ZD Leader has a wide range of micro motor production lines in the industry, including DC Motor, AC Motor, Brushless Motor, Planetary Gear Motor, Drum Motor, Planetary Gearbox, RV Reducer and Harmonic Gearbox etc. Through technical innovation and customization, we help you create outstanding application systems and provide flexible solutions for various industrial automation situations.
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Q: What’re your main products?
A: We currently produce Brushed Dc Motors, Brushed Dc Gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors, Ac Motors and High Precision Planetary Gear Box etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.
Q: How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.
Q: Do you have a customized service for your standard motors?
A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.
Q: Do you have an individual design service for motors?
A: Yes, we would like to design motors individually for our customers, but it may need some mold developing cost and design charge.
Q: What’s your lead time?
A: Generally speaking, our regular standard product will need 15-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.
A Mathematical Model of a Cycloid Gearbox
Having a gearbox with a cycloidal rotor is an ideal design for a car or any other vehicle, as the cycloidal design can reduce the amplitude of vibration, which is a key component in car performance. Using a cycloidal gearbox is also a great way to reduce the amount of friction between the gears in the gearbox, which can help to reduce noise and wear and tear. A cycloidal gearbox is also a very efficient design for a vehicle that needs to perform under high loads, as the gearbox can be very robust against shock loads.
Basic design principles
cycloidal gearboxes are used for precision gearing applications. Cycloidal drives are compact and robust and offer lower backlash, torsional stiffness and a longer service life. They are also suitable for applications involving heavy loads.
Cycloidal drives are compact in size and provide very high reduction ratios. They are also very robust and can handle shock loads. Cycloidal drives are ideally suited to a wide range of drive technologies. Cycloidal gears have excellent torsional stiffness and can provide a transmission ratio of 300:1. They can also be used in applications where stacking multiple gear stages is not desired.
In order to achieve a high reduction ratio, cycloidal gears must be manufactured extremely accurately. Cycloidal gears have a curved tooth profile that removes shear forces at any point of contact. This provides a positive fit for the gear disc. This profile can be provided on a separate outer bushing or as an internal gear profile insert.
Cycloidal drives are used in marine propulsion systems, where the load plate rotates around the X and Y axis. The plate is anchored by a threaded screw hole arranged 15mm away from the center.
A secondary carrier body is used in a cycloidal gearbox to support the load plate. The secondary carrier body is composed of a mounting carrier body and a secondary carrier disc.
Several studies have been conducted to understand the static problems of gears. In this paper, we discuss a mathematical model of a low friction cycloidal gearbox. This model is designed to calculate various parameters that affect the performance of the gearbox during production.
The model is based on a new approach that includes the stiction effect and the nonlinear friction characteristic. These parameters are not covered by the conventional rule of thumb.
The stiction effect is present when the speed direction is changed. During this time, the input torque is required to prevail over the stiction effect to generate movement. The model also enables us to calculate the magnitude of the stiction effect and its breakaway speed.
The most important thing is that the model can be used to improve the dynamic behavior of a controlled system. In this regard, the model has a high degree of accuracy. The model is tested in several quadrants of the gearbox to find the optimum stiction breakaway speed. The simulation results of the model show that this model is effective in predicting the efficiency of a low friction cycloidal gearbox.
In addition to the stiction model, we also studied the efficiency of a low friction cycloidal reducer. The reduction ratio of this gearbox was estimated from the formula. It is found that the ratio approaches negative infinity when the motor torque is close to zero Nm.
Unlike standard planetary gears, cycloidal gearboxes are compact, low friction and feature virtually zero backlash. They also offer high reduction ratios, high load capacity and high efficiency. These features make them a viable option for a variety of applications.
Cycloid disks are driven by an eccentric input shaft. They are then driven by a stationary ring gear. The ring gear rotates the cycloidal disk at a higher rate. The input shaft rotates nine times to complete a full rotation. The ring gear is designed to correct the dynamic imbalance.
CZPT cycloidal gearheads are designed for precision and stable operation. These reducers are robust and can handle large translocations. They also offer high overload protection. They are suitable for shock wave therapy. CZPT gearheads are also well suited for applications with critical positioning accuracy. They also require low assembly and design costs. They are designed for long service life and low hysteresis loss.
