1114 and 2056's shooter wheels

[Karthik]

As a couple of others have pointed out the McMaster part number for these wheels is 2477K36 and the description is: "Large-Bore Urethane Drive Roller, 60A Durometer, 4" Diameter, 0.92" W, 1-1/4" Bore ID". 2056 first used these wheels in 2012, so we decided to try them out this year. They were easy to work with and incredibly robust. They did require a custom hub, but it was a fairly simple part to machine. A drawing of the hub is attached.

Edit: 2056 posted the same info above.

[Cash4587]

Originally Posted by Karthik

As a couple of others have pointed out the McMaster part number for these wheels is 2477K36 and the description is: "Large-Bore Urethane Drive Roller, 60A Durometer, 4" Diameter, 0.92" W, 1-1/4" Bore ID". 2056 first used these wheels in 2012, so we decided to try them out this year. They were easy to work with and incredibly robust. They did require a custom hub, but it was a fairly simple part to machine. A drawing of the hub is attached.

Edit: 2056 posted the same info above.

Thank you SO much for the info, I definatly did not expect to get replies from both teams.

[Michael Hill]

3138 used the same wheel this year and last year. They've worked out great for us.

[Akash Rastogi]

Thanks for posting that information, Tyler and Karthik. I always assumed it was a custom molded wheel before.

[Cash4587]

One more thing, how much compression was typically run with these wheels on the disks?

[Cory]

Originally Posted by Cash4587

One more thing, how much compression was typically run with these wheels on the disks?

We had to run probably 3 times as much compression with this wheel than we did with the blue banebots wheel it replaced. I don't know what that is in absolute terms, but it was a lot.

[Travis Covington]

Originally Posted by Cory

We had to run probably 3 times as much compression with this wheel than we did with the blue banebots wheel it replaced. I don't know what that is in absolute terms, but it was a lot.

It should be mentioned that we were running them at much higher speeds, since ours were turned down to 2-7/8" to match the BB wheels they replaced.

[Akash Rastogi]

Originally Posted by Travis Covington

It should be mentioned that we were running them at much higher speeds, since ours were turned down to 2-7/8" to match the BB wheels they replaced.

How much wear did you experience with these wheels? Did you ever replace them before/during an event?

What rpm would you say is the breaking point of the wheels?

[T^2]

Originally Posted by Akash Rastogi

How much wear did you experience with these wheels? Did you ever replace them before/during an event?

Can't speak for 254, but ours, at 60A durometer, never wore and never had to be replaced (unless they exploded).

[Dale]

What was the advantage of these over the Banebots wheels of the same hardness?

[AdamHeard]

Originally Posted by Dale

What was the advantage of these over the Banebots wheels of the same hardness?

No exaggeration, in the context of this season they pretty much last forever. Our practice bot has shot easily over 10,000 frisbees and the wear is insignificant.

[MichaelBick]

Originally Posted by AdamHeard

No exaggeration, in the context of this season they pretty much last forever. Our practice bot has shot easily over 10,000 frisbees and the wear is insignificant.

To further prove this point, our banebots wheels would shred. When we switched to the MC wheels we started getting a thin film of plastic on the wheels.

[Akash Rastogi]

Originally Posted by AdamHeard

No exaggeration, in the context of this season they pretty much last forever. Our practice bot has shot easily over 10,000 frisbees and the wear is insignificant.

Any comment on approximate RPM it takes to break the suckers as Cory mentioned?

[themccannman]

Originally Posted by Akash Rastogi

How much wear did you experience with these wheels? Did you ever replace them before/during an event?

What rpm would you say is the breaking point of the wheels?

As T^2 already mentioned our wheels did not wear at all, instead the plastic form the frisbees actually got melted/caked onto the wheel. You'll probably run out of frisbees before you wear down these wheels. At their off-the-shelf diameter I would not recommend running them at more than ~8,500rpm for more than ~10 seconds as they will literally tear themselves apart as previously mentioned.

[AdamHeard]

Originally Posted by themccannman

As T^2 already mentioned our wheels did not wear at all, instead the plastic form the frisbees actually got melted/caked onto the wheel. You'll probably run out of frisbees before you wear down these wheels. At their off-the-shelf diameter I would not recommend running them at more than ~8,500rpm for more than ~10 seconds as they will literally tear themselves apart as previously mentioned.

I think this is largely a function of how concentric the hub is. We went a little overbaord on our hubs and they are pretty darn concentric. I saw a few teams running wheels that had the slightest amount of runout and that really was noticeable audibly.