China Professional Helical Gear Unit with 380V/660V Helical Worm Gear Motor 4 Phase Electric Motor 0.12kw- 22kw wholesaler

Product Description

Helical Gear Unit with 380V/660V helical worm gear motor 4 Phase Electric Motor 0.12KW- 22KW
 

Input Configurations

Direct motor coupled

With IEC B5/B14 motor flange

With IEC B5/B14 motor mounted

With CHINAMFG input shaft

Output Configurations

 

CHINAMFG output shaft

CHINAMFG output shaft with flange

Hollow output shaft

Hollow output shaft with flange

Variants of the Helical Worm Gear Unit Series S / SF / SA / SAF

Foot- or flange-mounted

B5 or B14 flange-mounted

CHINAMFG shaft or hollow shaft

Hollow shaft with keyed connection, shrink disk, splined hollow shaft, or Torque Arm

Technical Data:

Housing material Cast iron/Ductile iron
Housing hardness HBS190-240
Gear material 20CrMnTi alloy steel
Surface hardness of gears HRC58°~62 °
Gear core hardness HRC33~40
Input / Output shaft material 42CrMo alloy steel
Input / Output shaft hardness HRC25~30
Machining precision of gears accurate grinding, 6~5 Grade
Lubricating oil GB L-CKC220-460, Shell Omala220-460
Heat treatment tempering, cementiting, quenching, etc.
Efficiency 94%~96% (depends on the transmission stage)
Noise (MAX) 60~68dB
Temp. rise (MAX) 40°C
Temp. rise (Oil)(MAX) 50°C
Vibration ≤20µm
Backlash ≤20Arcmin
Brand of bearings China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, NSK.
Brand of oil seal NAK — ZheJiang or other brands requested

 

Main applied for

Harbor and shipping
Hoist and transport
Electric power
Coal mining
Cement and construction
Paper and light industry

Specification

Model

Shaft Dia.

mm

Horizontal Center Height mm

External Flange Dia.

 mm

Power

(kw)

Ratio

(i)

Nominal Torque

(Nm)

CHINAMFG Shaft

Hollow Shaft

S/SF/SA/SAF37

ф20

ф20

88

 

0.12-0.55

24-204

100

S/SF/SA/SAF47

ф25

ф30 / ф25

100

160

0.18-0.75

24-204

150

S/SF/SA/SAF57

ф30

ф35 / ф30

112

200

0.75-1.5

24-204

250

S/SF/SA/SAF67

ф35

ф45 /ф40

140

200

0.75-3

24-285

460

S/SF/SA/SAF77

ф45

ф60 / ф50

180

250

0.75-7.5

24-385

1200

S/SF/SA/SAF87

ф60

ф70 / ф60

225

350

1.1-11

24-389

2000

S/SF/SA/SAF97

ф70

ф90 / ф70

280

450

1.5-18.5

24-389

3500

Company profile

Scenario

Packing

FAQ

Q1: I want to buy your products, how can I pay?
A: You can pay via T/T(30%+70%), L/C ,D/P etc. 

Q2: How can you guarantee the quality?
A: One year’s warranty against B/L date. If you meet with quality problem, please send us pictures or video to check, we promise to send spare parts or new products to replace. Our guarantee not include inappropriate operation or wrong specification selection. 

Q3: How we select models and specifications?
A: You can email us the series code (for example: RC series helical gearbox) as well as requirement details, such as motor power,output speed or ratio, service factor or your application…as much data as possible. If you can supply some pictures or drawings,it is nice. 

Q4: If we don’t find what we want on your website, what should we do?
A: We offer 3 options:
1, You can email us the pictures, drawings or descriptions details. We will try to design your products on the basis of our
standard models.
2, Our R&D department is professional for OEM/ODM products by drawing/samples, you can send us samples, we do customized design for your bulk purchasing.
3, We can develop new products if they have good market. We have already developed many items for special using successful, such as special gearbox for agitator, cement conveyor, shoes machines and so on. 

Q5: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.

Q6: How about your product delivery time?
A: Normally for 20’container, it takes 25-30 workdays for RV series worm gearbox, 35-40 workdays for helical gearmotors. /* 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, Motorcycle, Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: M1-M6
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Double-Step
Customization:
Available

|

Customized Request

gear pump

How does a gear pump handle variations in fluid viscosity?

A gear pump is capable of handling variations in fluid viscosity effectively. Here’s a detailed explanation:

1. Positive Displacement Operation:

One of the key features of a gear pump is its positive displacement operation. Regardless of the fluid’s viscosity, the pump delivers a consistent flow rate with each revolution of the gears. The pump traps and displaces a fixed volume of fluid with each rotation, ensuring that the same amount of fluid is moved regardless of changes in viscosity. This positive displacement action allows the gear pump to handle variations in fluid viscosity and maintain accurate and consistent fluid delivery.

