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View Poll Results: What drivetrain did your team use this year
4 wheel tank 51 17.29%
6 wheel tank 158 53.56%
8 wheel tank 24 8.14%
10+ wheel tank 0 0%
Swerve Drive 4 1.36%
Omni Drive 6 2.03%
Mecanum Drive 35 11.86%
Tank Treads 0 0%
Articulating Drive train (butterfly, nonadrive, octocanum) 10 3.39%
Other 7 2.37%
Voters: 295. You may not vote on this poll

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Unread 02-06-2013, 16:56
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DampRobot DampRobot is offline
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AKA: Roger Romani
FRC #0100 (The Wildhats) and FRC#971 (Spartan Robotics)
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Re: What Drivetrain?

Quote:
Originally Posted by Tom Line View Post
Yes. We destroyed probably a half dozen bearings in a non-loaded low speed application. We ended up not using that particular mechanism on the robot. However, the incidents of failure left us with a very low opinion of the current generation of hex-bearings.

Our application was single shaft non-cantilevered (supported by bearings at both ends). The bearings blew out sideways after the races cracked.
That's amazing... I've never seen anything like it. We used hex bearings, and even Vex Pro hex bearings, on very high axial load, high torque and cantilevered shafts without any problems. Perhaps there was a bad set?
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