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Sherlock Ohms

Tractor Belt Bearings Break Bad

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Rob Spiegel
User Rank
Blogger
Re: Innocent bystanders
Rob Spiegel   3/9/2012 2:20:37 PM
NO RATINGS
Yes, that makes sense, Jake. You're doing the preventative maintenance way in advance in order to avoid a costly emergency maintenance. 

William K.
User Rank
Platinum
Bad Idler bearings break big belt.
William K.   3/9/2012 8:37:47 PM
NO RATINGS
Finding adequate idler bearings is indeed often a challenge. There are a few good ones made for some automotive applications, though. Another choice would be to make your own, using good cam-followers and a machined pulley to press onto it. Probably using a good alloy for the pulley would allow you to do a heat shrink installation and produce a part that would last until something much more expensive wore out.

Of course the weak idlers were probably touted as a great cost reduction item, able to reduce the cost of a $1200 mwer deck by $2. That made somebody a hero, no doubt, but you paid the price instead.

Tim
User Rank
Platinum
Mower decks
Tim   3/10/2012 8:02:19 PM
NO RATINGS
I have had two good riding mowers that have worn out their mower decks well before the engine began to show any signs of wear.  We had a Briggs and Stratton mower that ran great, but after a few seasons, one of the two blades on the deck wore a hole on the side of the deck when it started turning off center.  Investigation showed that a bearing on the housing siezed up, but the shaft continued to rotate and basically destroyed the bearing housing.  The funny thing was that when I went to get the replacment housing and shaft and bearrings, the new design had a grease zerk as well as slightly more robust bearring.  The deck completely failed about a year later when the minimal powder coat paint gave way to a significant amount of rust.

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