Glebar Grinder PG-9BHD | 4″ Cap, 13µm Accuracy, 9″ Whl, Round & Cylindrical Parts, 04′ – #50920

Liberty Machine # 50920 Category Make

Glebar Grinder PG-9BHD is a centerless form grinder for producing spherical and cylindrical components from pre-form or rod made of ceramic, glass, plastic, rubber, Teflon, and rubber.

New – 2004
Serial No. 04-1419

Grinding Diameter Capacity:
– Minimum…………0.002” (0.05mm)
– Maximum…………4” (100mm)
– Diameter…………0.0005”
– Roundness…………0.0005”
Work Wheel – Glebar grinder:
– Diameter…………9” (229mm)
– Power…………10 HP
– RPM…………2,400
– Length………….10 1/8” (257mm)
Regulating Wheel RPM…………10 – 400
Hydraulic Pump Motor Power…………2 HP
Electrics – 440V/3Ph/60Hz
Dimensions – Catalog…………47” x 39” x 50”H
Weight – Catalog…………2,000 Lbs.

* Preliminary specifications, subject to verification.

Centerless form grinders like the Glebar grinder are precision machining tools used in the manufacturing industry to produce complex cylindrical components with exceptional accuracy and surface finish. Unlike traditional center-type grinding methods, centerless form grinders eliminate the need for center holes or workholding fixtures, enabling continuous, high-volume production.

At the heart of a centerless form grinder like the Glebar grinder is a grinding wheel, which rotates against the workpiece to remove material and shape it according to the desired form. The workpiece is fed between the grinding wheel and a regulating wheel, which acts as a support and controls the rotational speed. This arrangement allows for precise control over the shape, size, and surface finish of the workpiece.

Centerless form grinders like the Glebar grinder excel in producing parts with intricate profiles, such as threads, tapers, and contours, with consistent precision and repeatability. They are commonly used in industries such as automotive, aerospace, and medical, where tight tolerances and superior surface finishes are critical.

The advantages of centerless form grinding include improved productivity, reduced setup time, and the ability to process a wide range of materials. Additionally, the absence of a center hole eliminates the risk of deflection and distortion, resulting in higher accuracy and better concentricity.

In summary, centerless form grinders like the Glebar grinder are highly efficient machines that deliver exceptional precision and surface finish, making them indispensable in the production of complex cylindrical components.

Read more about centerless grinding HERE and HERE.

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