Quantcast Speed Bearings?

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Old 04-05-2008, 11:11 AM   #1 (permalink)
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Default Speed Bearings?

Did a quick search here on "street luge bearings." Got reams of useless links.

I've developed an experimental gravity vehicle (all terrain luge, skeleton, one-man bob-sled). I want bearings that can handle 70 mph (117 kph) without seizing. My wheels use a non-standard bearing size.

Need to know how to figure out a bearings' speed rating and where I can find various size bearings with this rating. Can anybody help a brudda out?

Thanks
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Old 04-06-2008, 08:45 AM   #2 (permalink)
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Default Re: Speed Bearings?

Quote:
Originally Posted by BluegrassSurfer View Post
Did a quick search here on "street luge bearings." Got reams of useless links.

I've developed an experimental gravity vehicle (all terrain luge, skeleton, one-man bob-sled). I want bearings that can handle 70 mph (117 kph) without seizing. My wheels use a non-standard bearing size.

Need to know how to figure out a bearings' speed rating and where I can find various size bearings with this rating. Can anybody help a brudda out?

Thanks
Talk to a bearing manufacturer, do a search for "bearing manufacturer" and you'll get lots, that list a ton of different bearings, and most list the RPM ratings.
. MOST bearings are actually rated pretty high. a 608 (standard skate bearing) is rated for at least 30,000 RPM's. At 70 MPH on an 83mm wheel you are barely hitting 10K. As long as your wheel is about 60mm or larger, the bearing shouldn't be an issue. Just keep them clean.
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Old 04-06-2008, 09:10 AM   #3 (permalink)
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Default Re: Speed Bearings?

Quote:
Originally Posted by chrismcb View Post
Talk to a bearing manufacturer, do a search for "bearing manufacturer" and you'll get lots, that list a ton of different bearings, and most list the RPM ratings.
. MOST bearings are actually rated pretty high. a 608 (standard skate bearing) is rated for at least 30,000 RPM's. At 70 MPH on an 83mm wheel you are barely hitting 10K. As long as your wheel is about 60mm or larger, the bearing shouldn't be an issue. Just keep them clean.
I second what Chris said. Look in your local yellow pages for Bearing Suppliers and pay them a visit. Take your wheel and axle and walk in and ask them for their help. They should measure both pieces and talk to you about the intended use and should have something for you.
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Old 04-06-2008, 09:28 AM   #4 (permalink)
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Default Re: Speed Bearings?

Quote:
Originally Posted by chrismcb View Post
Talk to a bearing manufacturer, do a search for "bearing manufacturer" and you'll get lots, that list a ton of different bearings, and most list the RPM ratings.
. MOST bearings are actually rated pretty high. a 608 (standard skate bearing) is rated for at least 30,000 RPM's. At 70 MPH on an 83mm wheel you are barely hitting 10K. As long as your wheel is about 60mm or larger, the bearing shouldn't be an issue. Just keep them clean.
Quote:
Originally Posted by bigsteve93015 View Post
I second what Chris said. Look in your local yellow pages for Bearing Suppliers and pay them a visit. Take your wheel and axle and walk in and ask them for their help. They should measure both pieces and talk to you about the intended use and should have something for you.
Mahalo Nui Loa (Thanks very much). Appreciate the feedback. Do you have a personal preference for a good, reliable bearing manufacturer/supplier?

My wheels are 8-9" pneumatic. The bearings are sealed 12 mm ID and 28 mm OD. I believe they come standard with an ABEC 5 rating. Is there a way to convert an ABEC rating to a RPM rating?

I have already built my frames out of 1.5-inch (3/32-inch wall thickness) sqaure aluminum tube (approx. 40 and 46 inch lengths between axles -- random choice around a stand-up dimension I ride) and 0.25-inch aluminum plate. I'm curious though. What are the typical axle width (between wheels) and distance (length) between the axles on a traditional street luge? Is there a site that provides these specs all in one place? Mahalo.

hang loose bruddas

PS: Sadly, I live in a rural community pop. 7,500. Yellow Pages, what's that?
Closest Lowes is 29 miles (Home Depot, 60 miles). My best shot is the internet.
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