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The FREE Thomson's EngineersCALC calculator is four applications in one and provides easy access to commonly needed engineering utilities for motion and machine design professionals. Convert a number from one set of units to another, calculate the inertia of a common shape, determine the density of a material in a particular unit, or look up a common trigonometric or calculus function (see screenshots below). Saving and sharing calculations is easy with built-in email and texting features.Thomson's EngineersCALC Calculator Features: Units Conversion Inertia Calculations Materials Density Reference List Trigonometric and Calculus Reference Email and Text/SMS Sharing Global Settings 28 parameters, hundreds of units Cylinder Parallelepiped Spherical shell Sphere Slender rod Tetrahedron The free EngineersCALC is brought to you by Thomson Industries, Inc, the industrys premier producer of Linear Ball Bushing Bearings and Profile Rail Bearings, 60 Case Shafting, ground and rolled Ball Screws, Linear Actuators, Gearheads, Clutches, Brakes, Linear Systems, and related accessories. Thomson Industries has facilities in North America, Europe and Asia with over 2000 distributor locations around the world.For more information about Thomson visit http://www.thomsonlinear.com