12x28x8 6001 Ceramic Individual
$17.99
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12x28x8 Ceramic metal shield 12mm Inside diameter 28mm Outside diameter 8mm wid 6001-zz 6001 zz 12x28 Ceramic Abec 5 Ceramic Silicon Nitride Si3N4 balls Chrome steel races Nylon retainers Metal no contact shields JimsBearings PTFE oil Ceramic Hybrid Ceramic Hybrids last up to 10xs longer than Chrome Steel bearings. These are used in applications where high speed, load and temperature are a factor. Ceramic balls are harder and rounder than stainless & chrome steel, so therefore they offer less rolling resistance.
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