China supplier Pinion Spur Large CZPT Custom Forging Ball Mill Gear Helical Wheel Gear Made in China with Great quality

Product Description

Pinion Spur Large CHINAMFG Custom Forging Ball Mill Gear Helical Wheel Gear Made In China

There are many types of gears such as spur gears, helical gears, bevel gears, worm gears, gear rack, etc. These can be broadly classified by looking at the positions of axes such as parallel shafts, intersecting shafts and non-intersecting shafts.

It is necessary to accurately understand the differences among gear types to accomplish necessary force transmission in mechanical designs. Even after choosing the general type, it is important to consider factors such as: dimensions (module, number of teeth, helix angle, face width, etc.), standard of precision grade (ISO, AGMA, DIN), need for teeth grinding and/or heat treating, allowable torque and efficiency, etc.

Spur Gear

Gears having cylindrical pitch surfaces are called cylindrical gears. Spur gears belong to the parallel shaft gear group and are cylindrical gears with a tooth line which is straight and parallel to the shaft. Spur gears are the most widely used gears that can achieve high accuracy with relatively easy production processes. They have the characteristic of having no load in the axial direction (thrust load). The larger of the meshing pair is called the gear and smaller is called the pinion.

 

Helical Gear
Helical gears are used with parallel shafts similar to spur gears and are cylindrical gears with winding tooth lines. They have better teeth meshing than spur gears and have superior quietness and can transmit higher loads, making them suitable for high speed applications. When using helical gears, they create thrust force in the axial direction, necessitating the use of thrust bearings. Helical gears come with right hand and left hand twist requiring opposite hand gears for a meshing pair.

Gear Rack

Same sized and shaped teeth cut at equal distances along a flat surface or a straight rod is called a gear rack. A gear rack is a cylindrical gear with the radius of the pitch cylinder being infinite. By meshing with a cylindrical gear pinion, it converts rotational motion into linear motion. Gear racks can be broadly divided into straight tooth racks and helical tooth racks, but both have straight tooth lines. By machining the ends of gear racks, it is possible to connect gear racks end to end.

 

 

Bevel Gear

Bevel gears have a cone shaped appearance and are used to transmit force between 2 shafts which intersect at 1 point (intersecting shafts). A bevel gear has a cone as its pitch surface and its teeth are cut along the cone. Kinds of bevel gears include straight bevel gears, helical bevel gears, spiral bevel gears, miter gears, angular bevel gears, CHINAMFG gears, zerol bevel gears and hypoid gears.

 

Screw Gear

Screw gears are a pair of same hand helical gears with the twist angle of 45° on non-parallel, non-intersecting shafts. Because the tooth contact is a point, their load carrying capacity is low and they are not suitable for large power transmission. Since power is transmitted by the sliding of the tooth surfaces, it is necessary to pay attention to lubrication when using screw gears.

 

Worm Gear

A screw shape cut on a shaft is the worm, the mating gear is the worm wheel, and together on non-intersecting shafts is called a worm gear. Worms and worm wheels are not limited to cylindrical shapes. There is the hour-glass type which can increase the contact ratio, but production becomes more difficult. Due to the sliding contact of the gear surfaces, it is necessary to reduce friction. For this reason, generally a hard material is used for the worm, and a soft material is used for worm wheel. Even though the efficiency is low due to the sliding contact, the rotation is smooth and quiet. When the lead angle of the worm is small, it creates a self-locking feature.

 

 

Internal gear

Internal gears have teeth cut on the inside of cylinders or cones and are paired with external gears. The main use of internal gears are for planetary gear drives and gear type shaft couplings. There are limitations in the number of teeth differences between internal and external gears due to involute interference, trochoid interference and trimming problems. The rotational directions of the internal and external gears in mesh are the same while they are opposite when 2 external gears are in mesh.

 

Product name

Spur Gear & Helical Gear & Gear Shaft

Materials Available

Stainless Steel, Carbon Steel, Brass, Bronze, Iron, Aluminum Alloy etc

Heat Treatment

Quenching & Tempering, Carburizing & Quenching, High-frequency Hardening, Carbonitriding……

Surface Treatment

Carburizing and Quenching,Tempering ,Tooth suface high quenching Hardening,Tempering

BORE

Finished bore, Pilot Bore, Special request

Processing Method

Molding, Shaving, Hobbing, Drilling, Tapping, Reaming, Manual Chamfering, Grinding etc

Pressure Angle

20 Degree

Hardness

55- 60HRC

Size

Customer Drawings & ISO standard

Package

Wooden Case/Container and pallet, or made-to-order

Certificate

ISO9001:2008

Machining Process

Gear Hobbing, Gear Milling, Gear Shaping, Gear Broaching, Gear Shaving, Gear Grinding and Gear Lapping

Applications

Toy, Automotive, instrument, electrical equipment, household appliances, furniture, mechanical equipment,daily living equipment,
electronic sports equipment, , sanitation machinery, market/ hotel equipment supplies, etc.

