5" or 6" pneumatic wheels.

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Re: 5" or 6" pneumatic wheels.

Postby drmacgyver » Tue May 06, 2014 5:10 pm

psychotiller wrote:
drmacgyver wrote:
Pediglide wrote:maybe it'll be better to just use the MBS bearing and wrap the axle with a spacer with a bit of loctite inside...?


Or using the skate bearings you have there, find an aluminum or pvc pipe with a thickness that would fit the gap and shave a ring off the end of the pipe?



That's exactly what I was thinking. Then also get some washers with 8mm id/ 28mm od to cover/keep the pvc seated. Good Job drmcgyver!


Thanks! :D The washer would be a nice finishing touch. Sanding the pvc to get it nice and grippy would probably help a layer of loctite red stick (similar to pediglide's original suggestion). If the pvc is a tight enough fit it might not even be necessary.
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Re: 5" or 6" pneumatic wheels.

Postby LEVer » Tue May 06, 2014 5:38 pm

No, not red. Loctite red is for metals, it'll eat the plastic. I think Loctite has one specifically for plastics.
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Re: 5" or 6" pneumatic wheels.

Postby drmacgyver » Tue May 06, 2014 6:16 pm

Pediglide wrote:No, not red. Loctite red is for metals, it'll eat the plastic. I think Loctite has one specifically for plastics.


Oh damn, I thought red was just a permanent version of blue. Thanks for the clarification :)
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Tue May 06, 2014 6:30 pm

Just got my set. Will end up getting a new board for this one for more wheel clearance. Too bad no specific bearing available. Will have to see what fits.
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Re: 5" or 6" pneumatic wheels.

Postby drmacgyver » Tue May 06, 2014 6:33 pm

Will a hub adapter need to be designed from scratch or are there any other options available?
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Tue May 06, 2014 7:25 pm

Just went to Home Depot and couldn't find anything that will work. All of the pvc was either 3/4" or 1".
We may need to make spacers. I'm going to put the smackdown on google tonight.
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builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Tue May 06, 2014 7:26 pm

torqueboards wrote:Just got my set. Will end up getting a new board for this one for more wheel clearance. Too bad no specific bearing available. Will have to see what fits.


I may do that as well.
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builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Tue May 06, 2014 7:48 pm

Psychotiller what bearings are you looking for 8x28x9?

638 ZZ C/3 ABEC3 Bearing 8x28x9,638 Z, USBB Brand (LB)
http://www.ebay.com/itm/638-ZZ-C-3-ABEC ... RTM1562569
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Tue May 06, 2014 8:32 pm

torqueboards wrote:Psychotiller what bearings are you looking for 8x28x9?

638 ZZ C/3 ABEC3 Bearing 8x28x9,638 Z, USBB Brand (LB)
http://www.ebay.com/itm/638-ZZ-C-3-ABEC ... RTM1562569


Yeah, I saw those and that would be the size, But I was hoping to do better than abec 3. Are you going to order these? I think this may be the only bearing supplier shipping from the states...
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6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Tue May 06, 2014 9:11 pm

This is what we need. Then we could use Abec9 608's

FlatStreetSpacer2822608.jpg
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www.psychotiller.com

builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Tue May 06, 2014 10:06 pm

I got those ABEC3 ones just to have. Yeah, would be nice to make a spacer like that. Most likely wouldn't be feasible though for just us lol. I'm not that talented yet to do it by myself. Can you do it?
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Tue May 06, 2014 10:16 pm

torqueboards wrote:I got those ABEC3 ones just to have. Yeah, would be nice to make a spacer like that. Most likely wouldn't be feasible though for just us lol. I'm not that talented yet to do it by myself. Can you do it?


I could have them made but it would be $200 for enough for the 2 of us...Kind of ridiculous.

I found another US supplier for Bearings:
http://www.avidrc.com/product/1/bearings/724/8x28x9-Metal-638ZZ-bearings.html?cc=1
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builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Tue May 06, 2014 10:19 pm

psychotiller wrote:
torqueboards wrote:I got those ABEC3 ones just to have. Yeah, would be nice to make a spacer like that. Most likely wouldn't be feasible though for just us lol. I'm not that talented yet to do it by myself. Can you do it?


I could have them made but it would be $200 for enough for the 2 of us...Kind of ridiculous.

I found another US supplier for Bearings:
http://www.avidrc.com/product/1/bearings/724/8x28x9-Metal-638ZZ-bearings.html?cc=1


Yeah LOL. I might be able to get them made for cheaper than $200 but IMO anything over $50 is too expensive lol. We would need 8 of those things too.

I like the cheaper solution lol. Those are nice $8 total w/ shipping in US. Are you getting those? I might just get these too.
Last edited by torqueboards on Tue May 06, 2014 10:21 pm, edited 2 times in total. View post history.
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Tue May 06, 2014 10:21 pm

I ordered some.
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builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Tue May 06, 2014 10:27 pm

Is there room on the axle to fit the 9mm width of the two bearings. Original is 7mm that's extra 2mm is 4mm extra on each. Can you still get a few threads on the nut?
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Tue May 06, 2014 10:33 pm

torqueboards wrote:Is there room on the axle to fit the 9mm width of the two bearings. Original is 7mm that's extra 2mm is 4mm extra on each. Can you still get a few threads on the nut?


