PRECISION CUSTOM
MACHINING SOLUTIONS
TAILORED FOR YOU

Spindles are a vital part of the CNC machining operations of many companies, but too many CNC managers find that parts are no longer available for the spindle that is the center of their operation. This is why GMN USA offers custom machining solutions. We can fabricate a replacement part for your spindle that meets all OEM specifications– and our services cover all makes and models.

SPINDLE PARTS

Some of the spindle parts we can custom fabricate include:

Shaft
Nuts

Housing
Nuts

Bearing
Journals

Bearing
Spacers

Stator
Housings

Stator
Cooling Sleeves

…and much more!

Re-Engineered Parts
for Your Spindle

We draw from decades of experience and knowledge of what it takes for spindle repair and design of new components. Considering that most of our spindles operate at speeds greater than 60,000 RPM, we are accustomed to working within tight tolerances. With our expert team of machinists, technicians, and engineers, GMN USA can be your source for all your custom machining solutions for ferrous and non-ferrous metal components.

OD / ID
GRINDING

Our team grinds the ODs and IDs of housings, nuts, shafts, bearing bores, etc. We always meet or exceed all your tolerances to provide excellent surface finish, concentricity, and radial/axial runout.

SURFACE
GRINDING

GMN USA surface grinds parts to tolerances as close as 0.001mm. Using precision rotary grinders, we can grind bearing seats, housings, or spacers to these extremely close tolerances, which is crucial when building high-speed spindles.

SPINDLE SHAFT
FABRICATION

Our facility is equipped with the technology to repair or completely re-manufacture spindle shafts. In our spindle reconditioning process we grind, chrome plate, and re-grind all the shaft’s crucial diameters, including bearing journals, shoulders, and tool interfaces.

Examples of tool interfaces we grind include:

  • ID Tapers (such as HSK, CAT, SK, BT, ВВТ. and KM)
  • OD Tapers
  • Special ID Pilots

If a spindle shaft replacement is what you need, we can even reverse engineer and manufacture a new shaft.

CUSTOM
FIXTURES

GMN USA can design and manufacture custom fixtures, including spindle brackets, special adapter sleeves, tool interface adapters, and test rigs.

SPINDLE
MODIFICATIONS

With our custom machining capabilities, we can modify all spindle components. We modify spindles for additional speed, higher stiffness, or increased life expectancy Often it is necessary to add more sealing or drainage to a spindle. Another frequent custom machining solution is fitting a different style of electrical plug onto a spindle to match the customers needs.

CUSTOM
TOOLING

GMN USA custom manufactures all the tooling for spindle repair. Examples include shaft and housing locking-nut tools, special bearing pushers, preload testing equipment, and bungs for grinding applications.

Reach out to [email protected] to find out if your
spindle repair requires a custom machining solution.