Advantages

1. Produce strictly in accordance with ANSI or DIN standard dimension
2. Material: SCM 415 steel
3. Bore: Finished bore
4. Precision grade: DIN 5 to DIN 7
5. Surface treatment: Carburizing and Quenching
6. Module: From 1 to 4
7. Tooth: From Z15 to Z70

 

Product Process


Application:

About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.

Our Service:

FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service. 
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Motor, Machinery, Marine, Agricultural Machinery, Mining, Petroleum, Automatic,Excavator,Crane,
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Toothed Portion Shape: Helical Bevel Gear
Material: Stainless Steel
Type: Non-Circular Gear
Customization:
Available

|

Customized Request

gear pump

What are the safety considerations when using gear pump systems?

When using gear pump systems, several safety considerations should be taken into account. Here’s a detailed explanation:

1. Pressure and Temperature Ratings:

Ensure that the gear pump system components, including the pump itself, piping, and fittings, are appropriately rated for the operating pressure and temperature. Exceeding these limits can lead to component failure, leaks, or other safety hazards. Refer to the manufacturer’s specifications and guidelines to ensure compliance with the recommended pressure and temperature ratings.

2. Proper Installation:

Follow proper installation procedures to ensure the gear pump system is securely and accurately installed. Improper installation can lead to leaks, misalignment, or excessive vibrations, which can compromise the safety and performance of the system. Adhere to manufacturer instructions and industry standards for installation practices.

3. Electrical Safety:

If the gear pump system is powered by electricity, adhere to electrical safety guidelines. Ensure proper grounding, use appropriate circuit protection devices, and follow electrical codes and regulations. Regularly inspect electrical connections and wiring for any signs of damage or wear, and address any issues promptly.

4. Hazardous Materials Handling:

If the gear pump system is used to transfer hazardous materials, such as flammable or toxic substances, additional safety measures should be implemented. Follow proper protocols for handling, storage, and disposal of hazardous materials. Use appropriate personal protective equipment (PPE) and ensure proper ventilation in the working area to minimize exposure risks.

5. Emergency Shutdown Procedures:

Establish clear and accessible emergency shutdown procedures for the gear pump system. Ensure that all personnel involved in operating or maintaining the system are familiar with these procedures. This includes knowing how to quickly and safely shut down the system in case of emergencies, such as leaks, equipment malfunctions, or other hazardous situations.

6. Regular Maintenance and Inspection:

Implement a regular maintenance and inspection schedule for the gear pump system. This includes routine checks for leaks, abnormal vibrations, unusual noises, or any signs of wear or damage. Proper lubrication, seal replacement, and cleaning should also be performed according to the manufacturer’s recommendations. Regular maintenance helps identify and address potential safety issues before they escalate.

7. Operator Training:

Ensure that operators and maintenance personnel receive proper training on the safe operation and maintenance of the gear pump system. Training should cover system operation, safety protocols, emergency procedures, and the use of any required personal protective equipment (PPE). Well-trained personnel are essential for safe and efficient operation of the gear pump system.

It is important to note that the above considerations serve as general guidelines, and specific safety requirements may vary depending on the application, industry, and local regulations. Consulting with safety professionals and referring to industry standards and guidelines can provide further guidance on ensuring the safe use of gear pump systems.

gear pump

Can gear pumps be used for both liquid and gas pumping?

Gear pumps are primarily designed for liquid pumping and are not typically used for pumping gases. Here’s a detailed explanation:

1. Liquid Pumping:

Gear pumps are widely used for pumping various types of liquids, including water, oils, fuels, chemicals, and viscous fluids. The positive displacement action of gear pumps allows them to efficiently move liquids by trapping and displacing a fixed volume of fluid with each revolution of the gears. The close tolerances between the gear teeth and the pump housing help minimize leakage and ensure effective liquid transfer.

