HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Ivan Kirkpatrick
User Rank
Platinum
Air Lubricated Bearings
Ivan Kirkpatrick   9/19/2011 4:08:42 PM
NO RATINGS
I understand that a combination of solid film lubricants like MoS2 that sustain the bearing at low speeds and then transition to an air lubrication mode are quite effective at high speeds in reducing bearing losses.  Bearing systems like these can give very long life as long as the air supply is clean and abundant.

Are any of the motors making use of air lubrication? 

SoCalPE
User Rank
Gold
Bearings
SoCalPE   8/30/2011 4:44:16 PM
NO RATINGS
It's interesting to learn how magnetic efficiencies can lead to optimized motor performance.  What about the frame/bearings?  It'd be interesting to read more about the materials used to handle the small, high-speed bearing surfaces, and how heat is dissipated from these support structures.

Greg Stirling
User Rank
Platinum
Optimizing Brushless DC Motors for High-Speed Applications
Greg Stirling   8/30/2011 2:45:30 PM
NO RATINGS
I agree Dr. Norbert, this is some excellent motor design thoery.  Lighter, high speed, more efficient and cooler running motors will be in demand for years to come...

Perhaps electric airplanes or sailplanes are in our future, we could put solar panels on the wings...



Partner Zone
Latest Analysis
We take a look at 2015's top engineering schools by salary potential for undergraduate students.
If we are going to be creating a network that serves us, one of its most critical nodes will need to be ourselves. This is where wearable technology comes into play.
Researchers at the University of Maryland have achieved a first in lithium-ion battery science: the development of a successful lithium-based battery using one material for all three core components of a battery -- anode, cathode, and electrolyte.
The online Bar Steel Fatigue Database for automotive design engineers has been updated for the fifth time and now contains 134 iterations, or grade/process combinations. It provides better predictability for designing parts with long-term reliability and durability.
FPGAs use programmable fabric to create custom logic, but this flexibility comes at a cost -- usually around 10 times more silicon real estate and 10 times the power dissipation. Can we really claim any FPGA is low power?
More:Blogs|News
Design News Webinar Series
5/21/2015 11:00 a.m. California / 2:00 p.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
6/3/2015 8:00 a.m. California / 11:00 a.m. New York
6/11/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jun 8 - 12, Everything You Ever Wanted to Know about Filters
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Course June 2nd-4th:
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service