China factory M4705160es4a Concrete Mixer Spare Parts Screw Conveyor Gear Reducer worm gearbox

Product Description

Product Description

DESCRIPTION:
Gear reducers are enclosed helical gears with hollow inputs.
The gear is mounted directly on the input shaft of the gear and receives support from a motor mounting bracket mounted on the machine housing. 
No additional parts are required to transfer torque from the reducer to the machine.
It can be mounted in vertical, horizontal or inclined position.
Shaft-mounted gear reducers typically have 5:1 7:1 10:1 reduction ratios and output speeds ranging from 1 to 300 rpm.

M4 series gear reducer can be installed directly on screw conveyors and feeders with a XUH seal installed on the output shaft of the gearbox. 
Ensure that cement, and fly ash powder will not get into the gearbox and extend the service life of the gearbox.
More suitable for bulk materials, grain and aggregate handling industries

 

WORKING PRINCIPLE:
M4 series gearboxes come in 5 sizes (M41 / M43 / M45 / M47 / M49). 
Nominal gear ratios are in accordance with Ra 10 CHINAMFG 2017 (5, 6, 7, 10). Cylindrical gears with helicoidal teeth. 
M4 series gearboxes can be mounted directly on screws: in this case, the XUH type output shaft seal is usually installed. 
M4 series gearboxes are supplied with grease for use at ambient temperatures (0°C – 40°C).

PROPERTIES:
– Helical gearbox
– Nominal torque that can be transferred to the output shaft: up to 1500 Nm.
– Installed power at the input up to 30 kW.
– Operation at ambient temperature (0°C – 40°C).
– DIN 5482 involute spline output shafts
– Flange mounting on motor and output side
– Precision-machined cylindrical bevel gears with teeth.
– Flange mounting on motor and output side

BENEFITS:
– Easy installation
– Quick maintenance
– Low installation costs

 

 

 

Services

 

Pre-sales Commitment

1. For user inquiries, quick response, warm reception, and answer all questions.
2. Provide detailed design information free of charge within 24 hours.

Commitment in Sales

1. All ex-factory products meet the quality standards specified in the contract. All products are tested according to customer requirements before delivery.
2. After the contract is signed, the customers are welcome to the site of our company for supervision.

After-sales Commitment

1. We provide technical support for customers. If necessary, the product can be debugged on-site, and relevant operators can be trained to solve user problems.
2.  24 hours to solve the problems for customers. Product use a day, a day of service.
3. Set up a high-quality service team, and set up product files for regular return visits.

Application: Machinery
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Layout: Coaxial
Gear Shape: Conical – Cylindrical Gear
Step: Four-Step
Samples:
US$ 100/Piece
1 Piece(Min.Order)

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Customization:
Available

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screw gear

Are screw gears suitable for high-torque applications?

Using screw gears, also known as worm gears, in high-torque applications requires careful consideration. The torque capacity of screw gears can be a limiting factor due to their unique design and characteristics. Here’s a detailed explanation of the suitability of screw gears for high-torque applications:

Yes, screw gears can be suitable for high-torque applications, but there are certain limitations to consider:

  • Lower Torque Capacity: Screw gears generally have a lower torque capacity compared to other gear types, such as spur gears or helical gears. The sliding contact between the worm gear and worm wheel, coupled with the high gear ratios typically associated with screw gears, can result in higher contact stresses and increased wear. Therefore, screw gears are generally not the first choice for applications with extremely high torque requirements.
  • Efficiency and Heat Generation: In high-torque applications, the efficiency of the gear system becomes crucial. Screw gears, due to their sliding motion and higher friction compared to other gear types, can have lower mechanical efficiency. This lower efficiency leads to increased heat generation, which may be a concern in high-torque applications where heat dissipation becomes challenging. Proper lubrication, cooling, and heat management strategies are important to ensure reliable operation under high torque conditions.
  • Load Distribution: The load distribution in a screw gear mechanism is not as uniform as in some other gear types. The load is concentrated on a limited number of teeth, which can lead to higher tooth stresses and potential wear. This concentration of load can be a limiting factor in high-torque applications, as it can result in premature gear failure or reduced lifespan.
  • Application-Specific Considerations: While screw gears may have limitations in high-torque applications, there are scenarios where they can still be suitable. For example, in applications that require precise positioning, heavy loads, or the ability to hold position without additional braking mechanisms, the self-locking feature of screw gears can be advantageous. Additionally, advancements in gear design, materials, and lubrication can help improve the torque capacity and performance of screw gears in specific high-torque applications.

When considering the use of screw gears in high-torque applications, it is important to carefully evaluate the specific torque requirements, operating conditions, and other factors such as speed, duty cycle, and environmental considerations. Consulting with experienced engineers and conducting thorough analysis will help determine whether screw gears are suitable or if alternative gear types should be considered to meet the high-torque demands of the application.

screw gear

Can screw gears be used in automotive applications?

