximize gear motor reliability.
First and foremost, make sure you’re buying from a reliable supplier. Gear motors are expensive, and there is no standardization of the sizes. If a gear breaks, replacing it can take a lot of time. In the long run, reliability wins over anything. But this doesn’t mean that you can ignore the importance of gears – the quality of a gear motor is more important than how long it lasts.


The cost of a gear motor is relatively low compared to that of other forms of electric motors. This type of motor is commonly used in money counters, printers, smart homes, and automation equipment. A DC gear motor is also commonly used in automatic window machines, glass curtain walls, and banknote vending machines. There are many advantages to using a gear motor. Here are a few of them. Read on to learn more about them.
Speed management is another benefit of a gear motor. The motors 10d to have less wear and tear than other motors, which means less frequent replacements. Additionally, many gear motors are easy to install and require less maintenance, which also helps reduce the overall cost of ownership. Lastly, because noise is a common concern for many electronic OEMs, DC gear motors are often quieter than their counterparts. For these reasons, they are often used in industrial settings.
Another advantage of an electric gear motor is its size and power. They are typically designed for 12V, 24V, and 48V voltages and 200-watt power. Their rated speed is 3000 rpm and their torque is 0.64 Nm. They are also more reliable than their AC counterparts and are ideal for many industrial applications. They have a high ratio of 3 to 2, which makes them ideal for a variety of applications.
A gear motor is an electric motor that is coupled with a gear train. It uses AC or DC power, and is often called a gear reducer. The main purpose of these gear reducers is to multiply torque, while maintaining compact size and overall efficiency. However, the efficiency of a gear motor is also affected by ambient temperature and lubricants. If the gear motor is installed in the wrong location, it may be ineffective and result in premature failure of the machine.

Brass Worm Gear

As one of the brass worm gear manufacturers, suppliers, and exporters of mechanical products, We offer brass worm gears and many others.

Please get in touch with us for details.

Manufacturer supplier exporter of brass worm gear.

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