Mailing List flyrotary@lancaironline.net Message #29754
From: Bobby J. Hughes <bhughes@qnsi.net>
Subject: Custom Pulleys and calculator
Date: Thu, 26 Jan 2006 07:52:48 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
http://www.csgnetwork.com/pulleybeltcalc.html .. This is an easy calculator for pulley speeds.
 
Motion systems at  http://www.large-gears.com/ will build custom pulleys for $125 each. Send the one you want them to copy and specify the new size. If you are not in a hurry they will run them through a hardener process for free. Or the will do steel. My alternator pulleys are the same size as the main pulleys. The small alternators I am using kick on at 1250 rpms.
 
Bobby
 
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