CZPT cycloidal reducers are used in a variety of industrial applications, including CNC machining centers, robot positioners and manipulators. They offer a unique design that can handle high forces on the output axis, and are especially suitable for large translocations. These gearheads are highly efficient, reducing costs, and are available in a variety of sizes. They are ideal for applications that require millimetre accuracy.
High reduction ratios
Compared to other gearboxes, cycloidal gearboxes offer high reduction ratios and small backlash. They are also less expensive. Cycloid gearboxes can be used in a variety of industries. They are suitable for robotic applications. They also have high efficiency and load capacity.
A cycloidal gearbox works by rotating a cycloidal disc. This disc contains holes that are bigger than the pins on the output shaft. When the disc is rotated, the output pins move in the holes to generate a steady output shaft rotation. This type of gearbox does not require stacking stages.
Cycloid gearboxes are usually shorter than planetary gearboxes. Moreover, they are more robust and can transmit higher torques.
Cycloid gearboxes have an eccentric cam that drives the cycloidal disc. The cycloidal disc advances in 360deg/pivot/roller steps. It also rotates in an eccentric pattern. It meshes with the ring-gear housing. It also engages the internal teeth of the ring-gear housing.
The number of lobes on the cycloidal disc is not sufficient to generate a good transmission ratio. In fact, the number of lobes must be less than the number of pins surrounding the cycloidal disc.
The cycloidal disc is rotated by an eccentric cam that extends from the base shaft. The cam also spins inside the cycloidal disc. The eccentric motion of the cam helps the cycloidal disc rotate around the pins of the ring-gear housing.
Reducing amplitude of the vibration
Various approaches to reducing amplitude of the vibration in a cycloidal gearbox have been studied. These approaches are based on the kinematic analysis of gearbox.
A cycloidal gearbox is a gearbox that consists of bearings, gears, and an eccentric bearing that drives a cycloidal disc. This gearbox has a high reduction ratio, which is achieved by a series of output shaft pins that drive the output shaft as the disc rotates.
The test bench used in the studies has four sensors. Each sensor acquires signals with different signal processing techniques. In addition, there is a tachometer that acquires variations in rotational velocity at the input side.
The kinematic study of the robotic gearbox was performed to understand the frequency of vibrations and to determine whether the gearbox is faulty. It was found that the gearbox is in healthy operation when the amplitude of the x and y is low. However, when the amplitude is high, it is indicative of a malfunctioning element.
The frequency analysis of vibration signals is performed for both cyclostationary and noncyclostationary conditions. The frequencies that are selected are those that appear in both types of conditions.
Robust against shock loads
Compared to traditional gearboxes, cycloidal gearboxes have significant benefits when it comes to shock loads. These include high shock-load capacity, high efficiency, reduced cost, lower weight, lower friction, and better positioning accuracy.
Cycloid gears can be used to replace traditional planetary gears in applications where inertia is important, such as the transportation of heavy loads. They have a lighter design and can be manufactured to a more compact size, which helps reduce cost and installation expense. Cycloid gears are also able to provide transmission ratios of up to 300:1 in a small package.
Cycloid gears are also suitable for applications where a long service life is essential. Their radial clamping ring reduces inertia by up to 39%. Cycloid gears have a torsional stiffness that is five times higher than that of conventional planetary gears.
Cycloid gearboxes can provide significant improvements in concrete mixers. They are a highly efficient design, which allows for important innovations. They are also ideal for servo applications, machine tools, and medical technology. They feature user-friendly screw connections, effective corrosion protection, and effective handling.
Cycloid gears are especially useful for applications with critical positioning accuracy. For example, in the control of large parabolic antennas, high shock load capacity is required to maintain accuracy. Cycloid gears can withstand shock loads up to 500% of their rated torque.
Various studies have been conducted to investigate the static problems of gears. However, there is still a need for a proper model to investigate the dynamic behaviour of a controlled system. For this, a mathematical model of a cycloidal gearbox has been developed. The presented model is a simple model that can be used as the basis for a more complex mechanical model.
The mathematical model is based on the cycloidal gearbox’s mechanical construction and has a nonlinear friction characteristic. The model is able to reproduce the current peaks and breaks at standstill. It also considers the stiction effect. However, it does not cover backlash or torsional stiffness.
