Tag Archives: hypoid gearboxes

China Hypoid Right Angle Bevel Helical Gearbox, Hollow Shaft Hypoidal Gearboxes double helical gearbox

Item Description

Hypoid Proper Angle Bevel Helical Gearbox, Hollow Shaft Hypoidal Gearboxes

Functions:
one. Hypoid gear transmission.
two. Aluminum housing.
3. Widespread mounting proportions.
4. Extensive assortment of add-ons.

Advantages
1. Larger efficiency and dependability.
two. Prolonged support daily life.
3. Lower temperature rise.                                   
four. Exclusive housing design.

Solution photograph:

Specification:

ANG Hypoid Gearbox
Design AH40, AH50, AH63, AH75, AH90
Ratio B:7.5,10,12.5,15,twenty,twenty five,thirty,40,fifty,sixty
C: 50,sixty,75,one hundred,a hundred twenty five,150,200,250,three hundred
Transmission Stage B: 2 stages
C: 3 phases
Output torque Up to 500NM
Motor energy .12~4KW, with flange: B5 or B14
Housing material Aluminum alloy
Output shaft Substance: 40Cr
Hardness degree: 242-286HB
Helical gear Substance:20CrMnTi 
Hardness stage: 58-62HRC
Precision level: 6 grade
Transmission performance B:ninety two%-94%
C:90%-ninety two%
Oil seal brand SKF
Bearing  C&U
Lubricant Mineral oil or sythetic oil
Dimension regular Metric size / Inch dimension
Components Flange / CZPT shaft / Torque arm / Go over …

Typical Application 

♦ Coal mining
♦ Energy Plant Equipment 
♦ Metallurgical Industry 
♦ Metallic Forming Machinery 
♦ Petrochemical Industry 
♦ Mining Machine 
♦ Hoisting Machinery 
♦ Cement and construction Industry 
♦ Environmental Protection Industry 
♦ Cable Industry 
♦ Chemical market
♦ Foodstuff Machinery 

FAQ
Q: Can you make the gearbox with customization?
A: Indeed, we can customise for every your request, like flange, shaft, configuration, substance, and so forth.

Q: Do you offer samples?
A: Indeed. Sample is available for testing.

Q: What is your MOQ?
A: It is 10pcs for the beginning of our organization.

Q: What is actually your lead time?
A: Standard solution need to have 5-30days, a little bit more time for tailored goods.

Q: Do you supply technologies assistance?
A: Sure. Our business have layout and growth crew, we can give technology assist if you
require.

Q: How to ship to us?
A: It is accessible by air, or by sea, or by train.

Q: How to spend the funds?
A: T/T and L/C is desired, with different currency, such as USD, EUR, RMB, etc.

Q: How can I know the product is appropriate for me?
A: >1ST affirm drawing and specification >2nd take a look at sample >3rd begin mass manufacturing.

Q: Can I occur to your business to check out?
A: Indeed, you are welcome to pay a visit to us at any time.

Q: How shall we speak to you?
A: You can send inquiry directly, and we will react in 24 hours.

 


/ Piece
|
1 Piece

(Min. Order)

###

Application: Machinery
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Hypoid
Gear Shape: Cylindrical Gear
Step: Double-Step

###

Samples:
US$ 100/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:
Available

|


###

ANG Hypoid Gearbox
Model AH40, AH50, AH63, AH75, AH90
Ratio B:7.5,10,12.5,15,20,25,30,40,50,60
C: 50,60,75,100,125,150,200,250,300
Transmission Stage B: 2 stages
C: 3 stages
Output torque Up to 500NM
Motor power 0.12~4KW, with flange: B5 or B14
Housing material Aluminum alloy
Output shaft Material: 40Cr
Hardness level: 242-286HB
Helical gear Material:20CrMnTi 
Hardness level: 58-62HRC
Precision level: 6 grade
Transmission efficiency B:92%-94%
C:90%-92%
Oil seal brand SKF
Bearing  C&U
Lubricant Mineral oil or sythetic oil
Dimension standard Metric size / Inch size
Accessories Flange / Solid shaft / Torque arm / Cover …

/ Piece
|
1 Piece

(Min. Order)

###

Application: Machinery
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Hypoid
Gear Shape: Cylindrical Gear
Step: Double-Step

