Nook Industries (Cleveland, OH) has recently introduced its miniature metric 8x6 Ball Screw (BS) designed for light load applications that deliver fast speed and close tolerance positioning. The rare size (8mm diameter x 6mm lead) is the only precision-rolled 8x6 on the market and is designed for compact applications that require the dual ability to be fast and precise-ideal for accurate positioning requiring a rapid approach and retraction.Nook’s Precision Screw Group originally developed the 8x6 BS as part of its Miniature Metric Ball Screw Development Project primarily for medical applications. The combination of small screw and high-precision, however, is also well suited for a myriad of broad-based light load applications requiring close positioning and fast speed including; military, optics, instrumentation, sensors, etc.According to Nook Design Engineer Kevin Hardin, “Manufacturing of compact ball screws requires pushing the limits of material capability- that’s why we offer corrosion resistant stainless steel (Dynamic Rating: 133 lbf; Static Rating: 108 lbf) for medical and atmospheric applications and alloy steel (Dynamic Rating: 302 lbf; Static Rating: 367lbf) for general purpose utility that requires higher load capacities. We also push the limits of design, offering two distinct ball nut mounting options-standard V-thread (M15x1) allowing easy system level integration and custom solutions including integral flanges, involute splines, and many other customized configurations based on specific application need.Nook’s 8x6 BS is manufactured using precision rolled technology instead of grinding - which significantly lowers cost without compromising precision. Custom ball screw end machining options are also available to accommodate custom motor/bearing combinations.
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