Altra Holdings, Inc., through its subsidiary, Altra Industrial Motion, Inc., designs, produces, and markets a range of mechanical power transmission and motion control products worldwide. The company provides industrial clutches and brakes for elevators, forklifts, lawn mowers, oil well draw works, punch presses, and conveyors; open and enclosed gearing products for conveyors, ethanol mixers, packaging machinery, and metal processing equipment; and engineered couplings for extruders, turbines, steel strip mills, and pumps. It also offers engineered bearing assemblies for cargo rollers, seat storage systems, and conveyors; power transmission components for conveyors, lawn mowers, and machine tools; and engineered belted drives for pumps, sand and gravel conveyors, and industrial fans. The company sells its products under the Warner Electric, Boston Gear, TB Wood’s, Kilian, Nuttall Gear, Ameridrives, Wichita Clutch, Formsprag Clutch, Bibby Transmissions, Stieber, Matrix, Inertia Dynamics, Twiflex, Industrial Clutch, Huco Dynatork, Marland Clutch, Delroyd, Warner Linear, and Bauer Gear Motor brands through its sales force, industrial distributors, and independent sales representatives. It serves aerospace, energy, food processing, general industrial, material handling, mining, petrochemical, transportation, and turf and garden markets. The company is headquartered in Braintree, Massachusetts.