###

Samples:
US$ 100/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:
Available

|


###

ANG Hypoid Gearbox
Model AH40, AH50, AH63, AH75, AH90
Ratio B:7.5,10,12.5,15,20,25,30,40,50,60
C: 50,60,75,100,125,150,200,250,300
Transmission Stage B: 2 stages
C: 3 stages
Output torque Up to 500NM
Motor power 0.12~4KW, with flange: B5 or B14
Housing material Aluminum alloy
Output shaft Material: 40Cr
Hardness level: 242-286HB
Helical gear Material:20CrMnTi 
Hardness level: 58-62HRC
Precision level: 6 grade
Transmission efficiency B:92%-94%
C:90%-92%
Oil seal brand SKF
Bearing  C&U
Lubricant Mineral oil or sythetic oil
Dimension standard Metric size / Inch size
Accessories Flange / Solid shaft / Torque arm / Cover …

Helical Gearbox

Depending on the helical gearbox, it can be either Crossed-axis or Inline. Basically, helical gearboxes are composed of a set of toothed gears that mesh with other toothed parts to transmit torque and speed to other parts of the machine.helical gearbox

Right angle helical gearboxes

Choosing the right angle gearbox can be difficult. This is because the design and specifications will depend on the type of application. The right gearbox can make or break the efficiency of the system. For example, a right angle gearbox will need to be corrosion resistant if it is used in a washdown application. It may also require special grease for use in cold temperatures.
There are many different types of right angle gearboxes. The types include worm, hypoid, and spiral bevel gearboxes. The most common are worm gearboxes. These are a great option for applications that need high torque and power. However, they are not as efficient as spur gears.
Helical gearboxes are ideal for heavy-duty industrial applications such as conveyors, blowers, and elevators. They are quiet and have better speed capabilities than spur gears. They can handle larger loads because of their gradual engagement. They are also capable of adjusting the rotation angle by 90 degrees. They are also more efficient at high speeds.
Spiral bevel gearboxes require more precision to manufacture. They are also more expensive to produce. This is because the teeth need to be drilled and shaped to fit the shafts. The gearbox needs to be designed with tight tolerances and requires basic lubrication. Its operating cycle is long.
Helical gearboxes can be used in conjunction with other gearboxes. For example, the output shaft may be a hollow shaft, or it may be designed with dual counter-rotating shafts. They can also be designed to operate in either a clockwise or counter-clockwise direction.
Right angle gearboxes are ideal for high-speed applications. They require less maintenance than other industrial components. They may require corrosion resistant plating or stainless steel shafts. If you are considering a right angle gearbox, check with a distributor to see what types of products are available. A representative will be able to help you with installation. They may also offer custom gearbox solutions to fit your needs.
A gearbox is made up of four main components. These components include the input shaft, the output shaft, the gear, and the backlash.

Crossed-axis helical gears

Normally, helical gearboxes are used to increase torque between two rotating shafts. Compared to other types of gearboxes, helical gearboxes offer greater speed and power carrying capacity. They are also quieter and smoother in operation. These gearboxes are used in many industries such as food processing, plastic, rubber, and oil industries. These gears also have the advantage of being cheaper than spur gears.
These gears are designed with special teeth that are positioned at an angle to the face of the gear. As they rotate, the teeth engage gradually. They have longer teeth, which allow them to carry heavy loads. The contact area also increases as the gears rotate.
A cross axis helical gearbox is one of the most common types of gearboxes. This gearbox has an advantage over spur gears, since it uses bearings to support the thrust load. It can also adjust the rotation angle by 90 degrees. These gearboxes are typically used to drive automobile oil pump/distribution shafts. They are also used to drive blowers. They have a large thrust force.
The cross axis helical gearbox has the advantage of using bearings to support the thrust load. However, it also has the disadvantage of using a large amount of bearings. In addition, these gears are not suitable for speed reduction beyond 1:2.
Thermoplastic crossed axis helical gears are a convenient solution for high volume applications. These gears are self-locking and offer high torque. These gears are also very durable. They are also available in a variety of configurations and sizes. They are used in a wide range of industries, including the textile industry. The output torque of these gears is also very high.
Crossed helical gears are also used to transmit motion and power between perpendicular but non-intersecting shafts. To achieve this, two mating helical gears must have the same helix angle, pressure angle, and normal pitch. They should also be mounted on perpendicular but non-intersecting, parallel shafts.
To calculate the real radial pitch of a gear, the angle of cut is measured. The gear teeth are then cut at an angle to the face of the gear. The helix angle is also measured.helical gearbox

