SMTA BELT PULLEY SIZE

Bud W · Feb 1, 2011

I contacted the guys at Paper Pulleys Inc and asked if they knew what size Belt Pulley would have been standard on a SMTA. They answered that they thought the SMTA used the 9 1/2 inch H pulley instead of the larger 11 inch M pulley. I was surprized so thjought I wopuld ask for your opinions.

D Slater · Feb 1, 2011

SMTA operators manual that came with a tractor lists the standard size as 11 inch dia. with a 7-1/2 inch face as regularly supplied with belt pulley attachment. 12 X 8-1/2 or 13 X 8-1/2 is listed as optional. Parts book shows 11 inch as the smallest.

gene bender · Feb 1, 2011

The size was an option it all depemded on what you used the belt for. The old thrasher machines sometimes had large pulleys . If you see a steam engine they had pretty large pulleys it all needs to come together to get whatever you are running up to its speed.So there was no common just what someone ordered.

The Dukester · Feb 3, 2011

Standard size pulleys on the older 4 cylinder gave a sort of slow belt speed compared to the speeds of most other makes of tractors so you might need a next size larger than stock for your useage. Example...we found we could blow a lot more silage with our Gehl belt powered blower with a W9 pulley on our W6 or SMTA...or even the W6 pulley on our H. Farmalls run about 2600 FPM with stock pulleys...2 cylinder John Deeres run over 3200 FPM.

SMTA BELT PULLEY SIZE

Bud W

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D Slater

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gene bender

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The Dukester

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