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We designed and built a bearing specifically for the R45 hubset. As with every [King bearings], these stainless steel sealed bearings are made in-house in Portland, Oregon and individually hand-checked for precision and smoothness. Our proprietary bearing design allows us to place more rolling elements per bearing meaning greater durability and precision. R45 bearings also feature lightweight, low-friction seals for fast rolling and can be easily serviced at regular intervals using only a single 2.5 mm hex wrench and penknife.

We make our own ceramic bearings and we build them to the same exacting standards as our classic, time-tested stainless steel ball model. Pairing the corrosion resistance of ceramic balls with our proven sealing system allows for greater flexibility with greasing options. We build our ceramic bearing R45 hubs with a very small amount of silicone-based lube for a system with very low drag. Take advantage of our user-serviceable bearings and run minimal lubrication for the ultimate in race-day performance.

The R45 hubset also has the option of stainless steel sealed bearings. As with every King bearings, these bearings are made in-house in Portland, Oregon and individually hand-checked for precision and smoothness.

Your high performance engine build deserves the most advanced internal components designed to withstand the highest loads and RPMs. So what makes King Engine fag Bearings track tough and street smart? All King bearings are designed with the closest wall tolerances in the industry, with all shells matched to 0.0001". Greater rod bearing height improves bearing-to-bore contact and heat transfer, greatly reducing spin potential at high RPMs. Utilizing enlarged and chamfered oil holes for equal distribution under heavy load, King bearings are built tough enough for even the highest temperatures at the fastest engine speeds. Versatility is the name of the game which is why King offers the industry's widest selection of sizing including special clearance options for advanced custom builds. 

Engine bearings require proper tolerance to be measured before purchase. If you are not sure what size iko bearings your build requires, please consult a professional engine builder. We are not responsible for incorrectly ordered bearings and can not take returns or provide exchanges on any engine internal components. 

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