Inline helical gears

Unlike spur gears, helical gears have a large surface contact and are characterized by low noise and large torque. Moreover, helical gears also have a high degree of meshing performance. They are also compact and durable.
As the name suggests, helical gears are produced using hard steel teeth. They are also hobbed to ensure smooth running and accurate surface finish. In addition, all gearing is ground for increased efficiency.
Inline helical gearboxes are used in a number of applications, including waste water systems and in solvent extraction. They are also used in industries like power plants and food & tobacco. They have good efficiency and are low in cost. They also have interchangeability and high durability. They can be installed in a single piece aluminum alloy housing. They can also be foot mounted or flange mounted. They are available in single stage and three stage constructions.
Helical gearboxes are typically used in high-load applications, such as in cement and waste water systems. They are also suitable for industrial applications, including in manufacturing. They are also used in applications where there is a large speed variation range. They are suitable for a wide temperature range, from -10 degC to 40 degC.
A helical gearbox has a high degree of interchangeability, and can be installed with a wide range of motors. They are also available in flame proof versions. They can also be supplied with an integrated output flange. They have standard IEC inputs, making them easy to install and operate. They also have a removable inspection cover, which allows periodic inspection of gearing. They can also be supplied with integral mounting bases.
The transmission ratio of helical gearboxes is finely graded to meet different working conditions. They also have an output torque that ranges from 1.4-250. They are also available in a modular model, which allows them to be produced in an economical manner. They can also be installed with a standard IEC input, which makes them easy to fit with any IEC motor. They also have a permanent nameplate, which indicates the ratio and the output torque.helical gearbox

Helix angle

Using a helical gearbox is a more economical and efficient way of creating a gearbox. It is also beneficial for production because it allows for more interchangeable components. It can also be used in the oil and plastic industries. It has advantages over conventional gears because it runs quieter.
The helical gearbox is a type of gearbox that uses a helical cut on the teeth of the gears. It carries more surface contact than conventional gears, which increases the power carrying capacity. It is also more durable and quieter than conventional gears.
The helical gearbox is generally used in enclosed gear systems because it allows for higher tooth overlap and smoother performance. It also eliminates thrust forces. The helical gearbox can be made of two helical sections that are close together. It is common to use double helical gearboxes in enclosed gear systems. The gears can be ground and hardened.
The radial pitch of helical gears is about eight millimeters. In the helical gearbox, the radial pitch of the gears is the same as the pitch of the spur gears. Using the same tooth cutting tools, it is possible to make helical gears more economically.
The pitch of the helical gearbox will vary with the helix angle. Typically, the helix angle is between 15 and 30 degrees. The pitch will also change with the number of teeth in the spur gear. The pitch will increase when the number of teeth increases.
The pitch is also affected by the pressure angle of the tooth. The pressure angle affects the normal force and curvature radii. The length of the helical gear contact line decreases as the pressure angle increases. This can also be seen when considering contact on the tooth surface. The helix angle is also important when calculating the forces between the helical gears.
It is important to understand that helical gears generate axial forces within the gear-mesh. These forces need to be supported by bearings. They also generate heat. This heat is also detrimental to the efficiency of the gear. It can also cause power loss.
China Hypoid Right Angle Bevel Helical Gearbox, Hollow Shaft Hypoidal Gearboxes     double helical gearboxChina Hypoid Right Angle Bevel Helical Gearbox, Hollow Shaft Hypoidal Gearboxes     double helical gearbox
editor by CX 2023-04-03

China Reliable Reducers WPKZ Gearmotors Speed Reducers Planetay Hypoid Helical Gearboxes Electric Motors Couplings for industry gearbox and motor

