Bosch sliding miter saw, the bearings in the slide mechanism are catching making a jerky slide, have tried wd40 any ideas?
Have you tried blowing out the mechanism with a compressed air nozzle? Frequently this friction is caused not by the bearing itself but instead by debris, sawdust, etc. built up inside the base of the saw. I'd give it a good cleaning to begin with.
If that doesn't work, try applying bearing lubricant directly to the bearing races.Use an extension straw if needed so you can get to them, as this is designed to penetrate where even the reliable old wd40 may not reach. You can find this a specialty woodworking stores, as well as some well-equiped home centers.
Let us know if this works, or you've already solved the problem... Read More At : 12" Dual - Bevel Compound Miter Saw with Upfront Controls......