View Single Post
  #1   Spotlight this post!  
Unread 20-01-2007, 23:24
MrForbes's Avatar
MrForbes MrForbes is online now
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,029
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: Mystery Sprockets

Quote:
Originally Posted by aaeamdar View Post
Our mentors have told us that normal operation of the wheels places significant wear and tear on the wheels such that you really should use the steel sprockets. However, if you know this isn't the case, could you elaborate further?
The wheels use rather large sprockets, with many teeth, and usually the chain wraps more than half way around the sprocket, so the load on each tooth is relatively small. The aluminum sprockets are strong enough for use on wheels, and the smallest size you can commonly get is 24 teeth, I believe.

However, the transmission sprockets are a different story. Some use as few as 9 teeth, so the load per tooth is significantly higher.

The general way of doing things is to use steel sprockets at the drive end of the chain, and aluminum sprockets at the wheel end of the chain. It works.
Reply With Quote