Warranty: 1 12 months
Relevant Industries: Hotels, Garment Retailers, Constructing Substance Stores, Manufacturing Plant, Equipment Mend Retailers, Foodstuff & Beverage Factory, Farms, Cafe, House Use, Retail, Foodstuff Store, Printing Retailers, Development works , Power & Mining, Food & Beverage Stores, Advertising and marketing Company, Other
Bodyweight (KG): 30 KG
Custom-made help: OEM, ODM, OBM
Gearing Arrangement: Worm
Output Torque: 1.8-2430N.M
Enter Pace: 750-1500rpm
Output Pace: fourteen-280rpm
clolor: Blue/grey/silver
Packaging Details: Cartons and robust wood situation for sea transporation
Port: HangZhou,ZheJiang

MODEL NO.WPKZ InstallationTorque Arm KindStepStepless
TypeHot Sale Gearbox WPDA Velocity Reducer Gear BOX RV gearmotorOutput Speed14.4-192rpmWarranty1 years
Transport bundleStandard Sea Worthy Package dealInput Pace1440rpmLubricantSynthetic & Mineral
Color Blue, SilverSealNAK seal from ZheJiang Worm45# steel
WP worm reducer:WP worm equipment and worm reducer is designed on the foundation of wd reducer, the worm is made of 45 # higher quality steel following heattreatment processing and manufacturing, worm equipment with tin bronze solid, PA120 German technologies Wholesale price tag CZPT model boat gearbox use-resisting performance is good, specifically on thebearing ability is more apparent, is largely utilised in plastics, metallurgy, beverage, mining, lifting transport, chemical reductiondrive construction and other mechanical equipment.WP worm reducer characteristics:1, easy transmission, vibration, so that the affect and sound are tiny, deceleration ratio, broad flexibility, can be utilized withall types of mechanical gear.2, can accomplish a massive transmission ratio by CZPT transmission, compact construction, most sorts of reducer has betterself-locking, braking needs of mechanical tools can preserve the brake device.3. The meshing friction loss of worm screw tooth and worm equipment tooth surface is big, so the transmission effectiveness is lowerthan that of the equipment, which is prone to heating and large temperature.4. Larger requirements for lubrication and cooling.5, very good compatibility, worm equipment and worm are made in accordance with nationwide requirements, bearings, oil seals and otherstandard parts.6. Types of box physique: fundamental kind (box entire body is vertical or horizontal framework with sole baseboard) and common sort (box bodyis rectangular, large quality Rubber Shaft Tyre versatile Coupling For mechanical products with set screw holes on several sides, without having sole baseboard or with sole baseboard installed individually)7, the input shaft connection manner has the fundamental variety (single input shaft and double input shaft), with 2 sorts of motor flange.8. The situation route of the output and enter axes is decrease and upper Output shaft up and down Enter axis up and down.9. Two or 3 reducer sets can be utilized to form multi-phase reducer to receive the maximum transmission ratio. Packing & Shipping Packaging: In order to ensure the integrity of item physical appearance, we will choose cartons, wooden pallets and picket pallets in accordance to consumer requirements. ●Delivery time: Each and every reducer is manufactured and tested in accordance with rigorous and fastened techniques to guarantee that the high quality is correct ahead of leaving the manufacturing facility and shipping on time. ●Transportation manner: We will choose the most suited manner of transportation for our consumers in accordance to the weight and size of the products. We can also select the mode of transportation in accordance to the wants of our customers. ●Receiving and soon after-product sales support: After getting the products, please check regardless of whether they are in excellent issue. We will offer clients with perfect after-income services. Organization Profile HangZhou Suyishi Transmission Co., Ltd. is a expert producer and distributor of velocity reducer,gearbox, electric motor, gearmotor, screw jack, couplings and other transmission items. We will provide buyers at house and abroad with cost-efficient charges and steady top quality. Welcome domestic and foreign consumers to inquire and cooperate.With fast delivery, superior after-revenue service, superior creating facility, our speed reducer promote effectively each at residence and abroad. We have exported our reducers to Southeast Asia, Eastern Europe and Middle East and so on. Our intention is to create and innovate on basis of higher high quality, and develop a good reputation for reducers. FAQ 1. who are we?We are primarily based in ZHangZhoug, China, begin from 2571,sell to Eastern Asia(fifty five.00%), LF4255710 Cooling Tower Matching Gear Pace Reducer North The usa(5.00%),Eastern Europe(5.00%),South Asia(5.00%). There are whole about eleven-fifty people in our place of work.2. how can we ensure quality?Usually a pre-generation sample before mass productionAlways closing Inspection before shipment3.what can you get from us?speed reducer,Gearbox,Electric powered motor,Gearmotor,Couplings4. why should you acquire from us not from other suppliers?We have some exceptional salesman ( with much more than ten many years epxort experience)5. what companies can we give?Accepted Shipping Phrases: FOB,CFR,CIF,EXW,Express Delivery;Accepted Payment Forex:USD,EUR,CNYAccepted Payment Variety: L/C,D/P D/A,MoneyGram,PayPal,Western Union,CashLanguage Spoken:English,Chinese, Garage Doorway Opener Travel Gears Replacements Gear and Sprocket Kit Spanish,Arabic,Russian

