627 Ceramic Inline Skate Bearings 8 piece 7x22x7mm Si3N4 for 7mm Axles

Description

NOTE: These bearings are ABEC7 size 627 2RS bearings for 7mm axles NOT 608 bearings for 8mm axles. The inner diameter is 7mm which some skates use please check your particular skates to see if this is what you need. If not, we also sell 608 ceramic skate bearings which are for standard 8mm axles with an inner diameter of 8mm under eBay item 260823171349.
With our National and World Champion reputation in the high performance ball bearing industry we set out to engineer the best ceramic skate bearing at any price.
First we started with our tried and tested Ceramic Nitride Pro Series
silicon nitride balls (Si3N4). The same super hard balls that gave us the reputation as "the hardest balls in the industry." These balls are matched for consistent concentricity per set. They are polished using diamonds for a super smooth and shiny finish. Their durability is unmatched by any other ball or material in the industry. With a melting temperature of 2552 degrees F and the best modulus of elasticity in the world, these are the best balls period.
We use a special synthetic lubrication in our ceramic skate bearings
which has an extremely wide service temperature range of from -50 to +120 degrees Celsius with an incredible speed factor of 1 million.
We integrate our HSR inner ball bearing cage for durability and strength with superior heat resistance at high RPMs. This insures that your ceramic skate bearings
will spin faster, longer.
We seal our ACER SK8 ceramic skate bearings
with two no contact grey seals which will resist the elements while allowing simple removal for easy cleaning when necessary. Each bearing is laser etched with our trademark "CERAMIC NITRIDE PRO SERIES" logo to insure that you are receiving the original ACER
SK8 ceramic skate ball bearings
.
These are the best ceramic skate bearings
at any price. Whether used in your
skateboard
,
inline skates
,
roller skates, longboard
or anywhere a size 627 size 7x22x7mm
ball bearing
is used, rest assured you will be running the finest ball bearings in the industry.
For easy cleaning we sell the best Skate Bearing Cleaner it is called the Mega Bearing Blaster under eBay item 261459624839