Tag Archives: 12v dc gear motor

China DC 12V 200rpm Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 25mm Diameter Gearbox cycloidal gearbox

Item Description

DC 12V 200RPM Equipment Motor Large Torque Electrical Micro Velocity Reduction Geared Motor Centric Output Shaft 25mm Diameter Gearbox

1)Item Description:
1°size:Diameter 25mm 
    2°lifespan:2000 hours 
    3°gear material: plastic or brass
    4°IP fee:IP54
2)Motor Specification:

Sort DC 12V 24V Plantary Equipment Motor
Motor  Diameter  25mm
Voltage 12v 24v
Electricity ≤1.2W
Torque ≤0.8N.M
Velocity ≤200RPM
Substance of gear Plastic or Brass
OEM/ODM Provider Accept
Use Electric top adjustable table ,electric powered forklift ,vending macine,car garage door opener,sweeper,vacuum cleaner,industrial equipment,other electrical equipment .

three)Drawing of Motor:   

4)Drawing of shaft impression:

3)Packing particulars:

4)Manufacturing unit present:

5)Transfer way:




Q: Are you trading firm or producer ?

A: We are Integration of sector and trade, with more than 20 a long time expertise in DC worm equipment motor. Our organization have gathered skilled production line, full administration and powerful analysis assistance, which could match all of the customers’ demands and make them satisfaction.

Q: What is your main product?

DC Motor: Equipment motor, Sq. motor, Stepped motor, and Micro motor
-Welding equipment: Wire feeder, Welding rod, Welding Torch, Earth clamp, Electrode holder, and Rectifier

Q: What if I will not know which DC motor I want?

A: Will not fear, Deliver as much information as you can, our group will aid you find the proper 1 you are seeking for.

Q: What is your terms of payment ?

A: Payment=1000USD, 30% T/T in advance ,balance just before shippment.
If you have one more issue, pls come to feel cost-free to contact us as beneath:

Q: How to supply:

A: By sea – Consumer appoint forwarder, or our sales staff find suited forwarder for customers. 

By air – Customer offer acquire categorical account, or our product sales staff find ideal express for purchasers. (Primarily for sample)
Other people – Really,samples send by DHL,UPS, TNT and Fedex and so on. We organize to supply items to some spot from China appointed by buyers.

Q: How long is your shipping and delivery time?
A: Generally it is 5-10 times if the goods are in stock. or it is fifteen-20 days if the items are not in inventory, it is according to quantity.

8) Get in touch with data:










Shipping Cost:

Estimated freight per unit.

To be negotiated|

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Application: Industrial, Household Appliances, Power Tools
Operating Speed: Constant Speed
Excitation Mode: Excited


US$ 10/Piece
1 Piece(Min.Order)


Order Sample




Type DC 12V 24V Plantary Gear Motor
Motor  Diameter  25mm
Voltage 12v 24v
Power ≤1.2W
Torque ≤0.8N.M
Speed ≤200RPM
Material of gear Plastic or Brass
OEM/ODM Service Accept
Usage Electric height adjustable table ,electric forklift ,vending macine,auto garage door opener,sweeper,vacuum cleaner,industrial machine,other electric tools .
Shipping Cost:

Estimated freight per unit.

To be negotiated|

Freight Cost Calculator


Application: Industrial, Household Appliances, Power Tools
Operating Speed: Constant Speed
Excitation Mode: Excited


US$ 10/Piece
1 Piece(Min.Order)


Order Sample




Type DC 12V 24V Plantary Gear Motor
Motor  Diameter  25mm
Voltage 12v 24v
Power ≤1.2W
Torque ≤0.8N.M
Speed ≤200RPM
Material of gear Plastic or Brass
OEM/ODM Service Accept
Usage Electric height adjustable table ,electric forklift ,vending macine,auto garage door opener,sweeper,vacuum cleaner,industrial machine,other electric tools .

What Is a Gearbox?

There are several factors to consider when choosing a gearbox. Backlash, for example, is a consideration, as it is the angle at which the output shaft can rotate without the input shaft moving. While this isn’t necessary in applications without load reversals, it is important for precision applications involving load reversals. Examples of these applications include automation and robotics. If backlash is a concern, you may want to look at other factors, such as the number of teeth in each gear.

