2-Stage NMRV Gearbox 50 – 130

The 2-Stage NMRV Gearbox 50 – 130 features a worm gear design, optimized for speed reduction and torque multiplication. With frame sizes ranging from 50 to 130 mm, it operates stably with low noise. The aluminum alloy or cast iron housing provides excellent heat dissipation and durability in industrial environments. It is suitable for conveyors, packaging machines, and automation systems requiring low speeds and high torque.

Overview Design of the 2-Stage NMRV Gearbox 50 – 130

This gearbox features a right-angle worm gear design, ensuring stable power transmission, high efficiency, and smooth operation. The housing is made of monolithic die-cast aluminum alloy, which is lightweight yet durable, corrosion-resistant, impact-resistant, and provides fast heat dissipation, ensuring long-term operation in harsh industrial environments.

The internal worm and worm wheel are precision-machined using CNC technology, ensuring precise meshing, reduced friction and noise, while helping the gearbox to be easily installed in confined spaces while maintaining high durability.

Detailed Structure of the 2-Stage NMRV Gearbox 50 – 130

The gearbox consists of main precision-machined components, helping transmit power efficiently and enhance operational durability. The main components include:

• Worm gear transmission set: Each stage uses a heat-treated alloy steel worm combined with a bronze alloy worm wheel. This structure helps reduce friction, ensures smooth operation, and increases load-bearing capacity over long periods.
• Gearbox housing: The NMRV 50 assembly typically uses an aluminum alloy housing to reduce weight, while the NMRV 130 uses a cast iron or cast steel housing to increase rigidity and load capacity. The two assemblies are securely joined by flanges and high-strength bolts.
• Input shaft and output shaft: The input shaft connects to the motor through a standard flange, while the output shaft transmits torque to the working equipment. Depending on usage requirements, the output shaft can be hollow or solid.
• Bearings, oil seals, and lubricating oil: The bearing system supports the rotating shafts accurately, oil seals prevent oil leaks and dust intrusion, while lubricating oil reduces heat, minimizes wear, and maintains transmission efficiency.

Technical Specifications of the 2-Stage NMRV Gearbox 50 – 130

The following specifications help select the appropriate gearbox for the motor and installation requirements of each application.

Technical Specifications of the NMRV 50 Gearbox

The NMRV 50 is the first transmission stage, receiving power from the motor before transmitting it to the NMRV 130 stage.

Technical Specifications

Technical Specifications of the NMRV 130 Gearbox

The NMRV 130 is the second transmission stage, continuing to reduce speed and increase torque before transmitting to the working equipment.

Technical Specifications

Practical Applications of the 2-Stage NMRV Gearbox 50 – 130

With deep speed reduction capabilities, torque enhancement, and stable operation, this 2-stage gearbox is an efficient, durable, and energy-saving drive solution for all industrial production lines.

• The 2-stage NMRV gearbox is widely applied in various industries.
• Conveyors, packaging lines, and cargo transportation systems.
• Agitators, mixers, and grinders in food processing, chemical, and building material industries.
• Fabric rollers, textile machines, and industrial machinery rotating mechanisms.
• Lifting systems, screw conveyors, presses, and automation equipment requiring high pulling force and slow rotational speed.

Installation Guide for the 2-Stage NMRV Gearbox

To properly install the 2-stage NMRV gearbox according to technical standards, follow these sequential steps:

Step 1: Pre-installation inspection

Check the gearbox model, mounting type, flange, input shaft, output shaft, and bolt holes. Ensure that the components match the motor and show no signs of damage.

Step 2: Install the gearbox onto the motor

Insert the motor shaft into the proper position of the gearbox input shaft, align the flange so that both contact surfaces meet evenly. Then, tighten the bolts sequentially at each position to secure the assembly.

Step 3: Inspect the assembled unit

Check the shaft concentricity, bolt tightness, and contact points between the motor and the gearbox. Ensure there is no misalignment or incorrect positioning.

Step 4: Operational test

Start the system in no-load mode, monitor noise and vibration, inspect connection points, and check for any oil leaks.

In addition to this article, you can refer to the video compilation on the Thanh Thai Motor channel to follow actual installation procedures. Furthermore, the gearbox video will provide additional content regarding structure, assembly methods, and inspection steps before putting the equipment into operation.