The replacement bearing is similar to the original bearing. Both are 6204 sealed bearings. "6204" is bearing speak for a single row deep groove ball bearing of a certain size. After that there are other things to consider. The original bearing appeared to be a 6204 "N", or "0", meaning a standard clearance bearing. The bearing code was partially outdated so decoding it took some guesswork. It was also sealed on both sides, but interestingly enough, reading the bearing number embossed on the side seals, it should have been sealed on only one side. Life's little mysteries. The seals (more choices) were Buna n full contact seals. Buna n itself comes with different material properties depending on the blend used to make it. The replacement bearing is a 6204 C3 which means it should have more clearance than an "N". The C3 clearance is used in high temperature environments to maintain clearance under thermal distortion. This bearing was also being marketed as a high temp bearing, so the grease inside should hold up to higher temperatures along with the Viton seals. The tractor can pull a plow, the car was no problem. So tonight new timing chains, a new timing chain guide rail, and a new timing chain pad were installed. :dance:
Threaded Mode