Function of a gearbox

A gearbox is a mechanical unit that consists of a chain or set of gears. The gears are mounted on a shaft and are supported by rolling element bearings. These devices alter the speed or torque of the machine they are used in. Gearboxes can be used for a wide variety of applications. Here are some examples of how gearboxes function. Read on to discover more about the gears that make up a gearbox.
Regardless of the type of transmission, most gearboxes are equipped with a secondary gear and a primary one. While the gear ratios are the same for both the primary and secondary transmission, the gearboxes may differ in size and efficiency. High-performance racing cars typically employ a gearbox with two green and one blue gear. Gearboxes are often mounted in the front or rear of the engine.
The primary function of a gearbox is to transfer torque from one shaft to another. The ratio of the driving gear’s teeth to the receiving member determines how much torque is transmitted. A large gear ratio will cause the main shaft to revolve at a slower speed and have a high torque compared to its counter shaft. Conversely, a low gear ratio will allow the vehicle to turn at a lower speed and produce a lower torque.
A conventional gearbox has input and output gears. The countershaft is connected to a universal shaft. The input and output gears are arranged to match the speed and torque of each other. The gear ratio determines how fast a car can go and how much torque it can generate. Most conventional transmissions use four gear ratios, with one reverse gear. Some have two shafts and three inputs. However, if the gear ratios are high, the engine will experience a loss of torque.
In the study of gearbox performance, a large amount of data has been collected. A highly ambitious segmentation process has yielded nearly 20,000 feature vectors. These results are the most detailed and comprehensive of all the available data. This research has a dual curse – the first is the large volume of data collected for the purpose of characterization, while the second is the high dimensionality. The latter is a complication that arises when the experimental gearbox is not designed to perform well.


The main function of a gearhead is to multiply a moment of force and create a mechanical advantage. However, backlash can cause a variety of issues for the system, including impaired positioning accuracy and lowered overall performance. A zero backlash gearbox can eliminate motion losses caused by backlash and improve overall system performance. Here are some common problems associated with backlash in gearheads and how to fix them. After you understand how to fix gearbox backlash, you’ll be able to design a machine that meets your requirements.
To reduce gearbox backlash, many designers try to decrease the center distance of the gears. This eliminates space for lubrication and promotes excessive tooth mesh, which leads to premature mesh failure. To minimize gearbox backlash, a gear manufacturer may separate the two parts of the gear and adjust the mesh center distance between them. To do this, rotate one gear with respect to the fixed gear, while adjusting the other gear’s effective tooth thickness.
Several manufacturing processes may introduce errors, and reducing tooth thickness will minimize this error. Gears with bevel teeth are a prime example of this. This type of gear features a small number of teeth in comparison to its mating gear. In addition to reducing tooth thickness, bevel gears also reduce backlash. While bevel gears have fewer teeth than their mating gear, all of their backlash allowance is applied to the larger gear.
A gear’s backlash can affect the efficiency of a gearbox. In an ideal gear, the backlash is zero. But if there is too much, backlash can cause damage to the gears and cause it to malfunction. Therefore, the goal of gearbox backlash is to minimize this problem. However, this may require the use of a micrometer. To determine how much gearbox backlash you need, you can use a dial gauge or feeler gauge.
If you’ve been looking for a way to reduce backlash, a gearbox’s backlash may be the answer. However, backlash is not a revolt against the manufacturer. It is an error in motion that occurs naturally in gear systems that change direction. If it is left unaccounted for, it can lead to major gear degradation and even compromise the entire system. In this article, we’ll explain how backlash affects gears and how it affects the performance of a gearbox.


