Product Description
RV25 Series Flange Type Aluminum Material Worm Speed Gear Box Reducer
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Input Configurations |
Double or single input shaft (NRV) |
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PAM / IEC motor input shaft with circle or square flange (NMRV) |
|
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Output Configurations
|
Double or single output shaft |
|
Output flange |
Main Feature
The gearbox can rotate in both directions operate and contains 1 oil filling at delivery. you will benefit from its high quality and a short delivery time.
Specification
|
Model |
Motor Input Flange (circle) |
Transmission Ratio |
Power (kw) |
Ratio (i) |
Nominal Torque (Nm) |
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|
PAM / IEC |
Internal Dia. |
Dis. Between Diagonal Screw Holes |
External Dia. |
Width of Key Slot |
5 |
7.5 |
10 |
15 |
20 |
25 |
30 |
40 |
50 |
60 |
80 |
100 |
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|
N |
M |
P |
E |
Diamter of Input Shaft |
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|
NMRV25 |
56B14 |
50 |
65 |
80 |
3 |
9 |
– |
9 |
– |
0.06 |
7.5-60 |
2.6-14 |
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|
NMRV30 |
63B5 |
95 |
115 |
140 |
4 |
11 |
– |
0.06-0.18 |
7.5-80 |
2.6-14 |
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|
63B14 |
60 |
75 |
90 |
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|
56B5 |
80 |
100 |
120 |
3 |
9 |
– |
||||||||||||||
|
56B14 |
50 |
65 |
80 |
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|
NMRV40 |
71B5 |
110 |
130 |
160 |
5 |
14 |
– |
0.09-0.37 |
7.5-100 |
11-53 |
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|
71B14 |
70 |
85 |
105 |
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|
63B5 |
95 |
115 |
140 |
4 |
11 |
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|
63B14 |
60 |
75 |
90 |
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|
56B5 |
80 |
100 |
120 |
3 |
– |
9 |
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|
NMRV50 |
80B5 |
130 |
165 |
200 |
6 |
19 |
– |
0.12-0.75 |
7.5-100 |
21-89 |
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|
80B14 |
80 |
100 |
120 |
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|
71B5 |
110 |
130 |
160 |
5 |
14 |
– |
||||||||||||||
|
71B14 |
70 |
85 |
105 |
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|
63B5 |
95 |
115 |
140 |
4 |
– |
11 |
||||||||||||||
|
NMRV63 |
90B5 |
130 |
165 |
200 |
8 |
24 |
– |
0.25-1.5 |
7.5-100 |
56-166 |
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|
90B14 |
95 |
115 |
140 |
|||||||||||||||||
|
80B5 |
130 |
165 |
200 |
6 |
19 |
– |
||||||||||||||
|
80B14 |
80 |
100 |
120 |
|||||||||||||||||
|
71B5 |
110 |
130 |
160 |
5 |
– |
14 |
||||||||||||||
|
71B14 |
70 |
85 |
105 |
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|
NMRV75 |
100/112B5 |
180 |
215 |
250 |
8 |
– |
28 |
– |
0.55-4 |
7.5-100 |
90-269 |
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|
100/112B14 |
110 |
130 |
160 |
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|
90B5 |
130 |
165 |
200 |
8 |
24 |
– |
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|
90B14 |
95 |
115 |
140 |
|||||||||||||||||
|
80B5 |
130 |
165 |
200 |
6 |
– |
19 |
||||||||||||||
|
80B14 |
80 |
100 |
120 |
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|
71B5 |
110 |
130 |
160 |
– |
– |
14 |
||||||||||||||
|
NMRV90 |
100/112B5 |
180 |
215 |
250 |
8 |
– |
28 |
– |
0.55-4 |
7.5-100 |
101-458 |
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|
100/112B14 |
110 |
130 |
160 |
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|
90B5 |
130 |
165 |
200 |
8 |
24 |
– |
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|
90B14 |
95 |
115 |
140 |
|||||||||||||||||
|
80B5 |
130 |
165 |
200 |
6 |
– |
19 |
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|
80B14 |
80 |
100 |
120 |
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|
NMRV110 |
132B5 |
230 |
265 |
300 |
10 |
– |
38 |
– |
1.1-7.5 |
7.5-100 |
242-660 |
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|
132B14 |
130 |
165 |
200 |
– |
||||||||||||||||
|
100/112B5 |
180 |
215 |
250 |
8 |
28 |
– |
||||||||||||||
|
90B5 |
130 |
165 |
200 |
– |
24 |
|||||||||||||||
|
90B14 |
95 |
115 |
140 |
– |
||||||||||||||||
|
80B5 |
130 |
165 |
200 |
– |
19 |
|||||||||||||||
|
NMRV130 |
132B5 |
230 |
265 |
300 |
10 |
– |
38 |
– |
2.2-7.5 |
7.5-100 |
333-1596 |
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|
132B14 |
130 |
165 |
200 |
– |
||||||||||||||||
|
100/112B5 |
180 |
215 |
250 |
8 |
– |
28 |
||||||||||||||
|
90B5 |
130 |
165 |
200 |
– |
– |
24 |
||||||||||||||
|
90B14 |
95 |
115 |
140 |
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|
NMRV150 |
160B5 |
250 |
300 |
350 |
12 |
– |
42 |
– |
2.2-15 |
7.5-100 |
570-1760 |
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|
132B5 |
230 |
265 |
300 |
10 |
– |
38 |
– |
|||||||||||||
|
132B14 |
130 |
165 |
200 |
– |
||||||||||||||||
|
100/112B5 |
180 |
215 |
250 |
8 |
– |
28 |
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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.
