Clutch pilot bearing

[Jimmy G]

Any body know why the N Series uses a pilot bearing with only one seal? Anything I find on any manufacturer's web site say one side open allows for re-lubrication. Obviously not a practical thing with a clutch. The 6203Z (one seal) is readily available as a 6203ZZ (both sides sealed).

 

[Destroked 450]

The bearing goes in with the open side facing the crank, then one could add grease through the pilot hole.
When the engine's running centrifugal force pushed grease to the outer edge of the cavity where some would get into the bearings. The trans input shaft prevents grease from getting on the clutch.
The bearing cannot be regreased by hand with the tractor together.

It's unlikely you'll use the tractor as much as it was designed for so ether bearing with work.

 

[Jimmy G]

Thanks!