The Renold SMX Series Shaft Mounted Gearboxes are robust, heavy-duty parallel shaft helical gear reducers designed for high-performance industrial power transmission applications. Engineered for direct mounting onto driven shafts, the SMX series provides compact installation, high torque capacity, and reliable operation in demanding environments such as quarrying, mining, bulk handling, and conveyor systems.

Manufactured with hardened alloy steel gears and durable cast iron housings, the SMX range is designed for long operational life, reduced maintenance, and efficient power transmission under heavy shock loads and continuous-duty applications.

Key Features

• Shaft-mounted parallel shaft helical gearbox design
• Compact and space-saving installation directly onto driven shafts
• High torque capacity with heavy-duty cast iron housing
• Hardened and ground alloy steel gears for long service life
• Smooth, quiet, and efficient operation
• Suitable for high shock-load and continuous-duty applications
• Backstop options available to prevent reverse rotation
• Torque arm mounting for simplified installation
• Taper bore and keyed hollow shaft options available
• Multiple reduction ratios for varied speed requirements
• High radial load capacity for conveyor and bulk handling systems
• Low maintenance with long-life lubrication systems