Product Description
Amarillo single reduction gear reducer supplied for Marley cooling towers
- The drives Amarillo Gear Company LLC produces for cooling tower, design features and ratings are in accordance with, or exceed, the minimum requirements of AG MA (American Gear Manufacturers Association) and CTI (Cooling Technology Institute) standards. Service Factor= 2.0. The wide application in many brands cooling towers, like Marley, BAC, EVAPCO etc.
Housing and Castings
Castings are rigidly designed and constructed to absorb internal and external loads with minimum deflection. Gear cases are pre-drilled with pilot holes to assist in installation of dowel pins.
Spiral Bevel Gears
Designed and manufactured by Amarillo Gear Company LLC for fan drive service.All spiral bevel gears are precision machined from high grade alloy steel, case hardened and lapped in pairs.
Helical Gears
Helical gears are designed specifically for fan drive service and are precision machined from high grade alloy steel, case hardened and precision ground to provide low-noise, low vibration operation.
Bearings
Amarillo Gear is an industry leader with L10a bearing life exceeding 100,000 hours on all bearings. Input and intermediate bearings provide double the service life specified in AG MA and CTI standards, resulting in lower maintenance costs. The fan shaft bearings are designed to carry all loads imposed by the fan while maintaining this outstanding bearing life. Only trusted name brand bearings such as CHINAMFG and CHINAMFG are installed in Amarillo fan drives.
Quiet Operation
Quiet operation of the Amarillo Fan Drives is achieved through careful design and controlled manufacturing methods of components.
Shaft Seals
Both the input and output shaft openings have 2 spring-loaded, single-lip seals to keep outside contamination from entering the gearbox.
Lubrication
Oversized slinger on the input shaft provides excellent lubrication in either direction or at half speed operation.
Low Speed Operation
For operation when motor speeds are less than 450 rpm, single reduction fan drives require Amarillo Gear's exclusive KLow Speed" option, and double reduction fan drives require a mechanical oil pump for proper lubrication. The addition of these options allow operation with no minimum input speed restrictions.
Service Openings
Large inspection opening facilitates periodic inspections.
| TABLE 1.- SINGLE REDUCTION | |||||||||||||||||||||
| Service Horsepower Ratings (HP) at (Service Factor = 2.0) | |||||||||||||||||||||
| Model | Input (RPM) |
Ratio* Nominal Ratio (See Table 2. for exact ratio) | |||||||||||||||||||
| 2.0 | 2.5 | 3.0 | 3.25 | 3.5 | 3.75 | 4.0 | 4.25 | 4.5 | 4.75 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | 7.5 | 8.0 | 8.5 | 9.0 | 9.5 | ||
| 65 | 1750 1450 1160 |
25 21 17 |
25 21 17 |
20 17 13 |
18 15 12 |
17 14 11 |
15 12 10 |
12 10 8 |
10 8 7 |
||||||||||||
| 85 | 1750 1450 1160 |
48 40 32 |
45 37 30 |
43 36 29 |
39 32 26 |
36 30 24 |
33 27 22 |
32 26 21 |
28 23 19 |
27 22 18 |
25 21 17 |
20 17 13 |
18 15 12 |
15 12 10 |
15 12 10 |
||||||
| 110 | 1750 1450 1160 |
75 62 50 |
74 61 49 |
72 60 48 |
71 59 47 |
69 57 46 |
64 53 42 |
60 50 40 |
46 38 30 |
40 33 27 |
33 27 22 |
30 25 20 |
25 21 17 |
24 20 16 |
|||||||
| 135 | 1750 1450 1160 |
110 91 73 |
93 77 62 |
88 73 58 |
83 69 55 |
71 59 47 |
65 54 43 |
59 49 39 |
48 40 32 |
43 36 29 |
42 35 28 |
35 29 23 |
30 25 20 |
||||||||
| 155 | 1750 1450 1160 |
110 91 73 |
100 83 66 |
90 75 60 |
85 70 56 |
75 62 50 |
65 54 43 |
55 46 36 |
50 41 33 |
45 37 30 |
|||||||||||
| 175 | 1750 1450 1160 |
133 110 88 |
126 104 84 |
112 93 74 |
105 87 70 |
100 83 66 |
80 66 53 |
60 50 40 |
60 50 40 |
60 50 40 |
50 41 33 |
||||||||||
| TABLE 2.- EXACT RATIO | ||||||||||||||||||||
| Model | 2.0 | 2.5 | 3.0 | 3.25 | 3.5 | 3.75 | 4.0 | 4.25 | 4.5 | 4.75 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | 7.5 | 8.0 | 8.5 | 9.0 | 9.5 |
| 65 | 2.00 | 2.47 | 2.94 | 3.27 | 3.54 | 3.92 | 4.55 | 4.90 | ||||||||||||
| 85 | 2.56 | 3.00 | 3.23 | 3.50 | 3.75 | 4.00 | 4.27 | 4.55 | 4.70 | 5.00 | 5.56 | 6.00 | 6.56 | 7.00 | ||||||
| 110 | 3.46 | 3.77 | 4.00 | 4.25 | 4.45 | 4.73 | 5.00 | 5.50 | 6.00 | 6.56 | 7.00 | 7.50 | 8.00 | |||||||
| 135 | 4.00 | 4.50 | 4.73 | 5.00 | 5.50 | 6.00 | 6.56 | 7.00 | 7.50 | 8.00 | 8.57 | 9.00 | ||||||||
| 155 | 5.08 | 5.58 | 6.00 | 6.56 | 7.11 | 7.56 | 8.00 | 8.50 | 9.00 | |||||||||||
| 175 | 5.08 | 5.58 | 6.09 | 6.60 | 7.10 | 7.56 | 8.13 | 8.50 | 9.14 | 9.57 | ||||||||||
Main information need to be provided for supplying:Motor power &Reduction ratio
Installation size ( customized): out put shaft length, shaft diameter & key ( width x depth)
If any special requirements, please consult CHINAMFG sales representative.
