1114 and 2056's shooter wheels

[Cash4587]

I noticed that 1114 and 2056 used some blue shooter wheels that seemed to work really well. I just wanted to know if anybody else used them and had any idea what there were. I think they are a McMaster-Carr buy but there are so many products on that site that some things are a little hard to find if you are looking for something specific. If there is any one that can help it is much appreciated!

[mr.roboto2826]

I believe the part number you are looking for is 2477k36 on mcmaster.

[Cash4587]

Originally Posted by mr.roboto2826

I believe the part number you are looking for is 2477k36 on mcmaster.

So they made custom hubs for the wheels?

[HammadB]

McMaster 2477K36 in 60A I believe. They have a 1.25" bore in the middle.
We machined a hub to interface with 1/2" keyed shaft. The hub was just a piece of 6061 round stock turned to press fit into the wheels bore. I took a look at 1114s hubs and they knurled them to make the press fit better. We didn't have the resources to do so but were fine through all of champs.

[Holtzman]

They are in fact 2477K36. We used them both this year and last year with some success. They also seem to have gained reasonably popularity with a number of teams by Champs. I saw 254, 973, 1717, 1678, and probably some others all using them.

Don't spin them over 10,000rpm. Bad things happen. 5-6k rpm

Originally Posted by Cash4587

I noticed that 1114 and 2056 used some blue shooter wheels that seemed to work really well. I just wanted to know if anybody else used them and had any idea what there were. I think they are a McMaster-Carr buy but there are so many products on that site that some things are a little hard to find if you are looking for something specific. If there is any one that can help it is much appreciated!

[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.

[T^2]

Originally Posted by Cash4587

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

We ran ours with about 1/4" to 1/2" of compression. At speed, they noticeably increase in diameter as the urethane stretches (which is why you shouldn't run them at extremely high speeds -- we blew two of them open at the Sacramento Regional). However, in practice the frisbee buckled upward much more than the urethane compressed.

[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).