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.

[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).

[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.

[Cory]

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?

Zero wear.

At 2-7/8" we ran them up to 13,000 RPM with no problems, though our normal operating speed was around 10,500 rpm. That works out to almost 10,000 surface feet per minute. The same surface speed for the 4" wheel would be roughly 9000 RPM, though it's going to expand more and give you a higher effective surface speed.

I know 233 accidentally ran a 4" one up to 13,000 and it exploded nearly immediately.