Hand Inspected for Quality: 100% hand-inspected twice and micro-polished and ultrasonic solvent washed 3X before final lubrication. Bones Ceramics have a different expansion rate than steel making them actually slower at certain temperatures.

For starters, they feature no ABEC rating. Realising that the ABEC rating isn't really relevant to skateboard bearings, Bones Reds are instead marked as "Skate Rated." Let’s look at the individual parts of a bearings, frequently asked question, and debunk some myths. This stuff can be pretty boring. Lets look at the buzzwords from Bronson which you forget about as soon as you drop in from a quarter: The theory is that the open bearing design throws out dust, water, and dirt. I think this really works given we managed to ride them again after neglecting them for a long time.The metal rings have a micro-thin tungsten lubricant coating that keeps bearings rolling smoother for longer.

Steel bearings are the industry standard for their durability and cost-effectiveness. Steel bearings vary in quality from brand to brand, with steel, sealing, and interior ball bearings being the most important parts. The greater a set of longboard bearings is costly, the higher its quality, as they contain better sealing, higher-quality metals, and more inner ball bearings. When you come to an abrupt stop on your longboard, you’ll feel the difference between high-quality bearings and their lower-cost counterparts. During the manufacturing, the team changed from a standard stamped metal ball retainer to a high-speed precision moulded plastic one that could be removed by skaters to allow better cleaning of the bearing. And as a second major feature, the Bones crew replaced the usual lubricant with a special one they called Bones Speed Cream™. The coefficient of friction is the lowest in the field of Tribology at 0.003% creating a near-frictionless surface. Mainly because the nanoceramic compound eliminates all asperities. Zealous Classic skateboard bearings contain green rubber seals to keep dirt and debris outside the bearing.Mini Logo bearings aren’t the best or durable but they will get the job done. At least they are better than bearings that come with most complete skateboards. Green rubber seals keep dirt and debris on the outside of the bearing lubed with Archoil Nanoceramic grease. We strongly recommend using a 'signed-for service' with the Royal Mail, Parcel Force or a Courier Service. This design provides greater strength and durability (in theory). They are smooth and fast, but also very fragile.