[FTC]: Chain-driven drive trains

[wgardner]

Originally Posted by RRLedford

Get the new 2-piece Tetrix clamping motor hub from from and make sure to lube the set screw with just a tiny bit of grease so you do not get any on the bore hole. They will stay tight much better than a set screw hub and they better handle the frequent reversing torque that a drive train generates.

Hi Dick,

Can you provide a link to the clamping motor hub you're describing? I can't find it on the Pitsco site. Thanks in advance!

[RRLedford]

Originally Posted by wgardner

Hi Dick,

Can you provide a link to the clamping motor hub you're describing? I can't find it on the Pitsco site. Thanks in advance!

My Bad - this is an AndyMark product and it is NOT a hub but a double split sleeved 16-toothed sprocket and a matching split clamp collar. :

S25-16T 6mm Bore Aluminum Sprocket (am-3185)
LINK→http://www.andymark.com/product-p/am-3185.htm


So as long as you can get the gear ratio you need while being locked in for 16 teeth at the motor sproccket it is an excellent performing item.

BTW- my complaint on the Aluminum alloy is also BOGUS, as it is listed as being 7075, so the one shaky clamp screw thread may have been caused by either a bad hole drilling/tapping or a bad screw thread.

If you can make it over the hump of the high $20 price, you will not be disappointed. The ability to reposition the sprocket axially along the shaft with out having to move the motor or incurring progressive shaft damage from cycled set screw gouges, that eventually lead to hubs jammed onto motor shafts, is an added bonus.

-Dick Ledford

[madz]

Thanks, everyone. For now we've gone with two chains on each side and it works pretty well in testing!