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | B3,B6,B7,B8,V5,V6 |
| Layout: | Coaxial |
| Gear Shape: | Cylindrical Gear |
| Step: | Single-Step |
| Customization: |
Available
| Customized Request |
|---|
What are the Noise Levels Associated with Worm Gearboxes?
The noise levels associated with worm gearboxes can vary depending on several factors, including the design, quality, operating conditions, and maintenance of the gearbox. Here are some key points to consider:
- Design and Quality: Well-designed and high-quality worm gearboxes tend to produce lower noise levels. Factors such as gear tooth profile, precision manufacturing, and proper alignment can contribute to reduced noise.
- Gear Engagement: The way the worm and worm wheel engage and mesh with each other can impact noise levels. Proper tooth contact and alignment can help minimize noise during operation.
- Lubrication: Inadequate or improper lubrication can lead to increased friction and wear, resulting in higher noise levels. Using the recommended lubricant and maintaining proper lubrication levels are important for noise reduction.
- Operating Conditions: Operating the gearbox within its specified load and speed limits can help prevent excessive noise generation. Overloading or operating at high speeds beyond the gearbox’s capabilities can lead to increased noise.
- Backlash: Excessive backlash or play between the gear teeth can lead to impact noise as the teeth engage. Proper backlash adjustment can help mitigate this issue.
- Maintenance: Regular maintenance, including gear inspection, lubrication checks, and addressing any wear or damage, can help keep noise levels in check.
It’s important to note that while worm gearboxes can produce some noise due to the nature of gear meshing, proper design, maintenance, and operation can significantly reduce noise levels. If noise is a concern for your application, consulting with gearbox manufacturers and experts can provide insights into selecting the right gearbox type and implementing measures to minimize noise.
Worm Gearbox vs. Helical Gearbox: A Comparison
Worm gearboxes and helical gearboxes are two popular types of gear systems, each with its own set of advantages and disadvantages. Let’s compare them:
| Aspect | Worm Gearbox | Helical Gearbox |
| Efficiency | Lower efficiency due to sliding friction between the worm and worm wheel. | Higher efficiency due to rolling contact between helical gear teeth. |
| Torque Transmission | Excellent torque transmission and high reduction ratios achievable in a single stage. | Good torque transmission, but may require multiple stages for high reduction ratios. |
| Noise and Vibration | Generally higher noise and vibration levels due to sliding action. | Lower noise and vibration levels due to smoother rolling contact. |
| Backlash | Higher inherent backlash due to the design. | Lower backlash due to meshing of helical teeth. |
| Efficiency at Higher Speeds | Less suitable for high-speed applications due to efficiency loss. | More suitable for high-speed applications due to higher efficiency. |
| Overload Protection | Natural self-locking feature provides some overload protection. | May not have the same level of inherent overload protection. |
| Applications | Commonly used for applications requiring high reduction ratios, such as conveyor systems and heavy-duty machinery. | Widely used in various applications including automotive transmissions, industrial machinery, and more. |
Both worm and helical gearboxes have their place in engineering, and the choice between them depends on the specific requirements of the application. Worm gearboxes are preferred for applications with high reduction ratios, while helical gearboxes are chosen for their higher efficiency and smoother operation.
Can a Worm Gearbox Provide High Torque Output?
Yes, a worm gearbox is capable of providing high torque output due to its unique design and principle of operation. Worm gears are known for their high torque multiplication capabilities, making them suitable for applications that require significant torque transfer.
The torque output of a worm gearbox is influenced by several factors:
- Lead Angle: The lead angle of the worm affects the mechanical advantage of the gear system. A larger lead angle can result in higher torque output.
- Worm Diameter: A larger diameter worm can offer increased torque output as it provides more contact area with the gear.
- Gear Ratio: The gear ratio between the worm and the gear determines the torque multiplication factor. A higher gear ratio leads to higher torque output.
- Lubrication: Proper lubrication is essential to minimize friction and ensure efficient torque transmission.
- Material and Quality: High-quality materials and precision manufacturing contribute to the gearbox’s ability to handle high torque loads.
Due to their ability to provide high torque output in a compact form factor, worm gearboxes are commonly used in various industrial applications, including heavy machinery, construction equipment, conveyor systems, and more.
editor by CX 2023-09-18