Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Ball bearing and rolling cylinder motors

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Watson, D.B. ; Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand ; Watson, W.R.

The speed-current characteristic for electrically conducting cylinders has been measured while rolling on parallel rails, current flowing from rail to rail through the cylinders. The characteristic is similar to that of the ball bearing motor. A heavy load can be carried by the rolling cylinders, but there is a minimum current below which the rollers come to a standstill. In the case of stainless steel rollers the load increases with this minimum current at the rate of 2.8 kg/A. However, for carbon rollers the load is proportional to the square of the current, as predicted by electromagnetic theory, rising at the rate of 1.8× 10-2 kg/A2. As an alternative to the electromagnetic theory, a model based upon thermal expansion is also discussed

Published in:

Magnetics, IEEE Transactions on  (Volume:35 ,  Issue: 1 )