Collet Nuts suit precision and high-speed applications.

Press Release Summary:

Heat-treated, low-friction ER Collet Nuts employ friction-bearing design with wear-resistant surface that allows for high clamping forces without need to over tighten. Nuts include retaining clip to reduce unbalancing of nut, lessening need to re-balance after assembly. Cross section between nut and race provides durability of solid nut with increased clamping force and concentricity of bearing nut.

Original Press Release:

Parlec To Introduce New Standard ER Collet Nuts

Fairport, N.Y. - May 7, 2004 - Beginning in July, Parlec will offer its new ER Collet Nuts for high precision and high-speed applications. The new friction-bearing design of these collet nuts allows for extremely high clamping forces without the need to over tighten, and will soon be standard on all Parlec ER Collet Chucks.

According to Dave Hartman, toolholding product manager at Parlec, "The tightening forces in these ER Collet Nuts yields a 300 percent improvement in breakaway torque over traditional solid nuts and a 40 percent improvement over coated nuts. Also, the large cross section between the nut and race provides the durability of a solid nut with the increased clamping force and concentricity of a bearing nut."

An expanded life of the nut results from both the heat treating process that provides an extremely wear-resistant surface and the remarkably low friction that reduces forces from twisting the top of the collet.

Available for demonstration at this year's International Manufacturing Technology Show (IMTS), Sept. 8-15 at Chicago's McCormick Place, Parlec's latest collet nut includes a retaining clip to reduce unbalancing of the nut, lessening the need to re-balance after assembly.

Parlec, Inc., with headquarters in Fairport, N.Y., has over a half century of experience in CNC tooling innovations and manufactures entirely in the U.S.A. With over 750 distributors throughout North America and Europe, Parlec serves all tooling, workholding and tool measuring needs with its seven product lines and over 8,000 individual products. For the latest information visit

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