For Rent: Hydraulic Nut & Pump June 14, 2018 by Lauren Ansley, PTI PTI now offers a Hydraulic Nut & Pump rental program. Question: What is a hydraulic nut? Answer: A hydraulic mounting nut is a reusable tool used to assist with bearing installation. Question: How does it work? Answer: It contains a piston that pushes on the inner ring of the bearing as hydraulic pressure is applied, gently pushing the bearing up the tapered adapter sleeve to its final position. As the hydraulic pressure increases, the force of the piston gently pushes the tapered bearing up the adapter taper. This causes the bearing inner bore to slightly expand, which removes the internal clearance from the bearing, creating a press fit of the inner ring to the shaft. During mounting, the bearing clearance should be measured until you achieve the recommended mounted running clearance for the bearing size. Once the bearing is properly mounted, the HMV nut can be replaced with the standard KM nut and washer or lock clip. Hydraulic nuts with inch threads are also available on request. PTI includes a spanner wrench, extra O-rings seals, nylon screw or gauge retention and hydraulic plugs with each hydraulic nut purchase. Contact us for more details Click for 2018 catalog (pg 310) Click for Rental Flyer *** About PTI: Upon opening in 1994, PTI has specialized in serving the growing niche market of Metric products. As demand has increased over the years, so has our product offering. Today, our customers enjoy a huge offering of both Metric and Inch-based products for the Industrial Power Transmission Industry. Want to learn more about PTI? Click here to view our company overview video. View our products, other case studies, videos and more at www.ptintl.com.