Types of Vehicle Gearboxes

In a vehicle, there are many types of gearboxes available. There are planetary gearboxes, Coaxial helical gearboxes, and skew bevel helical gearboxes, among others. In this article, we’ll cover all of them and help you determine which type of gearbox would be right for your vehicle. Also, we’ll discuss how each differs from the others.
gearbox

planetary gearbox

A planetary gearbox is composed of three main components: a sun gear, an input bevel gear, and an output shaft. A planetary gearbox can have different output torques and ratios. The basic model of a planetary gearbox is highly efficient and transmits 97% of the power input. There are several kinds of planetary gearboxes, depending on the type of operation. In general, there are three types: the simple, the intermediate, and the complex.
The price of a planetary gearbox can vary a lot, and it’s important to know what you’ll need. Different manufacturers produce different planetary gearboxes, so check with a manufacturer to see what they have available. Make sure to check the quality of the planetary gearbox before making a final purchase. In addition, be sure to compare the prices and the availability of a particular product. A quality planetary gearbox will provide years of trouble-free operation and will not break your bank.
Planetary gears feature an integer number of teeth. Each planet has teeth that must mesh with its ring or sun. The number of planets, ring, and tooth count of each gear determine whether the teeth mesh. Some planets have fewer teeth than others, so they mesh better than others. However, compound planets can be more flexible and achieve higher reduction ratios. If you’re looking for a planetary gearbox for your next project, consider getting in touch with a manufacturer who specializes in this technology.
When it comes to construction, a planetary gearbox is no exception. It’s extremely important to choose the right planetary gear for your application, because an imbalance in the planet gear can cause increased wear and failure. Moreover, the compact size of a planetary gear ensures maximum heat dissipation. However, a planetary gear box may require cooling in some applications. A planetary gearbox will make your life easier, and it will give you years of trouble-free operation.

Straight bevel helical gearbox

The Straight bevel helical gearbox has a number of advantages, but it has a relatively short manufacturing process. Its most popular application is in the automotive industry, where it is used in many types of vehicles. Other applications include heavy and light equipment and the aviation and marine industries. Below is a brief introduction to this gearbox type. Read on to learn about its benefits. This type of gearbox is one of the easiest to manufacture.
The spiral bevel gear has larger teeth than straight bevel gears, resulting in a smoother, quieter rotation. It can handle high-speed heavy loads with less vibration. Spiral bevel gears are classified by their tooth form and cutting method. Straight bevel gears are easier to design and manufacture, but spiral bevel gears are more expensive. Both designs are suitable for high-speed, heavy-load operations, and general manufacturing applications.
In addition to being easy to install, the modular bevel gears have many advantages. They have an exceptionally high degree of interchangeability and feature the highest standards of component integrity. They can also be tailored to meet your specific requirements. The advantages of this gearbox type include high precision, optimum performance, and low noise. And because they are modular, they can be produced in a variety of finishes. These include stainless steel, titanium, and bronze.
Straight bevel helical gearbox manufacturers are committed to a high degree of precision in their designs. The radii, torques, and tooth profiles of straight bevel gears are more precisely measured than those of cylindrical bevel gears. The same calculations are used for all traditional bevel gear generators. This ensures that your 5-axis milled bevel gear sets have the same calculations and layout.
gearbox

