2-Stage NMRV 40 – 75 Gearbox

The 2-Stage NMRV 40 – 75 Gearbox is a gearbox line assembled from two NMRV gearboxes of sizes 40 and 75, forming a powerful two-stage drive assembly that significantly increases output torque compared to a single-stage gearbox.

Thanks to the large gear ratio (from 1/150 to 1/10,000), the 2-stage gearbox is considered an ideal solution for equipment requiring slow rotation speeds but high traction, such as conveyors, agitators, screw conveyors, packaging machines, presses, or automation systems.

Overall design of the 2-Stage NMRV 40 – 75 Gearbox

The 2-stage NMRV gearbox is designed with a right-angle dual-axis style, compact and refined, convenient for installation in various positions. The housing is cast from monolithic aluminum alloy, reducing weight while ensuring rigidity, good heat dissipation, and high corrosion resistance.

Inside, the worm shaft and worm wheel assembly is precision-machined using modern CNC technology, ensuring smooth meshing, reduced friction, and low noise. This optimized design helps the 2-Stage NMRV 40 – 75 Gearbox operate smoothly, stably, and durably, even when working in continuous industrial environments.

Detailed structure of the 2-Stage NMRV 40 – 75 Gearbox

The 2-Stage NMRV 40 – 75 Gearbox is formed by connecting an NMRV 40 gearbox and an NMRV 75 gearbox via an intermediate coupling unit. Its main structure consists of the following parts:

• Worm shaft: Made of hardened alloy steel, precision polished to reduce friction and increase load capacity.
• Worm wheel: Produced from brass or high-grade copper alloy, helping transmit power smoothly and durably.
• Housing: Cast from monolithic aluminum, lightweight, with good heat dissipation and effective oxidation resistance.
• NMRV intermediate coupling: Used to transmit stable torque between the two reduction stages, ensuring concentricity and reducing vibration.
• Input shaft: Designed as a hollow bore type, can be directly installed with an electric motor via a flange or flexible coupling.
• Output shaft: Made of high-strength steel, available in solid or hollow types, easily installed into drive equipment such as conveyors, screw conveyors, or mixer rotating shafts.

Technical specifications of the 2-Stage NMRV 40 – 75 Gearbox

The technical specifications below help determine the dimensions and installation capability of each gearbox stage.

NMRV 40 Gearbox

NMRV 40 is the first drive stage, receiving power from the motor before transmitting it to the NMRV 75.

Technical specifications:

NMRV 75 Gearbox

NMRV 75 is the second drive stage, continuing to reduce speed and transmit torque to the output shaft.

Technical specifications:

Practical applications of the 2-Stage NMRV 40 – 75 Gearbox

With flexible design and high performance, the 2-Stage NMRV 40 – 75 Gearbox is widely applied in various industrial fields such:

• Conveyor systems, belt conveyors, screw conveyors in manufacturing plants.
• Agitators, mixers, presses serving the food, chemical, and building materials industries.
• Packaging machines, fabric rollers, textile machines, CNC machines, and automation lines.
• Screening equipment, crushers, and lifting machines requiring high traction and slow rotation speed.

Installation guide for the 2-stage NMRV gearbox

To install the 2-stage NMRV gearbox properly, follow these steps:

Step 1: Check compatibility

Compare the model, gear ratio, mounting type, shaft dimensions, and flange of the gearbox with the motor. Check the housing body, shaft, and bolt locations before proceeding with installation.

Step 2: Install the gearbox onto the motor

Place the gearbox in the correct position, insert the motor shaft into the input shaft of the gearbox, and align the two flanges evenly. Then tighten the bolts to secure the drive assembly.

Step 3: Post-installation inspection

Check the concentricity between the motor and the gearbox, the tightness of the bolts, and the contact points on the flange. Ensure all parts are installed in the correct positions.

Step 4: Trial run

Run the system with no load to check for vibration and noise, and observe the condition of the assembly points before putting the equipment into official operation.

In addition to this article, you can refer to the summary video on the Thanh Thai Motor channel for more practical installation instructions. At the same time, the gearbox video will provide additional content on the structure, assembly process, and inspection methods for various gearbox lines.

Warranty, Shipping, and Commitment Policy at Thanh Thai Motor

When purchasing gearboxes at Thanh Thai Motor, you will receive benefits such as:

Warranty up to 24 months

Gearbox products at Thanh Thai Motor are covered by a genuine warranty for up to 24 months. Customers can be completely confident in using them with a clear, transparent, and prompt after-sales policy.

Nationwide Delivery

We support fast delivery to all provinces and cities nationwide. Wherever you are, products are guaranteed to arrive on time and safely.

Products meeting European quality standards with German technology

Gearboxes at Thanh Thai Motor are manufactured using advanced German technology, meeting European quality standards. Ensuring high durability and stable operation for extended periods.

Competitive prices, good discounts for dealers and bulk customers

Reasonable prices, many attractive offers for wholesale buyers and distribution agents. The more you buy, the higher the discount – optimizing profits for customers.

Full certification documents: CO, CQ,...

Each product comes with full Certificate of Origin (CO) and Certificate of Quality (CQ). This provides assurance for customers when using them in projects or constructions requiring technical documentation.

Contact for Purchase

Do you need advice on choosing the right gearbox for your needs? Contact Thanh Thai Motor immediately using the methods below:

• WhatsApp: +84966596219
• Email: codienthanhthai@gmail.com