ZT premature idler pulley failures

[big bubba]

members: have only around 225 hrs on a commercial zero turn, runs great. recently have had 2 idler pulley bearings go out (drive & blade). pulleys are kind of pricey ($60) and i'm looking into getting just the bearings if they are a press fit, etc. any ideas why they should be going out so soon? machine is kept under cover
only put around 30 hrs/yr on the machine strictly for my own use. btw jacks small engine on line is a terrific source for about any small engine/mower part. thanks in advance.

 

[arkydog]

oscar wilson in st. peters, mo is another good place. seems they have been in business 60 0r 70 years. always had good luck with them.