>>Trouts2, what is the specific advantage of real ball or roller bearings on the auger rake shaft over a $2 nylon flanged sleeve bushing? I was highly disappointed to learn that Ariens uses this setup. Seriously though, have you seen these things wear out?
Wear out, yes. How fast depends on the machine. MTD’s nylon or whatever they are made from are a common wear point, Ariens bronze bushings in the older machines lasted a long time. Ariens now uses some plastic busings in their newer machines. I replaced a few I think on 2005’s or around that year. Too early for such wear.
>>Does the metal mount that is attached to the side of the auger housing break?
The one that holds up the auger shaft? No, never saw one broken. They support a flange bearing which can become so worn it wears into the holder. The wear can be so bad it allows the auger shaft to jump out of the holder all together.
>>They put a zerk fitting on the shaft to lube the outside of the nylon bushing and the inside of the (tubular?) shaft.
The rake zerks are only to prevent rust between rakes and shaft.
Pre-Briigs Snappers had zerks on the auger shaft bearing holders. No other company had that. They also had an oil holding chain case in the tractor section, also something no other company had. A bit of overkill but their machines were fantastic and lasted.
>>Would one benefit by using a better grade sleeve bushing (MDS-Nylon, PEEK, Delrin, UHMW Poly, Bronze)?
I have no idea what those are but Bronze is good for 20-30 years, a couple of bucks to replace so why putz around?
>>Can the unit be retrofitted with flange mount ball bearings? It doesn't look like there's a lot of room to work with on the ends of the shaft.
Sure, you get an inside mount support that the shaft fits into. Many makers have that type of support,MTD, Ariens and others. You could pick up another makers support for you auger shaft. A few guys did that for a rake design problem with Sears Husqvarna’s. If the machine came with roller bearings great but once you get a machine with flange type you’ll probably only replace them once over the life of the machine so probably not worth doing.
This message was modified Oct 7, 2010 by trouts2