The design of gearboxes consists of a variety of factors, including the type of material used, power requirements, speed and reduction ratio, and the application for which the unit is intended. The process of designing a gearbox usually begins with a description of the machine or gearbox and its intended use. Other key parameters to consider during gearbox design include the size and weight of the gear, its overall gear ratio and number of reductions, as well as the lubrication methods used.
During the design process, the customer and supplier will participate in various design reviews. These include concept or initial design review, manufacturing design validation, critical design review, and final design review. The customer may also initiate the process by initiating a DFMEA. After receiving the initial design approval, the design will go through several iterations before the finalized design is frozen. In some cases, the customer will require a DFMEA of the gearbox.
The speed increaser gearboxes also require special design considerations. These gearboxes typically operate at high speeds, causing problems with gear dynamics. Furthermore, the high speeds of the unit increase frictional and drag forces. A proper design of this component should minimize the effect of these forces. To solve these problems, a gearbox should incorporate a brake system. In some cases, an external force may also increase frictional forces.
Various types of gear arrangements are used in gearboxes. The design of the teeth of the gears plays a significant role in defining the type of gear arrangement in the gearbox. Spur gear is an example of a gear arrangement, which has teeth that run parallel to the axis of rotation. These gears offer high gear ratios and are often used in multiple stages. So, it is possible to create a gearbox that meets the needs of your application.
The design of gearboxes is the most complex process in the engineering process. These complex devices are made of multiple types of gears and are mounted on shafts. They are supported by rolling element bearings and are used for a variety of applications. In general, a gearbox is used to reduce speed and torque and change direction. Gearboxes are commonly used in motor vehicles, but can also be found in pedal bicycles and fixed machines.


There are several major segments in the gearbox market, including industrial, mining, and automotive. Gearbox manufacturers are required to understand the application and user industries to design a gearbox that meets their specific requirements. Basic knowledge of metallurgy is necessary. Multinational companies also provide gearbox solutions for the power generation industry, shipping industry, and automotive industries. To make their products more competitive, they need to focus on product innovation, geographical expansion, and customer retention.
The CZPT Group started as a small company in 1976. Since then, it has become a global reference in mechanical transmissions. Its production range includes gears, reduction gearboxes, and geared motors. The company was the first in Italy to achieve ISO certification, and it continues to grow into one of the world’s leading manufacturers of production gearboxes. As the industry evolves, CZPT focuses on research and development to create better products.
The agriculture industry uses gearboxes to implement a variety of processes. They are used in tractors, pumps, and agricultural machinery. The automotive industry uses gears in automobiles, but they are also found in mining and tea processing machinery. Industrial gearboxes also play an important role in feed and speed drives. The gearbox industry has a diverse portfolio of manufacturers and suppliers. Here are some examples of gearboxes:
Gearboxes are complex pieces of equipment. They must be used properly to optimize efficiency and extend their lifespan. Manufacturers employ advanced technology and strict quality control processes to ensure their products meet the highest standards. In addition to manufacturing precision and reliability, gearbox manufacturers ensure that their products are safe for use in the production of industrial machinery. They are also used in office machines and medical equipment. However, the automotive gearbox market is becoming increasingly competitive.

China DC 12V 200rpm Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 25mm Diameter Gearbox     cycloidal gearbox	China DC 12V 200rpm Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 25mm Diameter Gearbox     cycloidal gearbox
editor by czh 2022-12-25

China Professional Hot Sale Spur Gear Speed Reducer 3v 6v 12v 24v DC GEAR MOTOR with gearbox with Hot selling

Model Number: 12/16/20/25/37/48/59
Voltage(V): 3v-24v
Output Power: 5-180W
Usage: BOAT, Car, Electric Bicycle, FAN, Home Appliance, Industrial equipment
Type: Micro Motor
Torque: 100-1800g.cm
Construction: Permanent Magnet
Commutation: Brush
Protect Feature: Drip-proof
Speed(RPM): Accept customization
Continuous Current(A): 0.3-10A
Efficiency: IE 1
Certification: ce, RoHS
Diameter of Motor with gearboxes: 37mm
Motor type: DC motor
Brush Type: carbon brush/metal brush
Motor Torqe: high torque
voltage: 3v 6v 9v 12v 24v
Gear Motor speed: 1 to 1500rpm
Motor power: dc
Motor shaft: D shaft, Round shaft, Hot sale Aluminum NMRV series Worm Gear Gearbox worm reduction gearbox nema stepper motor 150cc reverse gearbox Dual shaft
DC Motor type: 12GF/16GA/20GA/25GA/37GB/
Packaging Details: Blister/ Foam box/ Carton box/ Wooden pallet
Port: HangZhou

Hot Sale Spur Gear Speed Reducer 6v 12v 24v DC GEAR MOTOR with gearboxes

1.6V9V12V24V 37mm 37GB528 Spur DC Gear Motor
2.CE Rohs Micro DC Gear Motor
3.37mm 6v 12v 24v DC Motors Spur Gear Speed Reducer
4.DC Motor with gearboxes 12v 24v

