HTD Belt Pulleys

[GDG 2337]

try these

http://www.sdp-si.com/

http://www.econobelt.com/

[m5burndt]

Thank you! That pretty much solves my problem. I was looking on Mcmaster-Carr before I posted and couldnt find anything.

[m5burndt]

One more question, we are looking for about an 18 tooth HTD-5 pulley with 1/2" bore. Econobelt has them but the biggest is .2500" keyed bore. Would you happen to know if these pulleys are solid aluminum or if they are hollow on the inside? (We hope to bore-out to 1/2" ID, obviously this is not possible if the pulley is a hollow finished-bore)

Thanks again,

James

[KrazyCarl92]

You could also use 4" wheels instead of the 6" wheels from the KOP to get a more reasonable combination of speed and force. You may need to consider other factors along with this decision, such as ground clearance for frisbees beneath the bottom of your frame, but this may help provide more options if you can't find the exact pulley size you'd like for a 6" wheel.

[Chris is me]

The pulleys are solid aluminum. We've machined our own bore into them many times before.

[DonRotolo]

Originally Posted by m5burndt

(We hope to bore-out to 1/2" ID, obviously this is not possible if the pulley is a hollow finished-bore)

The manufacturer often provides info on the maximum sze you can bore out a given sprocket. Look on the Gates site for that data.

Also remember that you need a certain amount of belt wrap for that 18 tooth sprocket to not slip. Slipping even a little bit will cause your belt to self-destruct in a few seconds.