Cordless grease guns may advertise “gear drive,” but not explain if those gears are plastic or metal. “Metal” gears may be made of relatively brittle cast iron. While some high-quality ...

One of the functions of grease is to cool gearcases. The lube gains heat from contact with gears and bearings, gets flung to the sidewall of the gearcase and transfers that heat to the sidewall as ...

PTFE bonds to metal, wood, rubber and plastic. It’s a light-load ... Shop on Amazon Shop on Amazon Synthetic grease is the ...