This model is used to calculate the torque generating current and the inertia of the motor. These values are then compared with the real system measurement. The results show that the simulation results are very close to the real system measurement.
Several parameters are considered in the model to improve its dynamic behaviour. These parameters are calculated from the harmonic drive system analysis. These are torque-generating current, inertia, and the contact forces of the rotating parts.
The model has a high level of accuracy and can be used for motor control. It is also able to reproduce the dynamic behaviour of a controlled system.
editor by CX 2023-10-22
K187 gear reducer motor 45KW 55KW 90 degree high quality helical bevel gear
-K Series Helical Bevel Gearbox
K series gear reducer, manufactured according to international technical requirements, has a high scientific and technological content; Space saving, reliable and durable, high overload capacity, power up to 132KW; Low energy consumption, superior performance, reducer efficiency up to 95%
It is designed and manufactured on the basis of module combination system. There are a lot of motor combinations, installation forms and structural schemes. The transmission ratio is classified carefully to meet different operating conditions and realize electromechanical integration.
High transmission efficiency, low energy consumption and superior performance.
Reinforced high rigid cast iron box; The hardened gear is made of high-quality alloy steel. Its surface is carburized, quenched and hardened, and the gear is finely ground. It features stable transmission, low noise, large bearing capacity, low temperature rise, and long service life. Performance and characteristics:
1. The gear is carburized and quenched with high-quality alloy, the hardness of the tooth surface is up to 60 ± 2hrc, and the grinding accuracy of the tooth surface is up to 5-6
2. The computer modification technology is used to pre modify the gear, which greatly improves the bearing capacity of the reducer
3. Complete modular structure design is adopted from the box to the internal gear, which is suitable for large-scale production and flexible selection
4. The standard reducer models are divided according to the form of decreasing torque. Compared with the traditional equal proportion division, they are more in line with customer requirements and avoid power waste
5. It is designed and manufactured by cad/cam to ensure the stability of quality
6. Multiple sealing structures are adopted to prevent oil leakage
7. Multi directional noise reduction measures to ensure the excellent low noise performance of the reducer
8. The installation mode of Liyi products is flexible, which makes it easy for customers to choose K57 reducer, K67 reducer, K77 reducer, K87 reducer, K97 reducer, KA87 reducer, KA97 reducer, KA107 reducer, KA127 reducer
1. Input mode: Coupled motor, belted motor, input shaft or connection flange.
2. Output: Right angle
3. Compact structure. Rigid tooth face. Carrying greater torque, high loading capacity.
4.High precision gear, ensuring the unit to operate stably, smooth transmission.
5. Low noise, long lifespan. Large overlap coefficient, abrasion resistant.
K Helical-bevel gear units
Steel or cast iron
1.K series spiral bevel gear reducer with small vibration, low noise, energy saving.
2.Selection of high quality steel material, steel cast iron box, gear surface after high frequency heat treatment.
K series product performance
High transmission efficiency, low energy consumption and superior performance. High rigidity cast iron box with ribs; hard-toothed gears are made of high-quality alloy steel, the surface is carburized and quenched and hardened, and the teeth are finely machined, with stable transmission, low noise, large bearing capacity, low temperature rise and long service life.
Our process of production
Our product line
|Hardened Tooth Surface
Role of Helical Gearboxes in Automotive Transmissions
Helical gearboxes play a crucial role in automotive transmissions, contributing to the efficient power transfer and smooth operation of vehicles:
- Power Transmission: Helical gearboxes are used to transmit power from the engine to the wheels through different gear ratios. They help in converting the high-speed, low-torque output of the engine into the appropriate speed and torque for the wheels.
- Smooth Shifting: In manual and automatic transmissions, helical gears are often used to provide smooth and quiet gear shifts. The gradual engagement of helical gear teeth helps in reducing the shock and noise associated with gear changes.
- Noise Reduction: Helical gears are known for their quieter operation compared to other gear types. This is especially important in automotive applications where minimizing noise and vibration is desired for a comfortable driving experience.
- Efficiency: The efficiency of helical gearboxes helps in optimizing fuel efficiency and reducing energy losses. This is crucial for improving the overall performance and economy of vehicles.
