Neway PF100-1/4"-.001 | Small Series Solid Valve Guide Pilot | Top Diameter .297

Description

Neway PF100-1/4" -.001" | Small Series Solid Valve Guide Pilot | Top Diameter .297
Center Portion of Taper (Middle) -
0.2485" (6.31mm)
Widest Portion of Taper (Top) -----  0.25" (6.35mm)
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.
SATISFACTION GUARANTEE:
We strive to provide superior service and products to our customers. Please allow us the opportunity to resolve any issue before leaving negative feedback.