pic: 114's new tensioner

[Ben Piecuch]

We're looking at implementing a cantilevered drive system like this, and am wondering if those bearing blocks are absolutely neccessary. We'd rather just bore the 2"x1" rail to accept a flanged bearing/bushing, and not have to machine a "complex" bearing block. Are teams finding that the 1/8" rail wall isn't strong enough? Or is the support span on the axle too narrow for the applied torque? Or, are teams simply not following the KISS rule and making unneccessary machining for themselves?

If we have to go to a bearing block setup such as this, I do really like the tensioner outlined here. I agree that it can be made simplier, maybe out of just one piece. How does the cross rail mate up this to assembly, and does that connection (bolted or welded?) interfere with any of this?

Thanks,

Bengineer
Team 228