Shaft Geared Motors – Efficient Drive Solutions for Direct Torque Transmission

Shaft geared motors are compact, highly efficient drive units that combine a gearbox and an electric motor into one integrated system. They are specially designed to deliver direct torque transmission through a solid or hollow output shaft, making them ideal for applications where precise, robust, and space-saving power delivery is required. In this article, you’ll learn what shaft geared motors are, how they work, and where they are used – as well as what makes Rehfuss Drive Solutions a trusted supplier in this segment.

What is a Shaft Geared Motor?

A shaft geared motor is a combination of a motor and a gear unit, where the output shaft of the gearbox is used to deliver rotational force directly to the driven application. These units are compact, easy to install, and available in various configurations depending on the gear type (e.g. helical, bevel, worm, or planetary).

Most shaft geared motors use a parallel shaft gearbox, where the motor shaft and output shaft are arranged in parallel, allowing for smooth and efficient power transfer.

How Does a Shaft Geared Motor Work?

The motor provides rotational energy (RPM), which is then transmitted through the internal gears of the gearbox. The gear unit reduces the speed and increases the torque, depending on the gear ratio.

Key components include:

Electric motor (asynchronous, synchronous, or servo)

Gearbox housing (aluminum, cast iron, or stainless steel)

Gearing system (usually helical or spur gears)

Solid or hollow output shaft

Bearings and seals for long-life operation

Optional accessories like encoders, brakes, or frequency inverters

Advantages of Shaft Geared Motors

1. Integrated, Space-Saving Design

By combining gearbox and motor into one unit, shaft geared motors eliminate the need for couplings and reduce system footprint.

2. High Efficiency

Helical or planetary gears ensure smooth operation and high energy efficiency, often exceeding 90%.

3. Direct Shaft Connection

Suitable for direct mounting onto the driven machine – especially in conveyor and automation systems.

4. Reliable Torque Output

Stable performance even under high loads and continuous operation.

5. Versatile Mounting Options

Foot-mounted, flange-mounted, or shaft-mounted versions are available.

6. Ready for Automation

Compatible with sensors, PLCs, frequency converters, and Industry 4.0 networks.

Typical Applications of Shaft Geared Motors

Shaft geared motors are used in a wide range of industries and applications:

Conveyor systems (belt, chain, roller)

Packaging machinery

Textile and paper processing

Food and beverage production

Material handling systems

Agricultural machinery

Water and wastewater treatment

Shaft Geared Motors vs Other Drive Systems

Instead of using a table, here’s a comparison in text form:

Shaft geared motors

Compact, all-in-one solution

High torque at low speed

Direct shaft output

Suitable for most standard applications

Servo drives with couplings

High-precision, dynamic response

Requires additional alignment

More complex and costly

Separate gear unit and motor

More flexibility in component choice

Requires extra mounting space

More time-consuming to install

Materials and Protection Classes

Shaft geared motors are available with various housing materials and protection levels:

Materials: Aluminum for lightweight applications, cast iron for industrial strength, stainless steel for hygiene-sensitive environments

Protection classes: From IP54 to IP69K for use in dusty, wet, or washdown areas

Shaft Geared Motors from Rehfuss Drive Solutions

Rehfuss offers a wide range of high-performance shaft geared motors for industrial automation, logistics, and mechanical engineering. Our motors are built to deliver reliable performance under demanding conditions and can be tailored to your specific needs.

Our strengths:

Modular designs for flexibility and fast delivery

Various output shafts (solid, hollow, keyed, or shrink disc)

IEC motor integration or custom-built motor options

Optional accessories: brakes, encoders, thermistors, connectors

Ready for global use with CE, UL, and CSA certifications

Buy shaft geared motors now

Looking for compact and powerful geared motor solutions? Rehfuss delivers shaft geared motors engineered for precision, durability, and industrial performance.

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