CODE Voltage No-load Rated Stall
Rated Speed Current Speed Current Torque Power Torque Current
VDC r/min A r/min A Kg.cm W Kg.cm A
IT-12GFN20-210 3 35 0.035 27 0.08 0.25 0.07 1.2 0.25
IT-12GFN20-100 3 110 0.05 90 0.15 0.14 0.13 1 0.65
IT-12GFN20-50 3 50 0.06 40 0.25 0.4 0.17 2.2 1
IT-12GFN20-298 4.5 52 0.045 41 0.165 0.4 0.17 1.8 0.62
IT-16GA030-100 3 70 0.06 52 0.17 0.3 0.16 0.08 0.45
IT-16GA030-300 6 35 0.06 25 0.18 0.7 0.18 4 0.5
IT-16GA050-33 12 350 0.05 290 0.17 0.15 0.45 1 0.7
IT-16GA050-50 12 230 0.02 180 0.17 0.24 0.45 1.5 0.7
IT-16GA050-100 12 110 0.04 85 0.12 0.48 0.42 2.5 0.4
IT-20GA130-10 12 1300 0.1 1000 0.35 0.15 1.5 0.8 1.5
IT-20GA130-31 12 290 0.04 220 0.12 0.22 0.49 0.91 0.41
IT-20GA130-62 12 140 0.06 100 0.2 0.4 0.4 2.5 0.5
IT-20GA130-250 12 30 0.04 24 0.11 1.5 0.37 7.5 0.47
IT-20GA180-488 12 9 0.04 7 0.09 3.5 0.25 8 0.5
IT-20GA180-78 12 83 0.03 67 0.12 0.84 0.58 4.6 0.52
IT-25GA300-103 6 65 0.08 50 0.16 0.25 0.13 1.5 0.6
IT-25GA300-226 6 30 0.08 24 0.16 6.5 0.12 6.5 0.6
IT-25GA310-35 3 70 0.05 55 0.1 0.14 0.08 0.8 0.4
IT-25GA310-103 6 40 0.03 30 0.07 0.3 0.1 2 0.3
IT-25GA370-103 12 54 0.05 46 0.2 1.9 0.9 13.5 1.2
IT-25GA370-103 12 85 0.1 65 0.4 1.6 1.1 7 1.5
IT-25GA370-165 12 22 0.03 18 0.1 2 0.37 11 0.46
IT-25GA370-226 12 38 0.1 30 0.5 3.2 1 15 1.5
IT-37GB520-50 24 125 0.045 100 0.15 2 2.1 10 0.7
IT-37GB520-490 24 12 0.045 11 0.1 10 1.2 40 0.7
IT-37GB520-270 12 11 0.571 9 0.1 6 0.5 30 0.4
IT-37GB528-210 24 32 0.04 25 0.2 6.3 1.6 30 1
IT-37GB528-270 24 20 0.045 18 0.15 8 1.5 60 0.8
IT-48GE520-450 24 13 0.06 10 0.4 15 1.5 25 1.2
IT-48GE520-225 12 47 0.12 38 0.6 7 2.7 45 2.5
IT-48GE520-105 6 35 0.04 26 0.18 2 0.53 7 0.6

1)gearbox diameter:12MM/16MM/20MM/25MM/37mm
2)metal /carbon brush dc motor
3)low noise ,high qua
4)match motor:12GF/16GA/20GA/25GA/37GB/
RF-520 and RF-528 and RS-540 and RS-545 and RS-550 and RS-555
motor size :dia 33mm L:23mm ; dia:33mm L:30mm
motor size :dia 35mm L:25mm ; dia:35mm L:30mm
motor size :dia 35.8mm L:50mm ; dia:35.8mm L:50mm
motor size :dia 35.8mm L:57mm ; dia:35.8mm L:57mm
5)direction :CW & CCW
6)Certificate :CE ,ROHS, High Quality Parallel Shaft Parallel Shaft Speed Gearbox Reducer With Motor ISO
7)motors specification and shaft length can be tailed-made according to customer’s requirements



Company Information

ITO TECH/ NEWTHINKG MOTOR is a professional motor manufacturer. It locates in HangZhou city, and covers an area of 3,000 M2 with manufacturing capacity up to 2 million pieces per month. ITO designs and manufactures high quality DC motors to meet the demands of a range of industries and geneal applications. Such as automotive, home appliance, power tool, office automation, and so on. ITO motor compamy also have a professional engineer team which have more than 15 yeas of experience in design research and development. So we can customize different motors according your requirement.