- Load Distribution: Helical gears distribute the load over multiple teeth, reducing wear and ensuring the gearbox’s longevity. This is important in vehicles that experience varying loads and driving conditions.
- Torque Handling: Helical gears can handle higher torque loads compared to some other gear types. This is essential for vehicles, especially those with powerful engines, towing capabilities, or off-road use.
In modern automotive transmissions, helical gearboxes can be found in various components, including the main transmission, differential, and gearbox synchronizers. They contribute to the smooth operation, improved fuel efficiency, and overall performance of vehicles. The design and arrangement of helical gears can be tailored to meet the specific requirements of different vehicle types, making them a versatile choice for automotive applications.
Impact of Thermal Expansion on Helical Gearbox Performance
Thermal expansion can significantly affect the performance of helical gearboxes due to changes in dimensions and clearances caused by temperature variations. Here’s how it impacts:
1. Misalignment: Temperature changes can lead to differential expansion of gearbox components. This can result in misalignment of gears, shafts, and bearings, leading to increased friction, noise, and reduced efficiency.
2. Lubrication: Thermal expansion can alter the clearances within the gearbox, affecting the distribution and viscosity of the lubricating oil. Inadequate lubrication due to temperature-induced changes can result in increased wear and premature failure.
3. Gear Tooth Engagement: Temperature fluctuations can cause gear teeth to expand or contract, affecting the meshing engagement and load distribution. Inconsistent gear tooth contact can lead to uneven wear and reduced gear life.
4. Bearing Performance: Bearings in helical gearboxes are sensitive to temperature changes. Excessive heat can lead to reduced bearing life, increased friction, and potential seizure, affecting overall gearbox performance.
5. Noise and Vibration: Thermal expansion can lead to changes in gear and component clearances, resulting in altered vibration patterns and increased noise levels. This can impact the comfort of the system and indicate potential issues.
6. Material Fatigue: Repeated cycles of thermal expansion and contraction can lead to material fatigue and stress accumulation, reducing the overall lifespan of gearbox components.
Managing Thermal Effects: Manufacturers design helical gearboxes with considerations for thermal expansion, using materials with low coefficients of thermal expansion and incorporating features like expansion joints or thermal isolators. Proper lubrication, monitoring temperature, and maintaining consistent operating conditions are also crucial in mitigating thermal expansion effects.
Understanding and managing the impact of thermal expansion is essential to maintain the performance, efficiency, and durability of helical gearboxes.
Helical Gearbox: Overview and Working Mechanism
A helical gearbox is a type of mechanical device used to transmit power and motion between rotating shafts. It employs helical gears, which are cylindrical gears with teeth that are cut at an angle to the gear axis. This design feature gives helical gearboxes their distinctive helical shape and provides several advantages in terms of efficiency, smoothness, and load-bearing capabilities.
The working mechanism of a helical gearbox involves the interaction of helical gears, which mesh together to transmit torque and motion. Here’s how it works:
- Gear Tooth Engagement: When power is applied to the input shaft of the gearbox, the helical gear on the input shaft meshes with the helical gear on the output shaft.
- Helical Angle: The helical angle of the gear teeth causes a gradual engagement between the teeth, resulting in a smooth and quiet meshing process compared to straight-cut gears.
- Torque Transfer: As the input gear rotates, it transfers rotational force (torque) to the output gear through the meshing of their helical teeth.
- Direction of Rotation: Depending on the arrangement of the helical gears, the output shaft’s direction of rotation can be the same as or opposite to that of the input shaft.
- Load Distribution: The helical design allows for multiple teeth to be engaged at any given moment, distributing the load more evenly across the gears. This results in higher load-carrying capacity and reduced wear on gear teeth.
- Efficiency: Helical gearboxes are known for their high efficiency due to the gradual tooth engagement and larger contact area, resulting in minimal energy loss as compared to other gear types.
Helical gearboxes find applications in various industries where smooth operation, high efficiency, and compact design are important. They are commonly used in machinery, conveyors, automotive transmissions, industrial equipment, and more.
editor by CX 2023-09-05
The solution effectively displays environmental defense and strength saving.
