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Neway PM100-4.00 mm Small Series Solid Valve Guide Pilot | Top Diameter .297
Neway Small 100 Series Solid Pilot

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Custom sizes not listed are available upon request. Please allow 7-10 days before shipment.
Our Price: $19.25

Quantity in Stock:2
Availability:: Usually Ships in 24 Hours
Product Code: NEWPM10040

Description Technical Specs
Solid pilot for Neway smaller 100 series cutter heads. Pilot measures.297 on top or cutter side of pilot.

  • Center Portion of Taper (Middle) - 0.1575" (4mm)
  • Widest Portion of Taper (Top) -- 0.1585" (4.03mm)
  • Bottom Portion of Taper Length - 2 1/4" Long
  • Top Portion of Pilot Shaft (Cutter Portion): .297 Diameter - 2 1/4" Long
  • Center-less ground for extremely tight tolerances.
  • Made in USA

  • The following information is from Neway Manufacturing Website Technical Recommendations:

  • The pilot is absolutely critical to getting a concentric valve seat. It “pilots” the cutter by indicating off the same bearing surfaces that the valve stem will be riding on, and carrying that center-line up to the cutter. If the pilot is not straight and concentric, the cutter cannot form a concentric seat. Neway pilots are center-less ground, a process that enables us to hold extremely tight tolerances.

  • Solid pilots have a very slight taper ground into them, so that they lock into the valve guide. The rate of taper is just .0007” per inch (7 microns/cm). This very slight taper means that the pilot will be hanging onto enough of the length of the guide bore to accurately capture the center-line. The flip side of having such a slight amount of taper is that a single pilot can only accommodate a small amount of variance between guide bore sizes, so you will usually require more than one solid pilot for any given nominal size.

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