1. Professional: The company was founded in 2011, it has focused on different motor manufacture2. Reasonable price: We are professional motor manufacturers, High Power R1SF300 12000rmp 33Kg Electric Car Conversion Kit Reducer Gearbox for 2 to 4 ton Vehicle so there is a great advantage in terms of price3. Quality products and good reputation: Good quality with CE/IFA/ROHS certification4. Technology: This Micro DC brushless vacuum motor with high rotate speed, high vacuum degree, high flow and high efficiency
5. Wide application: special for handle vacuum cleaner, wireless vacuum cleaner, home vacuum cleaner, hand dryer machine, air renewal system.
6. Superior performance: small size and high power

We plant a variety of motors, welcome advice and order.
Packaging & Hot Sale Fully Automated Production ACMotor Speed reducer WormGear Motor Gear Box NMRVVS75 Ratio7.5-100 Worm Gear Speed Reducer Shipping

Packing:Polyfoam or carton seperator inside, strong export carton box outside, with pallet.

Delivery Detail: 25-30

Contact us

Benefits and Uses of Miter Gears

If you’ve ever looked into the differences between miter gears, you’re probably wondering how to choose between a Straight toothed and Hypoid one. Before you decide, however, make sure you know about backlash and what it means. Backlash is the difference between the addendum and dedendum, and it prevents jamming of the gears, protects the mating gear surfaces, and allows for thermal expansion during operation.

Spiral bevel gears

Spiral bevel gears are designed to increase efficiency and reduce cost. The spiral shape creates a profile in which the teeth are cut with a slight curve along their length, making them an excellent choice for heavy-duty applications. Spiral bevel gears are also hypoid gears, with no offsets. Their smaller size means that they are more compact than other types of right-angle gears, and they are much quieter than other types of gear.
Spiral bevel gears feature helical teeth arranged in a 90-degree angle. The design features a slight curve to the teeth, which reduces backlash while increasing flexibility. Because they have no offsets, they won’t slip during operation. Spiral bevel gears also have less backlash, making them an excellent choice for high-speed applications. They are also carefully spaced to distribute lubricant over a larger area. They are also very accurate and have a locknut design that prevents them from moving out of alignment.
In addition to the geometric design of bevel gears, CZPT can produce 3D models of spiral bevel gears. This software has gained widespread attention from many companies around the world. In fact, CZPT, a major manufacturer of 5-axis milling machines, recently machined a prototype using a spiral bevel gear model. These results prove that spiral bevel gears can be used in a variety of applications, ranging from precision machining to industrial automation.
Spiral bevel gears are also commonly known as hypoid gears. Hypoid gears differ from spiral bevel gears in that their pitch surface is not at the center of the meshing gear. The benefit of this gear design is that it can handle large loads while maintaining its unique features. They also produce less heat than their bevel counterparts, which can affect the efficiency of nearby components.

Straight toothed miter gears

Miter gears are bevel gears that have a pitch angle of 90 degrees. Their gear ratio is 1:1. Miter gears come in straight and spiral tooth varieties and are available in both commercial and high precision grades. They are a versatile tool for any mechanical application. Below are some benefits and uses of miter gears. A simple explanation of the basic principle of this gear type is given. Read on for more details.
When selecting a miter gear, it is important to choose the right material. Hard faced, high carbon steel is appropriate for applications requiring high load, while nylon and injection molding resins are suitable for lower loads. If a particular gear becomes damaged, it’s advisable to replace the entire set, as they are closely linked in shape. The same goes for spiral-cut miter gears. These geared products should be replaced together for proper operation.
Straight bevel gears are the easiest to manufacture. The earliest method was using an indexing head on a planer. Modern manufacturing methods, such as the Revacycle and Coniflex systems, made the process more efficient. CZPT utilizes these newer manufacturing methods and patented them. However, the traditional straight bevel is still the most common and widely used type. It is the simplest to manufacture and is the cheapest type.
SDP/Si is a popular supplier of high-precision gears. The company produces custom miter gears, as well as standard bevel gears. They also offer black oxide and ground bore and tooth surfaces. These gears can be used for many industrial and mechanical applications. They are available in moderate quantities from stock and in partial sizes upon request. There are also different sizes available for specialized applications.

