NSK X700 Series with All Quick Connector Back End Styles -KV, -ST, -BA, -WH. See Special Air Dam Requirement for use with our NSK144XXX bearings.Replacement rotor autochuck mechanism with "motion activation" technology. The spindle housing has been further improved by hardening the steel to withstand numerous rebuilds and overhauls. Each rotor is serialized and carries a 6-month warranty. Made in USA
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