Industrial equipment supplier BMG’s Bearings division has expanded its Timken product offering to include split cylindrical hanger units, engineered for screw conveyor shafts operating in demanding environments such as bulk materials handling and mining.

These robust units deliver reliable performance under continuous load, heavy contamination and high mechanical stress in bulk handling applications.

“Screw conveyors that operate in arduous conditions are subjected to sustained demands on bearing support and sealing performance,” says BMG Bearings division product specialist Gift Davhana.

He adds that these hanger units have been developed by Timken to support screw conveyor shafts in applications where alignment control, sealing integrity and accommodation of axial movement are critical to bearing service life.

The units are essential for use in abrasive and high-duty conveyor applications in many industries, including mining and minerals processing, besides others.

Each unit in this range features a cast iron split housing fitted with expansion-type split cylindrical roller bearings, allowing the shaft to move axially, while remaining fully supported under radial load.

“The housing also includes a drilled and tapped boss for direct mounting to conveyor cross bracing or other structural members,” he explains.

BMG specialists recommend incorporating a swivel-type fixing into the mounting design to allow for static alignment, particularly in conveyor systems subject to structural deflection or installation tolerances.

Improved Sealing Performance

Davhana stresses that sealing performance is a key feature of the Timken unit’s design.

Supplied as standard by BMG, each unit includes double felt seals and two seal grooves on both sides of the housing.

This configuration supports alternative sealing arrangements when enhanced protection against dust or fine particulate ingress is needed.

The seal groove geometry also accommodates strip seal combinations, which can be tailored to specific material handling environments.

For added contamination control, the housing can be specified with a tapped port between the seal grooves at each end, which allows grease or air to be introduced into the sealing area, purging contaminants and extending operating intervals in harsh operating conditions.

These hanger units are designed for use with expansion or BX-type bearings only and have defined limits on permissible radial loading.

BMG recommends assessing load conditions and sealing requirements to ensure correct unit selection for each application.

The BMG team works closely with customers to define precise mechanical requirements and ensure accurate bearing selection.

The team advises on “cost-effective solutions” that improve machinery productivity, extend system service life and reduce maintenance demands.

Through its focus on production processes, the company’s extensive range of quality branded components, engineering solutions and technical services optimises productivity and enhances process plant operating reliability, concludes Davhana.