Coaxial helical gearbox

The Coaxial helical gearbox is a highly efficient transmission system that is well suited for light-duty applications. Compared to spur-type gearboxes, the real pitch of a Coaxial helical gearbox is low at all helix angles. This is because the coaxial type has the same number of teeth and center gap as the spur gearbox. Coaxial helical gearboxes also have a smaller footprint and are compact.
Several nations have implemented lockdown regulations for Industrial Gearbox trade, threatening the global economy. Several factors have been implicated in COVID-19, including supply chain, market, and financial markets. Experts are monitoring the situation globally and project remunerative prospects for gearbox manufacturers after the crisis. This report depicts the latest scenario and offers a comprehensive analysis of COVID-19’s impact on the entire industry.
This Coaxial helical gearbox features a compact structure and high precision gear. Its three-stage design combines two-stage gears with a single-stage gear, forging high-quality alloy steel for high precision and durability. The gears are serially-designed for easy interchangeability. They are also available in high-frequency heat-treated steel. A Coaxial helical gearbox is the perfect solution for many applications.
Coaxial helical gearboxes have the added benefit of using cylindrical gears instead of shafts. They operate quietly, and have more surface area to interact with. Their fixed angles make them suitable for heavy-duty applications, like in conveyors, coolers, and grinders. Compared to other gearbox types, Helical gearboxes have higher power-carrying capacity. Listed below are the benefits of a Coaxial Helical Gearbox

Skew bevel helical gearbox

A Skew bevel helical gear box is a common type of industrial gearbox. These gearboxes are rigid and compact and can be used in a variety of applications. They are commonly used in heavy-duty applications such as grinding mills, conveyors, and coolers. They are used in many applications to provide rotary motions between non-parallel shafts. They also have the added benefit of high-efficiency in a variety of industries.
Skew bevel helical gear boxes are suitable for heavy loads and are monolithic in construction. This type of gearbox combines the benefits of bevel and helical gears for right-angle torque, which makes it a popular choice for heavy-duty applications. In addition to being a robust and reliable gearbox, these gearboxes are highly customizable and can meet almost any industrial need.
To maximize the efficiency of bevel gears, FE-based tooth contact analysis is used to develop a sophisticated geometry optimization algorithm. The software also allows users to define optimal flank topography by introducing application-specific weightings for specific load levels. With this data, a manufacturing simulation is conducted to determine the best variant. A robust variant combines the benefits of efficiency, load-carrying capacity, and low excitation behavior.
The helical gear can be angled at 90 degrees. This is similar to a spur gear but produces less noise. It can achieve a nine-to-one speed reduction with one stage. However, a helical gear requires a larger driver gear for higher reductions. This gearbox is suitable for speeds from 1:1 to three times. They are often used in the manufacture of motors and generators.
gearbox

Extruder helical gearbox

An extruder helical gearbox is one of the most common industrial gears. It is compact in size and low-power consuming, making it ideal for heavy-duty applications. Extruder helical gearboxes are suitable for a variety of industrial applications, including cement, plastics, rubber, conveyors, and coolers. In addition to its use in plastics and rubber manufacturing, this gearbox is also useful in other low-power applications such as crushers, coolers, and conveyors.
CZPT SG series Extruder Helical Gearboxes are available in Single Screw and Twin Screw Variations. These gears feature a compact design, high power density, and long service life. Axial bearing housing and thrust bearings are mounted on the input shafts. Extruder helical gearboxes can be installed in various positions, including horizontal, vertical, and inclined.
Helicoidal gears are often produced in a modular manner. This design provides multiple benefits, including engineering and performance advantages, modular production, and the highest level of component integrity. A single helical gearbox can be assembled into a larger gearbox if needed, but modular production ensures consistent performance and economy. This modular design is also cost-effective. It is a versatile and reliable solution for a wide range of applications.
In addition to its efficiencies, Extruder helical gearboxes also have a low noise profile. They have no squeal sounds, and they are silent when running. They can transfer more power than conventional gearboxes. This type of gear has been used in the manufacturing of high-quality plastic products for years. They are often used for applications in automotive transmissions. Aside from being quiet, helical gears have higher contact levels and lower vibration.

China Reliable Reducers WPKZ Gearmotors Speed Reducers Planetay Hypoid Helical Gearboxes Electric Motors Couplings for industry     gearbox and motor	China Reliable Reducers WPKZ Gearmotors Speed Reducers Planetay Hypoid Helical Gearboxes Electric Motors Couplings for industry     gearbox and motor
editor by czh2023-03-08