Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Impellers and Augers, Some Pictures, Any Comments?
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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DavidNJ
Joined: Sep 26, 2010
Points: 206
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Impellers and Augers, Some Pictures, Any Comments?
Original Message Oct 8, 2010 12:12 am |
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jviera1298
Joined: Aug 11, 2010
Points: 18
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Re: Impellers and Augers, Some Pictures, Any Comments?
Reply #16 Oct 8, 2010 3:24 pm |
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Ariens part list as well as part supply warehouses list the part as "Nylon". Regular Nylon has about 400 psi load capacity in this application. Other high performance plastic bearings (Delrin, Rulon, PEEK, UMHW, Vespel) have from double to 20 times the load capacity as Nylon. Bronze bearings have 5 to 12 times the load capacity of nylon. All of these mentioned are available in a flanged sleeve bearing and I'll bet in the same size as the Ariens part. There are also oil impregnated bronze bearings as well as graphite filled bronze bearings with 4000psi ratings. In short, it would have been very easy to design a much more durable part here for a couple of bucks. Is the load on the Auger really that low that the cheapest solution possible is sufficient? Frankly I agree with another prominent poster on this forum who said "shame on Ariens and Toro" with respect to this design. Have people had issues with them? We're throwing snow here, not drilling into the ground -- I would bet that it's sufficient and will last a long time performing its purpose.
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trouts2
Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328
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Re: Impellers and Augers, Some Pictures, Any Comments?
Reply #18 Oct 8, 2010 4:11 pm |
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 Two summers ago I fixed a 2004-2005 932105-ST8526LE which uses the blue bearing shown with it's holder. It's the bearing for the wheel drive axle. The bronze bearing is from an older Ariens and usually good for many years 20-30+ at least in a 724 in home service.
The repaired machine was bought second hand and he had it for two seasons clearing a 2 car wide barely 2 deep driveway. The machine came from another homeowner so not a lot of taxing service for a wheel bearing. That would put the blue bearing at about 3-4 seasons of service.
The part callout is: Bushing, Flange Split Nyliner .75”HP Not sure what the material is and it could be more durable than the bronze but the load is riding on a much smaller area than the old bearing. It was so worn the machine was riding the holder which was slightly worn.
I've replaced two of these in newer home owner machines. Not an inditement of Ariens parts but I usually replace wheel bearings on Ariens 70's and 80's machines. I love putting a new motor on a 30-40 year old Ariens. All that's usually needed is wheel and auger support bearings and the thing is ready for many more years of service. Tens years from now the electric chute parts on new machines probalby won't be available. There will probably be lots of service calls for blue bearing repairs.
The same blue bushing is used on the rake support ends.
This message was modified Oct 8, 2010 by trouts2
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aa335
Joined: Nov 29, 2008
Points: 2434
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Re: Gearbox Support
Reply #20 Oct 8, 2010 5:10 pm |
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Notice the that the Ariens is using a Y-mount and the Briggs (Deere in this case) is using a vertical shaft. I've come to think Ariens does virtually nothing by accident and just caught by surprise rarely. After this bushing discussion I'm thing the Y is to provide left/right alignment and the rod doesn't need to because of the side support. Do you agree? The Y-mount is just a different implementation to achieve the same objective. Can't see it being any better than vertical shaft or plate with same stiffness.. I do like the Deere bucket up close though. Simple, clean, robust design.
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