i just picked up a set of 5" front go-power wheels, the thing is they use taper bearings.i wonder if anyone seen this before, an how old they might be. the frist karts made had taper bearings an .thought go-power copied an then changed .can anyone help me . thanks herb dickel
herb ., i have 4" that are both .3/4" taper and 5/8ths ball bearing ..and all the 5" are 5/8ths .. but i run 5/8ths ball bearing in some of my wheels with taper bearings just leave the taper race in wheel and 5/8ths bearing with no lip or ring fits perfect . ?? works for me .. i wonder if they made 5" both ways or are all front wheels 4" and 5" the same just some have ball and some have taper bearings .. i never popped out the taper races to see if wheels are machine different or not .. ill do it tonight i got some right hear ..
You dont need to worry about sealing the tapered rollers. Just make sure you have a dust shield close to the outer diameter. DONT pack the bearings with grease and DONT run the nuts down tight. Just add a drop of some thick oil each time you run the kart. To adjust the bearings, run down the nut with your fingers until it just stops without resistance. Then back up one cotter pin slot. Its OK if the wheel has a slight bit of play.
I road raced for a decade with tapered rollers, both 5/8 and 3/4, even with front brakes. Ran them on Hornets, Tricks, and Emmicks. With the way I described to adjust they would not even be warm after an hours road race.
K&P (Bug) used 3/4" tapered rollers for years. My '75 Series II Wasp still had them. My '78 Black Widow was the first Bug kart I bought that had 5/8" ball bearings. The Molybdenum disulphide black grease (Moly MP) is fine in tapered rollers, and lasts several races (serious races) before needing to be replaced. It's thin enough to cause no drag problem. We ran Moly at B-Limited street race speeds for years with never a sign of bearing overheat. Ted