High-temperature track rollers

High-temperature track rollers are specialised bearings designed to operate at extremely high temperatures (up to 350°C/660°F or higher). The suffix HT4G reached temperatures of up to 400°C/752°F, using special lubricants, fluorocarbon seals, or solid lubricants (such as graphite). They are critical for industrial furnaces, steel mills, and glass manufacturing to prevent grease burning, damage, or contamination in high radial load and high-temperature environments.

All high-temp track rollers come with the following benefits:

• Material: Chrome steel

• Manganese phosphate coating (according to EN ISO 9717)
  ensures increased protection against corrosion, good adhesion of lubricants and better runnability

Common Temperature Ranges

GMW offers three different greasing options as standard:

• HT1 – High-temperature track rollers with the suffix HT1 are filled with a special grease containing MoS₂ (molybdenum disulphide) which hardens after reaching a certain temperature and leaves a powder. Cam track roller suffixes HT1 are suitable for slow speeds and temperatures up to 350°C.

• HT2 – High-temperature track rollers with the suffix HT2 are filled with a special polytetrafluoroethylene (PTFE) heat-resistant grease for smooth movement. Cam track roller suffixes HT2 are suitable for slow speeds and temperatures up to 280°C.

• ENC330 – High-temperature track rollers with the suffix ENC330 are filled with a graphite-containing high-temperature paste rated up to 330 °C. Cam track roller suffixes ENC330 are suitable for slow speeds and temperatures up to 330°C.

• HT4/G – High-temperature track rollers with the suffix HT4/G are filled with a special grease containing MoS₂ (molybdenum disulphide) which hardens after reaching a certain temperature and leaves a powder. Cam track roller suffixes HT4/G are suitable for slow speeds and temperatures up to 400°C.

Applications and Environments

• Industrial Ovens & Furnaces: Conveyor systems transporting parts through drying or baking ovens often require specialised rollers to function in temperatures exceeding 

• Steel Mill Equipment: Handling heavy loads and high-temperature steel components requires heavy-duty rollers.

• Glass Manufacturing: Moving hot glass products along production lines.

• Heat Treatment Facilities: Environments involving constant heat treatment and tempering.

• Automatic Painting Systems: Automotive painting systems require high-temp, paint-compatible, and sometimes silicone-free rollers.