#16 in Skateboard parts
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Reddit mentions of Bones Bearings Reds Skate Bearings (8mm, 16-Pack)
Sentiment score: 2
Reddit mentions: 2
We found 2 Reddit mentions of Bones Bearings Reds Skate Bearings (8mm, 16-Pack). Here are the top ones.
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Strong, long lasting, non-contact, removable rubber shield for easy cleaning and less frictionHigh speed nylon ball retainer for greater strength and speedPre-lubricated with Speed Cream racing lubricantBones Bearings products have a lifetime warranty which protects them against manufacturing defects.
Specs:
| Color | n/a |
| Height | 0.25 Inches |
| Length | 3 Inches |
| Release date | March 2007 |
| Size | 8mm |
| Weight | 0.3086471668 Pounds |
| Width | 2 Inches |
I just bought these on amazon... came in a 16 pack to change all 8 wheels, and came with rollerblade sized spacers with the 8mm bearings. Some of the product reviews say they don't come with spacers, so I'm not really sure. The spacers that came with the wheels that came with my skates didn't fit in the new wheels I bought, but the spacers that came with the Bones Reds fit perfect.
I'm guessing if you bought an 8 pack, they might assume you were buying bearings for skateboard wheels and include a skateboard tool instead.
Someone else recommended those bearings, and I'm extremely happy... I roll completely across the park. Maybe buy the 16 pack and replace them all.
>As the title suggests. Picked up a pair of Macro blade 80 Rollerblade's with slow roll. I thought I was upgrading my Zetra blades but the Macro's seem so much slower( lots of work).
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>Any suggestions on an Amazon upgrade wheel/bearing package for outdoor asphalt/concrete skate.
As far as free-spin of the wheels goes, the stock bearings for the Macroblades are a sealed bearing lubricated with a silicone-based grease. In general, grease-lubricated bearings do have a "run-in" period where they do not spin quite as freely as they will once they're run-in & warmed-up.
"Grease lubricated super-precision bearings initially run with a relatively high frictional moment. If they are run at high speeds without a running-in period, the temperature rise can be considerable. The high frictional moment is due to the churning of excess grease, which takes time to work its way out of the contact zone." (source)
Though, it should be noted that, in truth, oil-lubricated bearings also have a similar "run-in"/"break-in" requirement - see here.
As far as slower skating speed and requiring more work to get/keep going, the stock wheels for the Zetrablades and the Macroblades are of the same hardness: 82A. in general, a harder wheel rolls better, as a harder wheel deforms less under load, and loses less energy to hysteresis - "The primary cause of rolling resistance when a body (such as a ball, tire, or wheel) rolls on a surface is hysteresis. This is attributed to the viscoelastic characteristics of the material of the rolling body." If both skates were using the stock wheels (or identical replacements), both would experience the same energy losses, assuming all else is equal.
And, as you describe your Zetrablades as "well worn" & mention using a lithium grease to lubricate the bearings in those skates, I would presume that you are not using the original wheels or bearings in the Zetrablades?
With regard to potential upgrades, pretty much any serviceable bearing from a reputable company (examples: the ILQ series from TwinCam, or the Reds series from Bones) will do, and wheels for outdoor use should generally have a somewhat higher durometer than that of the stock Zetrablade/Macroblade wheels - something like these, these, or these (all 80mm/85A) would work well.