Yes, screw gears, also known as worm gears, can be used in various automotive applications. While other types of gears, such as spur gears and helical gears, are more commonly found in automotive systems, screw gears offer certain advantages that make them suitable for specific automotive applications. Here’s a detailed explanation of using screw gears in automotive applications:

  • Steering Systems: Screw gears are commonly used in automotive steering systems, particularly in rack and pinion steering systems. The worm gear and worm wheel arrangement provides a compact and efficient means of converting rotational motion into linear motion, allowing for precise and responsive steering control. Screw gears in steering systems can offer enhanced safety, reliability, and ease of operation.
  • Convertible Roof Mechanisms: Screw gears can be utilized in convertible roof mechanisms to facilitate the opening and closing of the roof. The self-locking characteristic of screw gears is advantageous in this application, as it helps to hold the roof securely in place without the need for additional locking mechanisms. Screw gears can provide smooth and controlled operation, ensuring reliable and convenient roof operation in convertible vehicles.
  • Power Seats and Adjustable Pedals: Automotive power seats and adjustable pedals often employ screw gears to enable precise positioning adjustments. The compact design and precise motion control of screw gears make them suitable for these applications. Screw gears can offer smooth and accurate seat adjustments, enhancing comfort and ergonomics for the vehicle occupants.
  • Accessory Drives: Screw gears can be utilized in automotive accessory drives, such as windshield wiper systems and HVAC (Heating, Ventilation, and Air Conditioning) systems. The self-locking feature of screw gears can be beneficial in maintaining the position of the wiper arms or controlling the position of HVAC blend doors. Screw gears can provide reliable and precise motion control for these auxiliary systems.
  • Brake Systems: Screw gears can be employed in certain automotive brake systems, such as parking brake mechanisms. The self-locking property of screw gears can help hold the brake in the engaged position, providing additional safety and preventing unintended movement. Screw gears in brake systems can contribute to reliable parking brake operation and vehicle stability while parked.
  • Electric Vehicle Applications: With the rise of electric vehicles (EVs), screw gears are being considered for various EV applications. They can be used in electric power steering systems, electric vehicle range extenders, and other drivetrain components. Screw gears can provide efficient power transmission and precise control, supporting the performance and functionality of electric vehicles.
  • Other Specific Applications: Screw gears can find application in other specialized automotive systems, depending on the specific requirements. For example, they may be used in adjustable headlight leveling systems, throttle control mechanisms, or other systems that require precise motion control and position holding.

While screw gears may not be as prevalent in automotive applications compared to other gear types, they offer unique characteristics that make them suitable for specific functions. By considering the design requirements, load conditions, and operational parameters, screw gears can be effectively employed in automotive systems to enhance functionality, safety, and user experience.

screw gear

Are there different types of screw gears available?

Yes, there are different types of screw gears available, each with its variations in design and functionality. These variations cater to specific applications and requirements. Here are some of the commonly used types of screw gears:

  • Single-Thread Worm Gears: Single-thread worm gears have a single helical thread on the worm. They provide a relatively higher gear ratio and are commonly used in applications requiring moderate torque and precision positioning. Single-thread worm gears are widely employed in industries such as manufacturing, automotive, and machinery.
  • Multi-Thread Worm Gears: Multi-thread worm gears have multiple helical threads on the worm, typically two or more. The presence of multiple threads increases the contact area and allows for higher torque transmission. Multi-thread worm gears offer higher gear reduction ratios and are suitable for applications requiring greater torque multiplication, such as heavy-duty machinery and high-load lifting systems.
  • Fine-Pitch Worm Gears: Fine-pitch worm gears have a smaller pitch, meaning there are more teeth per unit length of the worm. This design allows for finer control and precise positioning. Fine-pitch worm gears find applications in industries where accurate motion control is critical, such as robotics, automation, and optics.
  • Coarse-Pitch Worm Gears: Coarse-pitch worm gears have a larger pitch, resulting in fewer teeth per unit length of the worm. This design provides higher torque transmission and is suitable for applications requiring heavy-duty power transmission. Coarse-pitch worm gears are commonly used in industries like manufacturing, material handling, and conveyors.
  • Right-Handed and Left-Handed Worm Gears: Screw gears can be classified as right-handed or left-handed based on the direction of the helical thread. In a right-handed worm gear, the helical thread advances in a clockwise direction when viewed from the end of the worm. In a left-handed worm gear, the helical thread advances counterclockwise. The choice between right-handed and left-handed worm gears depends on the specific application and the desired rotational direction.
  • Non-Throated and Throated Worm Gears: Non-throated worm gears have a cylindrical worm without a groove, while throated worm gears have a groove or a notch on the worm. The presence of a throat allows for greater contact between the worm and the worm wheel, increasing the gear meshing efficiency and load-carrying capacity. Throated worm gears are commonly used in applications where higher efficiency and load capacity are required.
  • Self-Locking Worm Gears: Self-locking worm gears are designed to have a high self-locking capability. The helical thread angle and the friction between the worm and the worm wheel prevent the worm wheel from backdriving the worm when the system is at rest. Self-locking worm gears are widely used in applications that require holding a position without the need for additional braking or locking mechanisms, such as elevators, lifts, and positioning systems.

These are some of the different types of screw gears available in the market. The selection of a specific type depends on factors such as torque requirements, gear reduction ratio, precision positioning, load capacity, and self-locking capabilities, among others. Understanding the characteristics and variations of screw gears allows for choosing the most suitable type for a given application.

China factory M4705160es4a Concrete Mixer Spare Parts Screw Conveyor Gear Reducer worm gearboxChina factory M4705160es4a Concrete Mixer Spare Parts Screw Conveyor Gear Reducer worm gearbox
editor by CX 2023-10-25

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