Varvel F RD52 Coaxial Gearbox – Output Shaft Ø50 x 100 mm

Varvel F RD52 Ø50 mm Coaxial Gearbox: A Robust Solution for Industrial Transmissions

The Varvel F RD52 Ø50 × 100 mm coaxial gearbox is designed to meet the needs of industrial installations requiring reliable, high-performance, and durable power transmission. Developed by Varvel, an Italian manufacturer specializing in mechanical transmission systems for over 60 years, it combines high efficiency, compactness, and great modularity to adapt to numerous machine configurations.

Thanks to rigorous manufacturing, quality components, and continuous performance control, the F RD52 guarantees consistent operation, both on new equipment and when replacing an existing gearbox.

An Optimized Design for Industrial Environments

Integrated into the RD series, the Varvel F RD52 benefits from a coaxial helical gear architecture, renowned for offering excellent mechanical efficiency while reducing vibrations and noise levels.

Its compact square casing facilitates its integration when available space is limited, while its modular design simplifies adaptations according to mounting constraints. This architecture also reduces maintenance operations and optimizes spare parts management.

Key Technical Characteristics

The Varvel F RD52 is designed to ensure regular power transmission while limiting the wear of mechanical components.

Features:

• Type: coaxial helical gear reducer
• Range: Varvel RD52 Series
• Output shaft: solid and keyed Ø50 × 100 mm
• Shaft height: 140 mm
• Maximum output torque: 1,250 Nm
• 23 reduction ratios available, from 2.25 to 63
• Square casing with small footprint
• Oil bath lubrication, reducing maintenance needs
• ATEX version available for environments with explosion risk

Compatible with IEC Motors

The prefix F indicates that the gearbox is equipped with a standardized IEC input flange, allowing direct mounting of an electric motor without an additional adapter. This design ensures perfect alignment between the motor and the gearbox while reducing installation time.

The F RD52 is compatible with IEC 80, 90, 100, 112, 132, 160, and 180 motors, in B5 or B14 version.

The available interfaces are as follows:

• IEC 80: B5 Ø200 mm - B14 Ø120 mm
• IEC 90: B5 Ø200 mm - B14 Ø140 mm
• IEC 100 and 112: B5 Ø250 mm - B14 Ø160 mm
• IEC 132: B5 Ø300 mm - B14 Ø200 mm
• IEC 160 and 180: B5 Ø350 mm - B14 Ø250 mm

This compatibility covers the majority of standardized motors used in industrial installations.

Mounting Options Adapted to Each Installation

The Varvel F RD52 is designed to be easily integrated into different types of machines.

It can be installed:

• by foot mounting B3, ideal for mounting on a chassis or frame;
• by output flange, for direct mounting on the driven machine.

The output flanges are available in Ø250 mm, Ø300 mm and Ø350 mm, to meet different mechanical constraints.

Its shaft height of 140 mm, compliant with industrial standards, also simplifies replacement operations without modifying the existing layout.

23 Reduction Ratios to Meet Every Need

The F RD52 is available with 23 reduction ratios, allowing the most suitable output speed for each application.

The reduction range extends from 2.25 to 63, offering both intermediate speeds and significant reductions for applications requiring high torque.

Available ratios:

2.25 - 2.82 - 3.55 - 4.46 - 5.18 - 5.61 - 7.09 - 7.72 - 8.92 - 10.06 - 11.22 - 12.37 - 14.17 - 15.44 - 17.84 - 20.12 - 22.44 - 25.26 - 28.34 - 31.76 - 35.68 - 44.68 - 63

A Gearbox Designed for Many Applications

The Varvel F RD52 is suitable for many industrial sectors thanks to its robustness and its ability to operate continuously.

It is notably used on:

• industrial conveyors;
• packaging machines;
• mixers and blenders;
• handling equipment;
• agricultural machinery;
• machine tools;
• robotic cells and automation systems;
• installations dedicated to renewable energies, notably photovoltaic trackers and certain wind power equipment.

Its silent operation, transmission regularity, and reliability make it a suitable solution for installations subjected to high speeds or continuous operation.

Highlights of the Varvel F RD52

The Varvel F RD52 Ø50 mm coaxial gearbox brings together all the characteristics expected of a high-performance industrial transmission:

• maximum torque of 1,250 Nm;
• 23 reduction ratios from 2.25 to 63;
• solid and keyed output shaft Ø50 × 100 mm;
• compatibility with IEC 80 to 180 motors in B5 and B14;
• foot mounting B3 or by flange Ø250, Ø300 or Ø350 mm;
• standardized shaft height of 140 mm;
• oil bath lubrication for reduced maintenance;
• ATEX version available according to installation needs.

With its modular construction, excellent mechanical efficiency, and the recognized expertise of Varvel, the F RD52 is a reliable and durable solution for all industrial applications requiring precise, secure, and high-performance power transmission.