This Boston Gear UJNS1516 universal joint is a single U-joint with needle bearings for connecting two rotating shafts at angles up to 30 degrees at speeds up to 1,800 rpm. It compensates for angular misalignment and shaft separation and has a single joint configuration for high torsional stiffness and torque capacity. The hubs, center block, and pins are made of cast steel for strength and durability, and the bored hubs fit onto shafts without the need for machining. A set screw secures the joint into position on the shaft, and a keyway prevents the shaft from rotating in the joint hub. It has a .938" bore on one end and a 1" bore on the other for connecting shafts of different sizes. This universal joint provides a uniform speed ratio between driving and driven shafts, and is suitable for applications requiring moderate torque transmission, such as farm implements, material handling equipment, and drive shafts.
Universal joints (also called U-joints, universal couplings, Cardan joints, Hooke's joints, or Hardy-Spicer joints) are used to transmit motion and rotational power, or torque, between two shafts that are offset at an angle. Most universal joints consist of two yokes and a middle assembly; the hub end of each yoke attaches to a shaft while the yoke ears attach to and pivot around the middle assembly to accommodate shaft misalignment. The type of middle assembly determines its usageâpin and block joints are suitable for transmitting high torque, needle bearing joints are used to handle high rotational speeds, and ball and socket joints are used in applications requiring low backlash (play between moving parts). The body of the universal joint may include a single joint to accommodate only angular misalignments between shafts, or two joints to accommodate both angular and parallel misalignments. Available in a variety of materials and configurations, universal joints are used in applications including motor vehicles, conveyors, medical and optical devices, forestry and mining equipment, robotics and space exploration, and aeronautics, among others.
"p"Boston Gear manufactures gears, gear drives, bearings, valves, shaft collars, couplings, and other power and fluid transmission components. The company, founded in 1877, is headquartered in Charlotte, NC, and meets International Organization for Standardization (ISO) standard 9001:2008 standard.