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  • Spherical-roller bearings graduate to a new class
    Advances in materials, design, and processing have combined to triple bearing life. EDITED BY KENNETH J. KORANE Explorer bearings are available in both sealed and unsealed versions, and are dimensionally interchangeable with existing spherical-roller bearings. They have higher load ratings and up
  • When space is at a premium
    , support radial loads. Needle rollers go between the cup bore (outer raceway) and shaft OD (inner raceway). Most applications depend on a housing press-fit to both size and locate the bearing. The design can accommodate seals, additional oil holes, and hold grease, if needed. Drawncup bearings
  • Tribometer Lifetime Study of Wheel Bearings
    In automotive applications, bearings form an integral part of many subassemblies, e.g., axle, engine, gearbox, etc. and their accurate characteristion needs to take into account the final configuration of the bearing system. In the case of ball and tapered roller bearings, different types
  • Slick bearings slash friction
    SKF in Sweden has developed a new family of bearings that reportedly reduces friction and energy consumption by at least 30%, compared to standard ISO products. New Energy Efficient bearings reportedly reduce energy consumption more than 30%, depending on bearing size and operating conditions
  • Cooler-running wheel bearings help racers burn up the track
    on bearing size. Proper grease load, combined with more efficient bearing rollers that rely on point contact rather than elliptical face contact, and reshaped roller ends, reduce friction, wear, and lower
  • The X's and O's of Linear Guides
    Here's how bearing construction affects moment and load capacity. Linear guides house recirculating-ball or roller bearings in a runner block mounted on a profiled rail. Some linear guides have multipart seals to keep lubrication in and contaminants out. X-style rolling elements inside the bearing
  • Thermoplastic Bearings Offer Design Flexibility
    complete with ball raceways. In addition to maximizing bearing life, formed raceways eliminate a requirement for postmold machining. Because machining is not required, it is possible to make the bearing races almost any shape imaginable. For example, pulleys, rollers, precision gears, and fixing clips
  • Cool running
    to accurate and repeatable cutting processes. Timken credits tighter bearing tolerances with the improved rotational accuracy. Machine tools are one of the most challenging environments for bearings. This is particularly true for gear-cutting equipment. Such machines put significant loads on spindle

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