8mm and 10mm bearing speed difference

[GravityMagnet]

ya so whats the deal with the 10mm? are they faster,same or slower

When i look at 8mm there are so many different companies to choose from. And the quality goes from $20 bones reds too some insane $110 bones swiss ceramics. Now i have personally never ridden ceramics but i have some Swiss 6's and they're fast as tits.

But when i look into getting a 10mm precision truck. The bearings you can choose from are very limited (based off Daddies Boardshop). It looks to me that Landy is the only company that makes them. And they have 2 choices. Steel ($25) and Ceramic ($60).

And why is the difference between the 8mm and 10mm ceramics $50 bucks in price??
(im guessing because the 10mm ball bearings are smaller?)

Anyways whats the deal?

pete

[Manofsnazz]

Garver also makes 10mm bearings. Those would be the best choice. In the end, bearings are bearings. I just prefer 8mm cause they're easier to service/take apart/put back together because there's less balls floating around, and biltins specifically take the spacers/speed rings out of the equation. You'll get slowed down more by a bad stance/tuck when racing than you will by bearings, and if you're not racing, none of this should matter anyways.

[enemy combatant]

ya so whats the deal with the 10mm? are they faster,same or slower

When i look at 8mm there are so many different companies to choose from. And the quality goes from $20 bones reds too some insane $110 bones swiss ceramics. Now i have personally never ridden ceramics but i have some Swiss 6's and they're fast as tits.

But when i look into getting a 10mm precision truck. The bearings you can choose from are very limited (based off Daddies Boardshop). It looks to me that Landy is the only company that makes them. And they have 2 choices. Steel ($25) and Ceramic ($60).

And why is the difference between the 8mm and 10mm ceramics $50 bucks in price??
(im guessing because the 10mm ball bearings are smaller?)

Anyways whats the deal?

pete

Dude, MHS 10mm's are only eight bucks and you can get a ten pack for $50.

Mile High Skates

Ceramic bearings are expensive because of the cost of the balls, and 10mm 6900 series bearings have 9 balls instead of the 7 that you find most often on 608's.

You can also go whole hog with all-ceramics and a teflon Delrin cage ($60 per single bearing.)

http://www.vxb.com/Merchant2/merchan...icBallBearings

[Dimm]

Different axle sizes need different bearings.

Absolutely nothing to do with speed.

Someone might try to go on some rant about how more balls means less frictions or something but that's just blah blah blah. Talking about physics over the internet is like talking about religion over the internet.

[killdozer]

The deal is really in axle strength. A 10mm axle is inherently stronger than an 8mm axle and can withstand more abuse. I doubt the idea was a speed difference. If you want something cool, then check out the Sin System bearings. They are 8mm and 10mm in one bearing.
http://www.switchbacklongboards.com/...productID=1370

[EBasil]

Just a technicality, but none of our longboard companies make bearings. They market them, after acquiring them from similar/same sources. In terms of bearings for 10mm axles, there are a few choices out there and SinSystems is the longest-running of those (they've been selling 10mm bearings with adaptors since well before 10mm axles were around).

The 10mm bearings are a little like MiniMisers in that, since the balls are much smaller, they're more susceptible to dirt and damage. Malakai Kingston can attest to that, since he totally destroyed a set of steel-ball bearings "just riding along"... someplace wet and dirty. So, that's the tradeoff for the burly axle and it's a reason I personally think the ceramics make a lot of sense in this bearing size. The Landy and "Sineramics" are both good bearings, but I haven't seen the Sins online anywhere in a long time. I haven't seen the MHS version in person, but remember that "same/similar" source thing and ask about which seal and lube were specced.

Ceramics cost a lot more, "because they can". The mfgr charges more, but this is a premium product and gets priced that way.

[GravityMagnet]

i understand the concept that thicker the mm the stonger. i was just wondering if the 8mm ceramics were better then the 10mm ceramics. and the same with the steel

[Fuentesss]

i understand the concept that thicker the mm the stonger. i was just wondering if the 8mm ceramics were better then the 10mm ceramics. and the same with the steel

better is a vague word but in terms of speed i dont think theres really a difference, but EBasil says that 10mm will crap out on you in dirt and water, other than that theres really just more options for 8mm

[Bookworm]

The difference between 8 and 10mm bearings

[Mile_High_Mark]

@Ebasil -- If you send me your address, I'll send you a set of 10mm bearings to test/try.

[boarderaholic]

i understand the concept that thicker the mm the stonger. i was just wondering if the 8mm ceramics were better then the 10mm ceramics. and the same with the steel

You can't compare 8mm vs 10mm bearings. Those numbers refer to the type of axle it's supposed to fit. IE: If you get Bear 1052's, breaking this down, this means the Bear hangar is 10mm, and baseplate is 52*. So with that information on hand, this would mean that you would need to get a bearing that has a 10mm inner race.

[speshlspeclsteak]

the bigger the axle the faster the bearing, thats why i use 12mm ones on all my rides

[urbs]

get 8mm bearings for 8mm trucks and 10mm bearings for 10mm trucks

[GravityMagnet]

get 8mm bearings for 8mm trucks and 10mm bearings for 10mm trucks

finally something that makes sense to me

[GrandMasterJ]

i was trying to research the dif between 8mm and 10mm

i was thinking about cars and how larger race wheels cover a longer distance in one rotation, than a smaller wheel stock wheels.

so i think the same would apply for bearings in skateboards.

so when riding downhill, 10mm and 8mm bearings probably achieve the same rpm's

same rpm = larger traveling farther

making 10mm faster bearings!

might be a very small difference seeing that its only 2mm

am i right?

make any sense?

[robert borek]

no, because i think its about the size of the ballbearings themselves and not the axle. and the ballbearings in 8mm would be bigger. not that i think it makes ****all difference

[enemy combatant]

i was trying to research the dif between 8mm and 10mm

i was thinking about cars and how larger race wheels cover a longer distance in one rotation, than a smaller wheel stock wheels.

so i think the same would apply for bearings in skateboards.

so when riding downhill, 10mm and 8mm bearings probably achieve the same rpm's

same rpm = larger traveling farther

making 10mm faster bearings!

might be a very small difference seeing that its only 2mm

am i right?

make any sense?

No and no. The speed of the board has very little to do with the size of the wheel and nothing to do with the size of the bearing. You speed is determined by the steepness of the slope. The wheels and bearings (large or small) will turn at the rpm's necessary for that speed.

[rafaplaysguitar]

The difference between 8 and 10mm bearings

I see what you did there.

[GrandMasterJ]

No and no. The speed of the board has very little to do with the size of the wheel and nothing to do with the size of the bearing. You speed is determined by the steepness of the slope. The wheels and bearings (large or small) will turn at the rpm's necessary for that speed.

yeah i guess that makes sense, since there isnt any motorized force driving the wheel