Product Description
NMRV REDUCTION WORM GEARBOX
NMRV 150 worm gear motor for general industrial use refers to angular type drives. The unit provides high output torque (up to 1760 N * m), withstands significant radial loads (up to 18 000 N). Robust cast iron body gear motor has a protective coating. Mounting options: feet / flange.
Additional options:
- reactive rod for reactive torque compensation
- outlet flange for securing to the frame
- variator attachment for regulating the output shaft rotation speed
- torque limiter
Materials parts:
Body – iron, flanges – iron, worm – steel CHINAMFG worm wheel – bronze.
Type of lubricant: synthetic ISO VG 220.
Weight: 84 kg.
Type designation scheme
NMRV – 150 – 7.5 – 186.7 – 15 – B7
- NMRV – worm gear motor
- 150 – size (center distance, mm)
- 7.5 – gear ratio
- 186.7 – output shaft rotation speed, rpm
- 15 – electric motor power, kW
- B7 – mounting position
NMRV 150 gearbox performance
| i | n 1 = 2800 rpm | n 1 = 1400 rpm | n 1 = 900, rpm | |||||||||
| n 2 , rpm |
T 2M , N * m |
P kw |
RD % |
n 2 , rpm |
T 2M , N * m |
P kw |
RD % |
n 2 , rpm |
T 2M , N * m |
P kw |
RD % |
|
| 7.5 | 373 | 862 | 36.20 | 93 | 187 | 1162 | 25.30 | 91 | 120 | 1410 | 19.90 | 89 |
| 10 | 280 | 879 | 28.00 | 92 | 140 | 1197 | 19.50 | 90 | 90 | 1429 | 15.30 | 88 |
| 15 | 187 | 924 | 20.10 | 90 | 93 | 1250 | 2 p.m. | 87 | 60 | 1488 | 11.00 | 85 |
| 20 | 140 | 990 | 16.30 | 89 | 70 | 1320 | 11.25 | 86 | 45 | 1550 | 8.80 | 83 |
| 25 | 112 | 920 | 12.00 | 90 | 56 | 1203 | 8.30 | 85 | 36 | 1414 | 6.50 | 82 |
| 30 | 93 | 900 | 10.30 | 85 | 47 | 1138 | 7.00 | 80 | 30 | 1348 | 5.50 | 77 |
| 40 | 70 | 1234 | 10.90 | 83 | 35 | 1596 | 7.50 | 78 | 23 | 1837 | 5.90 | 75 |
| 50 | 56 | 1091 | 7.90 | 81 | 28 | 1426 | 5.50 | 76 | 18 | 1665 | 4.30 | 73 |
| 60 | 47 | 1571 | 6.30 | 80 | 23 | 1370 | 4.40 | 75 | 15 | 1582 | 3.50 | 71 |
| 80 | 35 | 884 | 4.50 | 72 | 18 | 1102 | 3.10 | 67 | 11 | 1354 | 2.40 | 65 |
| 100 | 28 | 848 | 3.50 | 71 | 14 | 1080 | 2.40 | 66 | 9 | 1250 | 1.90 | 62 |
- n1 – rotational speed el. engine;
- n2 – revolutions on the output shaft;
- T 2M – torque on the output shaft;
- P is the maximum allowable engine power;
- RD – efficiency
GEARBOX FEATURE
| 1.Good quality,long life time,low noise. |
| 2.Compact,convenient. |
| 3.High efficiency,big torque. |
Overall and mounting dimensions NMRV 150
NMRV150 gear motor has a wide range of gear ratios.
Gear ratios: 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 .
Output flange to NMRV 150 gearbox
Geared NMRV150 can be supplied with unilateral or bilateral output shaft.
The gearbox comes standard with a hollow output shaft
A torque arm is an additional option to the gearbox.
| Model | NMRV SERIES |
| Single Stage | RV25-RV150 |
| Ratio | 7.5-100 |
| Input Power | 0.06KW-15KW |
| Output Speed | 14-280rpm |
| Output Torque | 5-1800Nm |
| Core parts | worm wheel,worm shaft |
| Core parts material | worm shaft:20 Cr Mn Ti,worm wheel:Nodular cast iron interal,9-4 copper external |
| Lubrication | RV30-90:synthetic oil, RV110-150:GN460-W mineral oil |
| Bearings | C&U |
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| Application: | Motor, Motorcycle, Machinery, Agricultural Machinery, Industry |
|---|---|
| Hardness: | Hardened |
| Installation: | Any Angle |
| Gear Shape: | Worm Gear |
| Step: | Single-Step |
| Type: | Worm and Wormwheel |
| Samples: |
US$ 20/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Enhancing Efficiency of Conveyor Systems and Material Handling Equipment with Speed Reducer Gearboxes
Speed reducer gearboxes play a significant role in optimizing the efficiency of conveyor systems and material handling equipment, contributing to smoother operations, reduced energy consumption, and improved productivity.
