Posi-Loks are a superior shaft-hub locking solution, eliminating the need for keyways that can weaken or cause excess wear to shaft components. All Posi-Lok models easily slide onto a shaft for mounting and provide reliable, zero-backlash performance. They provide excellent concentricity with minimal radial and axial runout. Since the Posi-Lok’s field-proven mechanical design does not require a keyway, it reduces machining costs and simplifies installation. The Posi-Lok choices are as follows:
Posi-Lok-K Series is a single taper, flanged design, and is available in 4 different models, offering the most versatility for machine designers.
• The PSL-K model is the most economical version, having an unplated alloy steel construction with black oxided socket head cap screws for mounting.
• The PSL-K-B has the same construction as the PSL-K, but includes black oxided hex head screws to allow radial access for mounting the bushing in applications with limited axial space.
• The PSL-K-C has a nickel-plated steel construction and uses plated, socket head cap screws for mounting in applications that require corrosion resistance.
• The PSL-K-F is a stainless steel version of the PSL-K series, with specially coated stainless steel socket head cap screws for mounting in applications requiring a stainless steel material.
With all the versions of the PSL-K series having the same mounting dimensions (shaft diameter, hub bore, and length), there is a variety to choose from to get the ideal arrangement for your machine. The PSL-K series can be interchangeable between the various styles in many applications. The PSL-K series supports Metric and English shaft sizes, and are available for use with shaft sizes from 6mm to 42mm and ¼ to 1-in.
Posi-Lok-G Series is an economical, dual taper design, offering the highest torque capacity in the Posi-Lok family. It is directly interchangeable with a handful of other brand bushings. It has a flangeless design, so it can be recessed in the bore of the mounted component for space-saving. It provides excellent concentricity and offers a great value for your machinery. It is also available in the PSL-G-C series, which is a nickel-plated version having the same dimensions as the PSL-G, adding a corrosion-protected option to the line-up. The PSL-G series supports shaft sizes from 19mm to 120mm.
Posi-Lok D Series is a single taper flangeless design, allowing for a smaller OD and size for the connected component. It is also available in a PSL-D-C model with nickel plating for corrosion protection. The PSL-D series are available for shaft sizes from 6mm to 50mm.
Posi-Lok M Series is a single taper design with a stepped flange that provides a self-centering feature and increased concentricity in an alloy steel construction. It is available for shaft sizes from 20mm to 50mm.
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