Quick DetaAre you looking for a PTO drinking water pump or PTO- driven generator? Hundreds of PTO elements from EPG imply you can locate PTO shaft parts and components for what ever sort of products you are working with. From PTO travel shafts to shield areas, we have dozens of substitute PTO components. We inventory Eurocardan components as well as Neapco parts simply because those are names you can believe in. Whether you require flex couplers or PTO shaft assemblies, we can aid.ils
- Relevant Industries:
Developing Content Stores
- Gearing Arrangement:
- Output Torque:
- Input Speed:
- Output Pace:
- Place of Origin:Zhejiang, China
- Model Identify:
Blue / Grey / Customer need
- Offer Ability:
- 2000 Established/Sets for each Thirty day period
Packaging & Shipping and delivery
- Packaging Information
- One set in one picket situation,then big wooden case for several little wooden circumstances.
- Chinese Port
Amount(Boxes) one – 1 >1 Est. Time(times) twenty To be negotiated
SMR Shaft Mounted Gearbox gearmotor with parallel shaft adjustable gearbox reducer revearse gearbox for go kart
Conveyor & Content Handling
Mining & Quarry
1) All gears are heat handled and set to obtain reduced sound and substantial output
two) Mounting proportions are interchangeable with Fenner
Output Shaft Bore
Our business has sound financial strength, builds up a technician crew contingent with substantial high quality, possesses the manufacturing assembly line of technicalization in China and best system examining on product good quality and operates marketing networks through the nation.
High quality manage
Packing Specifics: Common carton/Pallet/Normal wood case
Shipping and delivery Details : fifteen-30 functioning days upon payment
You can click on the image to browse other items.
Precision Planetary gearbox
one.Payment Time period: TT, L/C
2.Supply time: about 30 times from obtain payment.
three.We take tailored goods as for every your special need.
4.Tips for the Choice:Generally we can choose 1 device which is suitable for you with some informations from you,this kind of as ratio/motor velocity/mounting dimension/ out torque etc.
5.If the minimal order sum is in surplus of $ten thousand, there are preferential.
Q1: What data need to I explain to you to confirm the product?
A:Model/Dimension, Transmission Ratio, Shaft directions & Get quaWorm Gears A worm equipment method consists of a worm and worm wheel positioned as a cross axis and is the most compact variety of equipment program. Because of to the compact layout, worm equipment reducers are in a position to be positioned in relatively modest areas and give higher-ratio speed reduction. Worm gears are identified to run efficiently and quietly, as lengthy as they are properly mounted and lubricated.ntity.
Q2: What can i do if I never know which one particular I need?
A:Dont fear, Send as a lot info as you can, our team will help you locate the appropriate 1 you are seeking for.
Q3: What is your item warranty interval?
A:We provide one particular 12 months guarantee because the vessel departure date still left China.
If you have one more query, pls feel totally free to contact us.
Make contact with Us
Scorching Sale large high quality S Sequence Helical Geared gearmotor reducer
one&period Product features
1&period1&period of time Flange-mounted with hollow shaft&comma foot-mounted with hollow shaft&comma and optional torque arm and other specific add-ons&time period
1&period2&period of time Large energy&comma extended services existence&time period
1&period3&period of time To be mixed with various motors for larger transmission ratio&interval
one&period4&time period Carburized gears are tough and extremely accurate&time period
one&period5&period of time Substantial overload ability and minimal noise
|&period12 – 200 Kw
|up to 50000 N&period of time M
one&period3&period They are widely used in various low-speed transmissions&comma which are general basic parts of mechanical transmission&period
two&period CZPT parameters
|Surface hardnesss of gear
|Gear core hardness
|Enter&solOutput shaft material
|Enter&solOutput shaft hardness
|Shaft at oil seal postion hardness
|HRC48 ° -55 °
|Machining precision of gears material
|Accurate grinding 6-5 grade
|tempering&comma cementing&comma quenching etc
|up to 90&percnt
|Foot mounted&commaflange mounted&commahollow shaft mounted
|flange input&commainline input&commashaft input
