CERAMIC HYBRID "CH SERIES"
GRADE 5 BALLS / ABEC 5 CARTRIDGE RATING
THE BALLS are made from
pure Silicon Nitride material with extreme high density from uniform compaction (3.25 g/cm3). The micro-structural development
of this material during manufacture is second to none. These high precision Grade 5, SI3N4 pure ceramic balls
are 5/1,000,000” from exactly round in sphericity. They are 60% lighter in weight, and 7 times harder than steel.
Friction is reduced to near zero.
THE RACES (AVAILABLE IN RADIAL OR ANGULAR
CONTACT DEPENDING UPON THE APPLICATION) start with
vacuum de-gassed alloy hardened to Rockwell C-64. These high precision races are cryogenically treated not once,
but three times during the final "super polishing" phase. Cryogenic treatment means taking the races down
to minus 300º Fahrenheit to nomalize the crystalline structure of the material so that the races will resist the hardness
of the ceramic balls and get the maximum wear potential. This critical treatment to the races is left out by many manufacturers,
but not by Enduro.
THE RETAINERS are nylon with Graphite and are virtually frictionless.
THE SEALS are "LLB" low contact labyrinth type, with 2
sealing lips which fit into a matching groove on the inner race. The outer sealing lip repels dirt and water
while the inner sealing lip retains the grease. When the bearing is first turned, you will notice some grease will come out
of the seals. This fills the chamber between these 2 sealing lips, forming a “hydromatic seal.” Seal
material is NBR rubber.