MOLYKOTE
® 44 High Temperature Bearing Grease, Medium is specified for rolling element bearings in equipment where sustained high ambient or process temperatures degrade conventional lithium or lithium-complex greases. Primary applications include:
- Data center infrastructure: rolling element bearings in CRAC unit fans, cooling tower motors, and air handler units operating in hot aisle environments where ambient bearing temperatures routinely exceed 80°C
- Power generation and distribution: motor bearings in generator cooling fans, forced-draft fan assemblies, and transformer cooling systems; switchgear pivot bearings and actuator mechanisms exposed to heat from high-current components
- Oil and gas: bearings in wellhead pump motors, compressor station fan assemblies, and process equipment in high-ambient upstream and midstream environments
- Industrial thermal processing: oven fan bearings, kiln preheater fans, conveyor system bearings operating inside or adjacent to process ovens, and textile drying equipment
- General industrial MRO: any rolling element bearing application where the operating temperature or ambient environment causes standard NLGI 2 lithium greases to degrade within normal maintenance cycles
If your application exceeds 204°C continuous service temperature, review
MOLYKOTE® 41 Extreme High Temperature Bearing Grease, which is rated for higher thermal exposure using a different thickener chemistry.