Martin S25-10 Taper Bushed Type S Weld-On Hub, Steel, Inch, 3.375 inhes, 4.25" OD, 1.75" Length, 1.065" Flange Thickness

This Martin Type S taper bushed weld-on hub is used with Martin taper bushed bushings. Weld-on hubs attach to pulleys, sheaves, or sprockets to provide a tapered bore to match the tapered outer surface of a bushing. The hub is made of carbon steel for strength and resistance to shock, and has a reduced outer diameter for a smaller mounted cross-section. This Martin taper bushed weld-on hub is an accessory for use with Martin taper bushed bushings, which are used in various applications, such as automotive and truck transmissions, agricultural and construction equipment, pumps and compressors, and two-cycle engines, among others.

Plain bearings provide low-friction sliding contact for relative motion between parts of a machine. They are the simplest type of bearing, with no rolling elements, and there are three basic types of plain bearings: radial plain bearings (also called sleeve bearings or bushings) to support rotating or reciprocating shafts, thrust bearings (also called washers) to support axial loads on shafts, and linear bearings to support and guide the motion of parts in a straight line. Flanged sleeve bearings have a flange on one end to support axial loads. Spherical plain bearings are radial bearings that allow for angular misalignment of the shaft. Plain bearings are made from durable, low-friction materials such as sintered or cast bronze alloys, plastic, or a combination of a metal shell and a plastic bearing surface. They can be lubricated externally or by a lubricant embedded in the bearing material. Plain bearings are used in automobiles, construction and mining equipment, textile manufacturing equipment, and robotics, among others.

Martin Sprocket & Gear manufactures power transmission and conveying products. The company was founded in 1951 and is headquartered in Arlington, TX. Martin provides tools that meet American National Standards Institute (ANSI), National Aerospace Standard (NAS), and Deutsches Institut für Normung (DIN) standards.