|Oil seal brands
|IP55&comma F class
|40Cr&comma Tempering&comma cementing&commaquenching etc&time period
HangZhou XG Transmission Gearbox reducer are widely used in &colon
Beer& Drink CZPT
CZPT and dyeing CZPT
Warehouse Logoistics CZPT
Wood working CZPTry
environmental protection equipment CZPT
4&period1&periodWe provide 12 months Warranty&interval
4&period2&period We have thousands of gearbox reducers&period From Input Power 0&period06KW to 200KW&comma Ratio 1&period3-289&period74&comma Output speed 0-1095rpm and Output torque 1&period4-62800Nm&period&period of time&periodThey can meet your all different requirements for different industries&time period
4&period3&period We provide E-catalog or Paper catalog&commaso you can select the model easily according to your requirements
4&period4&periodYou are welcome to visit our factory to check our products&commawe can help you to book the hotel or ticket
The Predecessor for ZheJiang CZPTshine CZPT CO&period&commaLtd &lparCZPTly called HangZhou Xingguang Transmission CZPTry CO&time period&commaLtd&rpar State-owned military mould enterpriese which established in 1965&period
CZPTshine is located in HangZhou&commaChina and the factory covers an area of about 25000 square meters&period
Production Capacity&colonmore than half a million sets of speed reducer per year&period
The company has a strong technical force&period It has more than 400 employees at present&comma including more than 40 engineering technicians and 10 experts and senior engineers enjoying special allowances of the State Council&period
five&period3&period Our Certificates&colon
Passed ” ISO 9001 CZPT CZPT System Certificate”&comma “CZPT CZPT Credit AAA&plus&plus Ceritifacte” &comma ” Swiss SGS Certificate”&comma Iconic Brand in Chinese CZPTtromechanical CZPT”&comma “CZPT Brand of ZheJiang CZPT”&comma “Non-public CZPT and Technological CZPT in ZheJiang CZPT”&comma “National High and New-tech CZPT”&comma “TOP 50 in Chinese Gear CZPT” “2011 HangZhou CZPT and Technological R&D Center” and so on&period of time
Q&colonAre you a trading company or manufacturer&quest
A&colon The predecessor of HangZhou XG-TRANSMISSION CZPTry Co&time period&comma Ltd is State-owned Xingguanggong Mold Factory&comma a state-owned military industrial enterprise established in 1965&period It completed reform in 2002&period Since reform&comma the company has developed rapidly&period It took the lead in passing ISO9001 CZPT CZPT System Certificate and CZPT CZPT Credit AAA&furthermore&plus Certificate in 2004&comma and Swiss SGS Certificate in 2009&period It has won such titles as “Iconic Brand in Chinese CZPTtromechanical CZPT”&comma “CZPT Brand of ZheJiang CZPT”&comma “Non-public CZPT and Technological CZPT in ZheJiang CZPT”&comma “National High and New-tech CZPT”&comma and “Tope 50 in Chinese Gear CZPT” successively
Q&colonWhere do you base&quest
A&colon We are in HangZhou&commaZheJiang &commaChina&period We have two factories&commaNew factory is in Xihu (West Lake) Dis. district&commaHangZhou&commaChina and the old one is in CHangZhou District&commaHangZhou&commaChina&interval
Q&colonWhat kinds of gearbox can you produce for us&quest
A&colonMain products of our company&colon JWB-X series mechanical continuously variable transmission&comma RV series worm gear reducer&comma B&solJXJ cycloidal pin gear speed reducer&comma NCJ series gear reducer&comma and R&comma S&comma K&comma and F series helical-tooth reducer&comma more than one hundred models and thousands of specifications&period
Q&colonWhat are the application of the gearbox&quest
A&colonCZPT are widely used in ceramic&comma glass&comma food&comma metallurgy&comma beer & drink&comma printing and dyeing&comma textile&comma petrochemical engineering&comma warehouse logistics&comma wood-working machine&comma environmental protection equipment&comma printing and packaging&comma pharmacy&comma and leather&period CZPT are sold in some countries and regions&comma such as CZPTe&comma CZPTica&comma and CZPT Asia&comma and it possesses dozens of distributors and after-sale service agents&interval
Q&colonWhat is the material you use&quest
A&colon Aluminum case &lpar For the RV series worm gearbox&commamodel RV030-one zero five&rpar
Cast iron&lparFor the RV series worm gearbox&comma model RV110-a hundred and fifty&comma For the NCJ &solF&solR&solS&solK series helical gear reducer&rpar