Re: Gearbox Bearings

Posted by hendred21 on Mar 01, 2013; 7:59pm
URL: http://silk-motorcycles.221.s1.nabble.com/Gearbox-Bearings-tp5000694p5000775.html

Hello Paul,

The KT151913 caged needle roller is the size I used.  

As I said in my earlier posting on this topic, the 6301 2RS had failed through lack of lubrication.  When I pulled the seals out, which had overheated, the bearing was dry and the tracks crazed.  The replacement open 6301 rusted very quickly and I am now running with a 6301 2Z with the seal on the gear side removed to allow oil lubrication from the gearbox.  The space between the triangular (sort of) cover and the bearing is packed with grease.  I didn't remove the bearing from the kickstart housing as that seemed ok so cannot comment on the part number or size.

Hope this helps.