2. Gas Pumping:

Unlike liquids, gases are highly compressible and have significantly lower densities. The design and operation of gear pumps are not well-suited for pumping gases due to the following reasons:

  • Compression: Gear pumps are not designed to compress gases. When a gas is introduced into the pump’s chamber, it will compress as the gears rotate, leading to increased pressure and reduced volume. This can cause excessive strain on the pump and its components, potentially leading to damage or failure.
  • Leakage: Gear pumps rely on close tolerances and tight clearances to minimize leakage in liquid applications. However, these tight clearances are not effective for handling gases, which can easily leak through the small gaps between the gear teeth and the pump housing. This leakage can result in poor efficiency and loss of pumping performance.
  • Flow Characteristics: Gases have different flow characteristics compared to liquids. Gear pumps are specifically designed to handle the viscosity and flow properties of liquids, including their lubricating properties. Gases lack these characteristics, and the gear pump’s design may not provide the necessary sealing and lubrication required for efficient gas pumping.

3. Alternative Technologies:

For gas pumping applications, other types of pumps are typically used, such as centrifugal pumps, diaphragm pumps, rotary vane pumps, or specialized gas pumps. These pumps are specifically designed to handle the unique properties of gases, including their compressibility and low density. They incorporate features like gas-tight seals, variable displacement mechanisms, and specialized materials to ensure efficient and reliable gas transfer.

In summary, gear pumps are primarily designed for liquid pumping applications. While they excel at efficiently transferring liquids, their design characteristics and limitations make them unsuitable for pumping gases. For gas pumping, it is recommended to use pumps specifically designed for handling gases to ensure optimal performance and reliability.

gear pump

How does a gear pump contribute to pumping viscous fluids?

A gear pump is particularly effective in pumping viscous fluids due to several contributing factors. Here’s a detailed explanation:

1. Positive Displacement:

One of the key advantages of gear pumps is their positive displacement operation. As the gears rotate, they create expanding and contracting chambers between the gear teeth and the pump casing. This positive displacement action effectively traps and carries a fixed volume of fluid with each revolution, regardless of its viscosity.

2. Close Tolerance Design:

Gear pumps are designed with close tolerances between the gears and between the gears and the casing. This tight clearance helps to minimize internal leakage and slippage of the fluid, ensuring efficient transfer of even highly viscous fluids. The close tolerance design also contributes to the pump’s ability to generate high pressures, which may be required when pumping viscous fluids.

3. Gear Tooth Geometry:

The gear tooth geometry of a gear pump plays a significant role in pumping viscous fluids. Gear pumps typically use gears with large tooth clearances and relatively large tooth depths. This design allows for better fluid flow and reduces the likelihood of fluid entrapment between the gear teeth. The gear tooth geometry promotes smoother and more effective displacement of viscous fluids.

4. Slow Speed Operation:

Pumping viscous fluids often requires slower pump speeds to maintain efficient flow. Gear pumps are well-suited for this purpose as they can operate at lower speeds without sacrificing their positive displacement characteristics. The slower speed allows the fluid more time to fill the expanding chambers between the gear teeth, resulting in improved pumping efficiency.

5. Heating and Insulation:

In some cases, heating the viscous fluid or insulating the pump can contribute to better fluid transfer. Gear pumps can be designed with heating or jacketing options to provide controlled heating of the fluid, reducing its viscosity and facilitating easier pumping. Insulation can also help maintain the fluid’s temperature during the pumping process, preventing excessive cooling and thickening of the fluid.

6. Material Selection:

Gear pumps can be constructed using materials that are well-suited for handling viscous fluids. Materials such as cast iron, stainless steel, or specific polymers may be chosen based on the compatibility with the viscous fluid’s characteristics. Proper material selection ensures the pump’s longevity and minimizes the risk of damage or clogging when pumping viscous fluids.

Overall, the positive displacement operation, close tolerance design, gear tooth geometry, slow speed operation, heating and insulation options, and material selection of gear pumps collectively contribute to their effectiveness in pumping viscous fluids. These factors enable gear pumps to handle a wide range of viscosities and ensure efficient fluid transfer in various industrial applications.

China supplier Pinion Spur Large CZPT Custom Forging Ball Mill Gear Helical Wheel Gear Made in China with Great qualityChina supplier Pinion Spur Large CZPT Custom Forging Ball Mill Gear Helical Wheel Gear Made in China with Great quality
editor by Dream 2024-05-03

gear pump

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