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Spindles 101

Spindles 101

Need Frictionless Rotary Motion? “T” Series Spindles Provide a Fast, Effective, Precise Solution

Let’s explore some basic information about air bearings. US patent filing US20160363165A1 describes an Air Bearing Structure as a porous material combined with an aluminum layer with vents to provide double restrictions so as to enhance the degree of freedom in adjusting the diameter parameter of porous material.

The vents are distributed in a matrix pattern and have a diameter of nanometer order. This design ensures the uniformity of the vents and the unification of the infiltration. Also, the vents can be directed in the same direction to enhance the bearing ability, air film stability and static rigidity.

Other publically available articles describe the evolution of air spindles into rotary equipment. The Designs called Spindles – Basics and Best Practices describes spindles as machinery subsystems that integrate shafts, bearings, and power-transmission components such as belts and ball screws, motors, and in some cases, drives and controls to output axial rotation. Today, spindle designs are more sophisticated and customized, varying with the applications for which they’re used. Traditional designs feature power supplied from an electric motor via a belt-and-pulley system or gearbox; other spindles are built with the motor wrapped around the integrated design.

Drew Devitt, a previous design engineer and current advocate of New Way, writes in Air Bearings Take Off how air bearings run on a controlled film of pressurized air that is typically less than 0.0005-in. thick. With traditional, or orifice-type bearings, air flow is controlled through holes and grooves drilled or cut into the bearing face. Porous bearings, on the other hand,use the natural permeability of a carbon material to control air flow to the face. Air is delivered through a permeable material formed with millions of holes that allow the distribution of air. The superiority of porous media is why it is New Way’s choice for air bearing design for all its products. Our Porous Media Technology utilizes a porous carbon material inherent with millions of sub-micron holes. A thin yet robust air film is created across the entire bearing surface providing an even distribution. This removes the concern of pressure gradients and as a result is able to provide greater precision on a consistent basis.

Learn more about what we have to offer in the way of air spindles and how you can improve your manufacturing processes by using them. New Way® Spindles offer higher precision by utilizing porous graphite technology to benefit the interface between the rotor and stator with an even cushion of air. The New Way Air Bearing porous graphite technology provides increased rotational speed, higher level precision, and crash resistance.

If you would like additional information on New Way’s “T” Series Air Spindles, do not hesitate to contact us with your questions and we will respond to your request promptly.

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