Conveyor Systems:
- Variable Speed Control: Speed reducer gearboxes allow precise control over the rotational speed of conveyor belts. This enables operators to adjust the speed according to the specific material being transported, preventing spills, jams, and material damage.
- Torque Amplification: By increasing torque while reducing speed, speed reducer gearboxes help conveyor systems handle heavy loads and inclines with ease. This minimizes strain on the motor and extends the equipment’s lifespan.
- Energy Efficiency: Speed reducer gearboxes convert high-speed, low-torque input into low-speed, high-torque output. This efficient power transmission reduces energy consumption, leading to cost savings and environmental benefits.
- Smooth Start and Stop: Gearboxes enable smooth acceleration and deceleration of conveyor belts, reducing wear and tear on components and minimizing product damage.
Material Handling Equipment:
- Enhanced Lifting Capacity: Speed reducer gearboxes allow material handling equipment, such as forklifts and cranes, to lift heavier loads by multiplying torque while maintaining a manageable speed.
- Precision Control: Gearboxes provide fine control over the movement of material handling equipment, allowing operators to position and place items accurately and safely.
- Reduced Operator Fatigue: The torque amplification provided by speed reducer gearboxes reduces the effort required to move heavy objects, reducing operator fatigue and improving overall ergonomics.
- Safety: Gearboxes contribute to safer operations by enabling controlled and gradual movements, minimizing the risk of sudden jerks or overexertion.
By incorporating speed reducer gearboxes into conveyor systems and material handling equipment, industries can achieve higher levels of efficiency, reliability, and safety while reducing operational costs and enhancing overall performance.
Managing Shock Loads and Sudden Speed Changes in Speed Reducer Gearboxes
Speed reducer gearboxes are designed to effectively manage shock loads and sudden changes in rotational speed, ensuring reliable operation and minimizing potential damage to both the gearbox and the connected machinery. They employ various design features and components to achieve this:
1. High-Strength Materials: Speed reducer gearboxes are constructed using durable and high-strength materials, such as alloy steel, to withstand sudden impacts and shock loads without deformation or failure.
2. Robust Bearings: Heavy-duty bearings are used to support the shafts and gears within the gearbox. These bearings are selected for their ability to handle both radial and axial loads, providing stability and reducing the risk of damage.
3. Shock-Resistant Gears: Gear teeth are designed to absorb and distribute shock loads. Tooth profiles and surface treatments are optimized to minimize stress concentrations and prevent premature wear or fractures.
4. Torque Limiters: Some speed reducer gearboxes incorporate torque limiters or overload protection devices. These mechanisms disengage the gearbox from the motor or driven equipment when excessive torque or shock loads are detected, preventing damage to the components.
5. Lubrication: Proper lubrication is essential to reduce friction and dissipate heat generated during sudden speed changes. High-quality lubricants ensure smooth operation and enhance the gearbox’s ability to absorb shocks.
6. Inertia Considerations: Speed reducer gearboxes are designed to manage changes in inertia between the input and output sides. This is important for maintaining stability during sudden acceleration or deceleration.
By incorporating these features and engineering principles, speed reducer gearboxes can effectively handle shock loads and sudden changes in rotational speed, enhancing the overall reliability and performance of mechanical systems.
Different Designs of Speed Reducer Gearboxes for Specific Tasks
Speed reducer gearboxes come in various designs, each tailored to specific tasks and applications. These designs are optimized to provide efficient speed reduction and torque multiplication for different industrial scenarios. Here are some common designs:
Helical Gearbox: Helical gearboxes feature helical-cut gears with angled teeth that engage gradually, resulting in smoother and quieter operation. They are suitable for applications requiring moderate to high torque and are often used in conveyor systems, mixers, and heavy machinery.
Worm Gearbox: Worm gearboxes consist of a worm screw and a worm wheel, providing high gear ratios for substantial speed reduction. They are compact and can handle heavy loads, making them suitable for conveyors, elevators, and automotive applications.
Planetary Gearbox: Planetary gearboxes utilize a central sun gear, multiple planet gears, and an outer ring gear. They offer high torque density and compact designs, making them ideal for robotics, precision machinery, and aerospace applications.
Bevel Gearbox: Bevel gearboxes use bevel gears to transmit power between intersecting shafts. They can handle both high torque and speed variations, making them suitable for printing presses, packaging machinery, and woodworking equipment.
Right Angle Gearbox: Right angle gearboxes, also known as miter gearboxes, change the direction of rotation by 90 degrees. They are used in applications where space is limited or where motion needs to be redirected, such as in conveyor systems, packaging machines, and material handling equipment.
Inline Helical Gearbox: Inline helical gearboxes are compact and offer efficient power transmission. They are commonly used in pumps, compressors, and industrial fans.
Coaxial Gearbox: Coaxial gearboxes have input and output shafts that are parallel and share the same axis. They are used in applications requiring compact and direct power transmission, such as printing machinery and textile equipment.
These are just a few examples of the different designs of speed reducer gearboxes available. The choice of design depends on factors such as the required torque, speed reduction, available space, and specific application needs.
editor by CX 2024-02-02