When bearings run hot near ovens, kilns, dryers or hot motors, ordinary grease bleeds and hardens, leaving carbon deposits, seizure and unplanned downtime. High-temperature grades hold up where standard grease breaks down.
When you need this
Continuous operating temperature above ~120 °C
Bearings near furnaces, steam, drying or other hot processes
Grease darkening, hardening or leaking out in service