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VXB 608 ZZ Skateboard Bearings, Double Shielded, Silver (Pack of 8)
|Price:||$8.63 & FREE Shipping on orders over $49. Details|
Specifications for this item
|Brand Name||BC Precision|
|Inside Diameter||8 mm|
|Outside Diameter||22 mm|
|Overall Width||7 mm|
|Item Weight||3.2 ounces|
|Number of Items||1|
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This 608ZZ bearing is a double shielded miniature ball bearing measuring 8x22x7. This single-row bearing is built to support radial loads and has a revolutions per minute (RPM) limit of 34,000 with greased lubrication. It is made from carbon steel for durability and resistance to deformity under heavy loads. This bearing is shielded on both sides to keep lubricant in and contaminants out. The 608ZZ bearing is suitable for use in such applications as skateboards, inline skates, and scooters and comes in a pack of eight.
Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.
Top Customer Reviews
In my case, they're also the perfect thing for my cheap wally world window a/c unit that uses these in the fan motor, with spares for future replacements. (run nearly 24/7, factory set lasted 1 year, current ones from another place 3 years & just starting to squeal on occasion. Now for the adventure of tearing the thing down again and finding out how long these will last!)
2012-03-24 update: These do not hold up well in a motor. One of the ones I put in my a/c fan motor just chewed itself up.
2013-05-17 update: Second pair doing much better than first. I had re-lubed them with thicker oil this time, which seems to have done the trick. Likely the factory lube was just too thin for the application. (higher rpms + higher heat + skateboard quality lube = bearing quickly going dry)
2014-10-06 update: a/c is dead now, too much freon has seeped out. Overall, this pack of 8 bearings was well worth it, they stretched the life of the unit several years past what it would've been originally.
No frills packaging is nice and not wasteful.
They are smooth as silk and for the price they couldn't expect better.
Bottom Line: smooth sealed bearings and a great price.
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Most Recent Customer Reviews
These are great. Got these for my 3d printer. Good quality. Very oily though.Published 3 days ago by G K Fetters
They are OK ... but make sure to know how to install them correctly. the Shields are not strongPublished 2 months ago by Arin Nazari
These came greased up and ready to go! Worked great to replace the bearings on my son's scooter!Published 2 months ago by R.J. III
Yep, repaired a scooter mother with these, certainly a lot lower friction than I expected.Published 2 months ago by Amazon Customer