Amana Tool 47777 Ultra-Glide High Performance Ball Bearing for 57159

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• Overview
  Amana Tool® uses only the finest industrial quality precision ball bearings available. Bearings are double steel-shielded for extra rigidity and to inhibit dust. A special high-performance, high-temperature grease is used for maximum life.
  
  
  Ultra-Glide High Performance Ball Bearing Guide Assemblies
  
  
  Ultra-Glide™ bearing assemblies feature satin-smooth Delrin® sleeves. Delrin® is an industrial synthetic plastic material similar to nylon, and will leave no marks on the material being cut. Applications include solid surface materials such as Gibraltor®, SSV®, Corian®, Surell®, and Fountainhead®, etc. Plexiglas® & other clear acrylics; and plastic laminates. Not recommended for regular wood applications due to a higher wear factor. Bearing # 47709, 47725, 47726, 47731, 47733 include Teflon® dust shields. These bearings provide a better seal to increase bearing life while routing materials that generate very fine dust particles (such as solid surface).
  
  
  Note: Solvents should not be used to clean ball bearings, as this will deteriorate the special grease. 'Frozen' bearings (ones that do not rotate freely), should be replaced immediately.
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