Kerk Motion Products has expanded its Kerk® Spline Shaft Series with the introduction of its new stainless steel option. The Spline Shaft Series can now be manufactured in 304 stainless steel on its SS2 through SS8 Series spline shafts, which range from 1/8-inch to1/2-inch diameters, and include the full range of bushing options for these sizes. The entire spline shaft series includes Kerk’s proprietary, low-friction Kerkote® TFE coating, including all the standard configurations offered in the series. Stainless Steel offers the maximum corrosion resistance and is the most versatile configuration. The Spline Shaft Series has been designed for light to moderate load applications, where low cost, low friction and long life are critical design considerations. This includes any application that requires a rotary drive with adjustable linear position or a linear guide with high torsional stability.

Depending on the particular application, a Kerk Spline Shaft can offer a wide range of benefits. In an application already implementing a ball spline, hex-, square- or D-shaft, it can provide a lower cost alternative without sacrificing positional accuracy. Because of its low-friction performance, it can allow a user to downsize certain process equipment, including motors, reducing heat buildup and energy requirements. Ultimately, its low friction performance will also contribute to longer product life.

The aluminum series continues to be offered as another option for applications requiring its unique characteristics. The Kerkote TFE coating eliminates the need for external lubrication and maintenance.

Kerk’s spline shafts are available with any combination of the following standard features: basic or anti-backlash bushing, plain or thread mount bushing, and ¼-inch, 3/8-inch, ½-inch or ¾-inch diameter shaft. Custom machining of both the bushing and spline shaft is available for mounting considerations or to adapt to any required format.

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