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High Temperature Bearings

Bearings operating at high temperatures can be a problem for many reasons, including loss of radial clearance, lubricant degradation, and microstructural changes of ring and rolling element materials resulting in loss of hardness and dimensional instability. These and other problems associated with high operating temperatures can be resolved with specialized heat treatment of rings, internal design considerations and proper material choices.

Bearing Solutions For The High Temperature Industry

High Temperature Greases

The greases are formulated for applications in smelting works and rolling mills as well as other high-temperature applications, such as rotary kilns, cooling beds, road tarmacking machines, annealing furnaces and plain bearings in foundry cranes. Application of the greases can reduce lubricant and wastewater disposal costs due to lower consumption and better water resistance.

Alloy Steel Bearings

High temperature resistance, added KLUBER high temperature grease, excellent mechanical properties, low cost, suitable for low speed, high load and difficult environment.

Full Ceramic Bearings

Corrosion resistant, high temperature, non-magnetic, no lubrication, suitable for low speed, low load and extreme environment.

Applications And Customers

All bearings have temperature limits. Usually the material weakens above a certain temperature and the bearing can no longer handle any meaningful load or speed. Provided a suitable lubricant is used, chrome steel bearings can handle temperatures up to 150°C while 440 grade stainless steel bearings can be used at temperatures of up to 300°C, full ceramic bearings can be used at temperatures of up to 1000°C.

These bearings are customized for use in applications such as:

  • automatic wafer baking ovens in the food and beverage industry
  • industrial furnaces
  • chains
  • ceramics industry
  • glass plants
  • conveyors
  • dryers
  • kilns and kiln cars
  • stokers
  • soot blowers
  • oil guns
  • gypsum board
  • veneer dryers