Q11. What Is A “Torque Tube” Bearing Or A “Thinex” Bearing?

"Torque Tube" bearings and "Thinex" bearings are generic industry names for “Thin Section Ball Bearings”.  While not required, Torque Tube bearings often have an extended inner ring to provide a stronger and stiffer bearing (minimizing torque) than its thinness would allow otherwise.

Generally, Thinex ball bearings are thinner given the same outside diameter than Torque Tube ball bearings (the term Thinex may have been derived from "thinest"); however, there is no standard definition for either in the bearing industry.

Whether called Torque Tube or Thinex ball bearings, Thin Section Ball Bearings are often used as specialized Instrument Ball Bearings where low friction and high accuracy are required, where space is at a premium, and where load support is less important than shaft location.


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To learn more about what the ISO 9001 standard is, the differences between the 2015 and 2008 versions, and how AST verifies customer satisfaction: Learn About AST Bearings’ certification to ISO 9001:2015

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