Hypoid bevel gears

The advantages of using Hypoid bevel and helical gears are obvious. Their high speed, low noise, and long life make them ideal for use in motor vehicles. This type of gear is also becoming increasingly popular in the power transmission and motion control industries. Compared to standard bevel and helical gears, they have a higher capacity for torque and can handle high loads with less noise.
Geometrical dimensioning of bevel/hypoid bevel gears is essential to meet ANSI/AGMA/ISO standards. This article examines a few ways to dimension hypoid bevel and helical gears. First, it discusses the limitations of the common datum surface when dimensioning bevel/helical gear pairs. A straight line can’t be parallel to the flanks of both the gear and the pinion, which is necessary to determine “normal backlash.”
Second, hypoid and helical gears have the same angular pitch, which makes the manufacturing process easier. Hypoid bevel gears are usually made of two gears with equal angular pitches. Then, they are assembled to match one another. This reduces noise and vibration, and increases power density. It is recommended to follow the standard and avoid using gears that have mismatched angular pitches.
Third, hypoid and helical gears differ in the shape of the teeth. They are different from standard gears because the teeth are more elongated. They are similar in appearance to spiral bevel gears and worm gears, but differ in geometry. While helical gears are symmetrical, hypoid bevel gears are non-conical. As a result, they can produce higher gear ratios and torque.

Crown bevel gears

The geometrical design of bevel gears is extremely complex. The relative contact position and flank form deviations affect both the paired gear geometry and the tooth bearing. In addition, paired gears are also subject to process-linked deviations that affect the tooth bearing and backlash. These characteristics require the use of narrow tolerance fields to avoid quality issues and production costs. The relative position of a miter gear depends on the operating parameters, such as the load and speed.
When selecting a crown bevel gear for a miter-gear system, it is important to choose one with the right tooth shape. The teeth of a crown-bevel gear can differ greatly in shape. The radial pitch and diametral pitch cone angles are the most common. The tooth cone angle, or “zerol” angle, is the other important parameter. Crown bevel gears have a wide range of tooth pitches, from flat to spiral.
Crown bevel gears for miter gear are made of high-quality materials. In addition to metal, they can be made of plastic or pre-hardened alloys. The latter are preferred as the material is less expensive and more flexible than steel. Furthermore, crown bevel gears for miter gears are extremely durable, and can withstand extreme conditions. They are often used to replace existing gears that are damaged or worn.
When selecting a crown bevel gear for a miter gear, it is important to know how they relate to each other. This is because the crown bevel gears have a 1:1 speed ratio with a pinion. The same is true for miter gears. When comparing crown bevel gears for miter gears, be sure to understand the radii of the pinion and the ring on the pinion.

Shaft angle requirements for miter gears

Miter gears are used to transmit motion between intersecting shafts at a right angle. Their tooth profile is shaped like the mitre hat worn by a Catholic bishop. Their pitch and number of teeth are also identical. Shaft angle requirements vary depending on the type of application. If the application is for power transmission, miter gears are often used in a differential arrangement. If you’re installing miter gears for power transmission, you should know the mounting angle requirements.
Shaft angle requirements for miter gears vary by design. The most common arrangement is perpendicular, but the axes can be angled to almost any angle. Miter gears are also known for their high precision and high strength. Their helix angles are less than ten degrees. Because the shaft angle requirements for miter gears vary, you should know which type of shaft angle you require before ordering.
To determine the right pitch cone angle, first determine the shaft of the gear you’re designing. This angle is called the pitch cone angle. The angle should be at least 90 degrees for the gear and the pinion. The shaft bearings must also be capable of bearing significant forces. Miter gears must be supported by bearings that can withstand significant forces. Shaft angle requirements for miter gears vary from application to application.
For industrial use, miter gears are usually made of plain carbon steel or alloy steel. Some materials are more durable than others and can withstand higher speeds. For commercial use, noise limitations may be important. The gears may be exposed to harsh environments or heavy machine loads. Some types of gears function with teeth missing. But be sure to know the shaft angle requirements for miter gears before you order one.

China Professional Hot Sale Spur Gear Speed Reducer 3v 6v 12v 24v DC GEAR MOTOR with gearbox     with Hot sellingChina Professional Hot Sale Spur Gear Speed Reducer 3v 6v 12v 24v DC GEAR MOTOR with gearbox     with Hot selling