NEWIN supplys kinds of superior gear reducer for different cooling tower fan drive systems
NEWIN COOLING TOWER FACTORY
NEWIN manufactures and stocks all major cooling tower accessories to meet maintenance and replacement needs of almost any size and types of cooling tower. Please contact us to customize the cooling tower accessories you need.
| Cooling Method: | Counter Flow or Cross Flow |
|---|---|
| Ventilation Mode: | Natural Ventilation |
| Material: | Metal |
| Air Contact Form: | Dry |
| Air Contact Way: | Open |
| Tower Shape: | Round and Square |
| Customization: |
Available
| Customized Request |
|---|
How do manufacturers ensure the precision of gear tooth profiles in gear reducers?
Manufacturers employ several techniques to ensure the precision of gear tooth profiles in gear reducers, which is crucial for optimal performance and efficiency:
1. Precision Machining: Gear teeth are typically machined using advanced CNC (Computer Numerical Control) machines that can achieve high levels of accuracy and repeatability. This ensures consistent gear tooth profiles across multiple components.
2. Quality Control Measures: Rigorous quality control processes, such as dimensional inspections and profile measurements, are performed at various stages of manufacturing to verify that gear tooth profiles meet the required specifications.
3. Tooth Profile Design: Engineers use specialized software and simulation tools to design gear tooth profiles with precise involute shapes and accurate dimensions. These designs are then translated into machine instructions for manufacturing.
4. Material Selection: High-quality materials with excellent wear resistance and dimensional stability are chosen to minimize the potential for deformation or inaccuracies during machining and operation.
5. Heat Treatment: Heat treatment processes, such as carburizing and quenching, are applied to enhance the surface hardness and durability of gear teeth, reducing the risk of wear and deformation over time.
6. Tooth Grinding and Finishing: After initial machining, gear teeth often undergo precision grinding and finishing processes to achieve the desired tooth profile accuracy and surface finish.
7. Post-Processing Inspection: Gear tooth profiles are inspected again after manufacturing processes to verify that the final components meet the specified tolerances and performance criteria.
8. Computer-Aided Manufacturing (CAM): CAM software is used to generate tool paths and machining instructions, enabling precise control over tool movements and material removal during gear manufacturing.
By combining these techniques and leveraging advanced manufacturing technologies, manufacturers can achieve the necessary precision in gear tooth profiles, resulting in reliable and efficient gear reducers for various industrial applications.
How do gear reducers ensure efficient power transmission and motion control?
Gear reducers play a vital role in ensuring efficient power transmission and precise motion control in various industrial applications. They achieve this through the following mechanisms:
- 1. Speed Reduction/Increase: Gear reducers allow you to adjust the speed between the input and output shafts. Speed reduction is essential when the output speed needs to be lower than the input speed, while speed increase is used when the opposite is required.
- 2. Torque Amplification: By altering the gear ratio, gear reducers can amplify torque from the input to the output shaft. This enables machinery to handle higher loads and provide the necessary force for various tasks.
- 3. Gear Train Efficiency: Well-designed gear trains within reducers minimize power losses during transmission. Helical and spur gears, for example, offer high efficiency by distributing load and reducing friction.
- 4. Precision Motion Control: Gear reducers provide precise control over rotational motion. This is crucial in applications where accurate positioning, synchronization, or timing is required, such as in robotics, CNC machines, and conveyor systems.
- 5. Backlash Reduction: Some gear reducers are designed to minimize backlash, which is the play between gear teeth. This reduction in play ensures smoother operation, improved accuracy, and better control.
- 6. Load Distribution: Gear reducers distribute the load evenly among multiple gear teeth, reducing wear and extending the lifespan of the components.
- 7. Shock Absorption: In applications where sudden starts, stops, or changes in direction occur, gear reducers help absorb and dampen shocks, protecting the machinery and ensuring reliable operation.
- 8. Compact Design: Gear reducers provide a compact solution for achieving specific speed and torque requirements, allowing for space-saving integration into machinery.
By combining these principles, gear reducers facilitate the efficient and controlled transfer of power, enabling machinery to perform tasks accurately, reliably, and with the required force, making them essential components in a wide range of industries.
Function of Gear Reducers in Mechanical Systems
A gear reducer, also known as a gear reduction unit or gearbox, is a mechanical device designed to reduce the speed of an input shaft while increasing its torque output. It accomplishes this through the use of a set of interlocking gears with different sizes.
The primary function of a gear reducer in mechanical systems is to:
- Speed Reduction: The gear reducer takes the high-speed rotation of the input shaft and transmits it to the output shaft through a set of gears. The gears are configured in such a way that the output gear has a larger diameter than the input gear. As a result, the output shaft rotates at a lower speed than the input shaft, but with increased torque.
- Torque Increase: Due to the size difference between the input and output gears, the torque applied to the output shaft is greater than that of the input shaft. This torque multiplication allows the system to handle heavier loads and perform tasks requiring higher force.
Gear reducers are widely used in various industries and applications where it's necessary to adapt the speed and torque characteristics of a power source to meet the requirements of the driven equipment. They can be found in machinery such as conveyor systems, industrial machinery, vehicles, and more.
editor by CX 2023-11-20