Yeah it should be fine
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builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Wed May 07, 2014 4:34 pm

Messed around with the pulley today. I tried to used collar nuts throughout the process hoping to not have to drill through the spokes but I wasn't able to get it quite right...May still just drill a few holes. The one good thing though was that the 9mm pulley is going to center up perfect on these randalls.

2014-05-07 14.17.49.jpg
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2014-05-07 18.33.19.jpg
2014-05-07 18.33.19.jpg (83.93 KiB) Viewed 755 times
Last edited by psychotiller on Wed May 07, 2014 8:37 pm, edited 1 time in total. View post history.
www.psychotiller.com

builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Wed May 07, 2014 5:20 pm

Cool. Can't wait to get mine in. Should be on it's way. Do you think the 44T on that pulley is good for the gearing ratio of that wheel? I wouldn't be surprised if more people buy these 6" pneumatic tires soon.

Why wasn't it fitting right? Is it due to the holes on that pulley that you have? Would be nice if they fit lol. I actually only designed those for ABEC 11 Flywheels.

For mine, I'm probably going to 3D print a hub centric adapter and use a few different polycarbonate pulley wheels in different sizes. 158mm tire, 280kv 50mm SK3 motor, 6S, 40T/16T would be about 40 to 44mph. Although, not sure how the starting torque will be. Will definitely have to try it out. If not a 45/50T perhaps.
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Re: 5" or 6" pneumatic wheels.

Postby drmacgyver » Wed May 07, 2014 5:31 pm

If you guys can crack this and get good results on the road, make sure you post a follow up with parts/prices. I'm watching this thread like a hawk. lol. :shock:
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Wed May 07, 2014 5:33 pm

drmacgyver wrote:If you guys can crack this and get good results on the road, make sure you post a follow up with parts/prices. I'm watching this thread like a hawk. lol. :shock:


I can't wait to ride on GRASS and dirt! lol
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Wed May 07, 2014 6:00 pm

This is what I was going to roll with for now. Do you think it wont pull enough? 35mph or there-abouts doesn't seem so bad right?

Voltage 22.2 / Motor RPM 5439
Motor KV 245 / Distance rolled/one revolution 0.47728
Wheel Size 158 / Meters per minute 2595.92592
Motor Pulley 17 / Meters per hour 155.7555552
Wheel Pulley 44 / Miles per hour 96.7819850902
Circumference of wheel 477.28
Gear Ratio 2.5882352941
MPH TOP SPEED 38
Last edited by psychotiller on Wed May 07, 2014 6:11 pm, edited 1 time in total. View post history.
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builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Wed May 07, 2014 6:08 pm

torqueboards wrote:Cool. Can't wait to get mine in. Should be on it's way. Do you think the 44T on that pulley is good for the gearing ratio of that wheel? I wouldn't be surprised if more people buy these 6" pneumatic tires soon.

Why wasn't it fitting right? Is it due to the holes on that pulley that you have? Would be nice if they fit lol. I actually only designed those for ABEC 11 Flywheels.

For mine, I'm probably going to 3D print a hub centric adapter and use a few different polycarbonate pulley wheels in different sizes. 158mm tire, 280kv 50mm SK3 motor, 6S, 40T/16T would be about 40 to 44mph. Although, not sure how the starting torque will be. Will definitely have to try it out. If not a 45/50T perhaps.


The 44 I bought from you has 6 holes and the wheel has eight spokes (holes in larger pattern as well)
I used a a big washer and drilled 3 holes for the pulley and 4 holes for the wheel. I put some barrel nuts between the spokes and screwed it all together with 6mm hardware.

Think its gonna work! I got it all centered up. Cost 4 bucks in hardware.

*the wheels have a large hole for the valve stem allowing the tube to bubble though...I bought a few rubber washers to put around the valve stem inside the hubs. That closed the gap.
Last edited by psychotiller on Wed May 07, 2014 11:27 pm, edited 1 time in total. View post history.
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builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Fri May 09, 2014 2:38 pm

I received the 8x28x9 bearings today and they seem to be a little sloppy fitting...Weird because I have some 10x28x9 bearings that fit perfectly :roll:
www.psychotiller.com

builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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Re: 5" or 6" pneumatic wheels.

Postby torqueboards » Fri May 09, 2014 2:41 pm

psychotiller wrote:I received the 8x28x9 bearings today and they seem to be a little sloppy fitting...Weird because I have some 10x28x9 bearings that fit perfectly :roll:


What's messed up about the new bearings? I bought some other bearings on ebay too. I'll see which ones are better. Wondering when I'll receive my wheels.
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Re: 5" or 6" pneumatic wheels.

Postby psychotiller » Fri May 09, 2014 3:00 pm

torqueboards wrote:
psychotiller wrote:I received the 8x28x9 bearings today and they seem to be a little sloppy fitting...Weird because I have some 10x28x9 bearings that fit perfectly :roll:


What's messed up about the new bearings? I bought some other bearings on ebay too. I'll see which ones are better. Wondering when I'll receive my wheels.


They fit too loosely. Guess I could tape them but I would rather have a perfect fit.
www.psychotiller.com

builds:
XT Wheels/Custom Hub & mount on Randal 180's/Drop Throughhttp://endless-sphere.com/forums/viewtopic.php?f=35&t=59259
6" Pneumatic Tire Drop Down/Drop Through http://endless-sphere.com/forums/viewtopic.php?f=35&t=60449
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