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Engineered for Customer Applications:

Precision plastic balls are a cost-effective substitute for metallic balls in low load bearings.  Other uses are lightweight check balls, track balls, medical assay beads, plug balls, roll-ons and a variety of other applications.

Injection molded from standard and specialty plastic resins in sizes from 2mm to 1".  Plastic spheres above 1" to 5" are manufactured from extruded rod.  Plastic balls are USA made at our ISO 9000:2008 certified precision ball manufacturing plant in Michigan and shipped worldwide.

Tolerances to +/-.0005" (.0127mm) are possible for certain plastics such as nylon and acetal.  Surfaces can be tailored from rough to highly polished finishes.  Ball can also be made with special fillers and standard or special matched colors.  The physical properties can be downloaded for detailed information for selected plastics used by Hoover Precision Products.


Solid Plastic
Ball Grades:

Grade 0*

Grade I

Grade IIP

Grade II

Grade III



*only available in certain materials


Size Range
Inches

2mm - 1"

2mm - 1 1/2"

2mm - 2"

2mm - 2"

2mm - 5"  
Sphericity
Inches

0.0005"

0.0005"

0.0010"

0.0010"

0.0050"

Tolerance
Inches

+/-0.0005"

+/-0.0010"

+/-0.0020"

+/-0.0020"

+/-0.0050"
Surface
Finish

Polished

Polished

Polished

As Ground

As Ground


Plastic Balls
PLASTICS
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Delrin®
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Teflon®
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USA