2. Viscosity Range:

Gear pumps are designed to handle fluids with a wide range of viscosities. They can effectively handle low-viscosity liquids as well as highly viscous fluids. The pump’s positive displacement mechanism ensures that the fluid is moved at a consistent rate, regardless of its viscosity. This makes gear pumps versatile and suitable for various applications where fluids of different viscosities need to be pumped.

3. Self-Priming Capability:

Gear pumps have a self-priming capability, which means they can draw fluid into the pump without the need for additional priming mechanisms. This self-priming feature allows gear pumps to handle fluids of varying viscosities, including thicker or more viscous fluids that may be difficult to pump with other types of pumps. The gears create a vacuum effect that draws the fluid into the pump, enabling efficient operation even with varying viscosities.

4. Temperature Considerations:

Fluid viscosity can be affected by temperature variations. Gear pumps are designed to handle a wide range of temperatures, allowing them to accommodate changes in fluid viscosity due to temperature fluctuations. It’s important to consider the temperature limits specified by the pump manufacturer to ensure optimal performance and prevent any adverse effects on the pump or the pumped fluid.

5. Material Selection:

The choice of materials used in the construction of gear pumps can also contribute to their ability to handle variations in fluid viscosity. The materials should be selected based on the compatibility with the range of viscosities and potential chemical properties of the fluids being pumped. Proper material selection helps ensure that the pump can effectively handle the fluid without significant variations in flow rate or delivery accuracy.

In summary, gear pumps handle variations in fluid viscosity through their positive displacement operation, designed viscosity range, self-priming capability, consideration of temperature effects, and appropriate material selection. These features make gear pumps versatile and reliable for pumping fluids with different viscosities in various applications.

gear pump

What is the significance of gear pump size and construction materials?

The size and construction materials of a gear pump play a significant role in its performance, durability, and suitability for specific applications. Here’s a detailed explanation:

1. Size:

The size of a gear pump refers to its physical dimensions, including the overall dimensions, shaft diameter, and gear dimensions. The size of a gear pump is important for the following reasons:

  • Flow Rate and Pressure: The size of the pump affects its flow rate and pressure capabilities. Larger gear pumps generally have higher flow rates and can handle higher pressures, while smaller gear pumps are suitable for lower flow rate and pressure requirements. Selecting the appropriate pump size ensures that it can meet the specific demands of the application.
  • Space Constraints: The physical size of the pump is crucial when space is limited. In compact installations or applications with restricted space, smaller gear pumps are preferred to optimize the use of available space.
  • System Integration: The size of the gear pump needs to align with the overall system design and integration. It should fit seamlessly into the system, considering factors such as mounting options, piping connections, and available space for maintenance and repairs.

2. Construction Materials:

The choice of construction materials for a gear pump is important for several reasons:

  • Chemical Compatibility: Different fluids have varying chemical properties, and certain fluids may be corrosive or reactive with certain materials. Selecting appropriate construction materials ensures compatibility with the fluid being pumped, preventing chemical reactions, degradation, or contamination of the fluid and the pump itself.
  • Mechanical Strength: Construction materials determine the mechanical strength and durability of the pump. The materials should be able to withstand the operating conditions, including pressure, temperature, and mechanical stresses, without deformation, fatigue, or failure. Common materials used for gear pump construction include cast iron, stainless steel, bronze, and specialized alloys.
  • Viscosity Handling: The construction materials can impact the pump’s ability to handle fluids with different viscosities. Some materials may have a lower resistance to wear or may experience higher friction with viscous fluids. The materials should be selected to ensure efficient operation and minimize the risk of pump damage or reduced performance when handling fluids of varying viscosities.
  • Hygienic Requirements: In industries such as food and pharmaceuticals, where strict hygienic standards must be maintained, gear pumps can be constructed using materials that comply with sanitary guidelines. These materials are easy to clean, resistant to contamination, and meet specific regulatory requirements.

3. Application Considerations:

When selecting the size and construction materials for a gear pump, it is important to consider the specific requirements of the application. Factors such as desired flow rates, pressure ranges, fluid properties, temperature conditions, and environmental factors should be taken into account. Proper sizing and material selection ensure that the gear pump can operate efficiently, reliably, and safely in the intended application.

In summary, the size and construction materials of a gear pump significantly impact its performance, durability, and suitability for specific applications. Proper sizing ensures that the pump can meet flow rate and pressure requirements, fit into the available space, and integrate well into the system. The choice of construction materials ensures chemical compatibility, mechanical strength, viscosity handling, and compliance with application-specific requirements. Considering these factors is crucial for selecting the right gear pump for optimal performance and longevity.

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 Professional Helical Gear Unit with 380V/660V Helical Worm Gear Motor 4 Phase Electric Motor 0.12kw- 22kw wholesaler China Professional Helical Gear Unit with 380V/660V Helical Worm Gear Motor 4 Phase Electric Motor 0.12kw- 22kw wholesaler
editor by CX 2024-03-26

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gear pump

As one of leading gear pump manufacturers, suppliers and exporters of mechanical products, We offer gear pump and many other products.

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