Description
Sherline 3307 – Headstock, DC Motor, and
Speed Control Assembly (10,000 RPM)
Sherline headstock/motor/speed control units have long been
popular with tooling designers and home shop users making special
tooling. Why reinvent the wheel when such a powerful, compact and
economical powered spindle already exists? Now we have expanded the
capability of our spindle by offering a pulley ratio that makes
possible spindle speeds of up to 10,000 RPM. It can be used as a
stand-alone unit for custom spindle applications or in seconds it
can replace the standard 2800 RPM max spindle used on all Sherline
lathes and milling machines.
A second pulley position provides a lower top speed but
multiplies the power to provide more torque, particularly at low
speeds. The maximum speed of 2200 RPM approximates the speed of the
standard pulley set provided with all Sherline machines.
Note: Because of the high speed capability of this unit, the
factory preload setting has been reduced from .0002″ of end play to
.0003″ of end play. This allows higher speed and reduces bearing
heating.
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