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sales@rncbmx.com
Don't trust ceramic balls well these steel bearings are for you then.
Races are CNC machined from heat treated and aged 6al-4v with a tensile strength of 170,00 psi then electroless nickel silicon carbide plated. The electroless nickel creates a layer of 70 rockwell plating with the silicon carbide nano particles being a 9.5 on the mohs scale nearly as hard as diamond for long lasting bearing life.
Seals are all cnc machined from PTFE teflon for long lasting smooth frictionless operation