pulleys

pulleys

This topic has 3 replies, 2 voices, and was last updated 8 February 2016 at 21:20 by Chris Smith 13.

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5 February 2016 at 13:52 #224036
Chris Smith 13
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@chrissmith13
can anybody help? I have an old Nu-Tool 4/12 inch horizontal bandsaw which has had the motor and pulleys changed .

what size should the pulleys be? the motor runs at 1420 rpm. The current pully is a "2 1/2 motor side to an unknown size on the wormdrive. Many thanks Chris
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5 February 2016 at 13:52 #39378
Chris Smith 13
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@chrissmith13
bandsaw
6 February 2016 at 11:24 #224121
Robbo
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@robbo
Chris,

Have had a quick look at my ancient Warco bandsaw, of the same generic type, which have a 3-speed pulley set.

The motor is 1/3 HP 1420 rpm, so yours sounds OK.

The 3-step pulleys measure, across the rim, as follows

motor pulley 47, 54, 66 mm across outside diameter. Largest nearest to motor casing.

drive pulley corresponding sizes 94, 74, 54 mm across outside diameter

The width across the 3 pulleys is 48 mm

The pulleys are cast iron and a bit rough (only machined in the 'V' ) so measurements are to nearest mm.

Edited By Robbo on 06/02/2016 11:25:23
8 February 2016 at 21:20 #224505
Chris Smith 13
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@chrissmith13
Robbo

Thanks for info, will try and find some now.
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