if you can remove your bearing take it to a bearing place like miller bearing ,,motion ind. or what ever bearing place is near you they will measure yours and tell them you want a hig speed self lube,, just tell what you want to do and they will tell you what you need,, take it home press it in,,( a socket on the outer race only) and tap it into the pulley you want a 20 to 30.000 rpm bearing jim