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Re: Needle Bearings for Drivetrain
Quote:
Originally Posted by Peter Matteson
Needle bearing are great for the right application. ...
I would say that I have not yet seen a good application for their use in FRC that makes the extra effort worth it. As always use your own good engineering judgement to determine if they are worth the effort and are appropriate for the application.
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As said above, needle bearings are definitely usable in the proper FRC applications. 1519 used open needle bearings (MSC #7571169) in 2008 for the rear axle bearings on our "Speed Racer" robot, because they were the only bearings we could get that would fit in the small amount of space we had available. They worked great, although since the ones we used were open within, they did require a fully round shaft (not keyed) where the shaft passes through the bearing.
They can definitely handle high loads and high RPM. My Triumph TR6 car uses needle bearings in all six of the driveshaft / axleshaft U-joints and they handle both high torque and high speed pretty well.
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Ken Streeter - Team 1519 - Mechanical Mayhem (Milford Area Youth Homeschoolers Enriching Minds)
2015 NE District Winners with 195 & 2067, 125 & 1786, 230 & 4908, and 95 & 1307
2013 World Finalists & Archimedes Division Winners with 33 & 469
2013 & 2012 North Carolina Regional Winners with teams 435 & 4828 and 1311 & 2642
2011, 2010, 2006 Granite State Regional Winners with teams 175 & 176, 1073 & 1058, and 1276 & 133
Team 1519 Video Gallery - including Chairman's Video, and the infamous "Speed Racer!"
Last edited by Ken Streeter : 11-06-2012 at 20:47.
Reason: added part number for MSC needle roller bearings used on Speed Racer
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