This is a spur gear with a solid web, bossed hub and keyed bore, designed to transmit torque between parallel shafts with good strength and alignment.
Main features
- The gear has straight teeth running parallel to the axis, which defines it as a spur gear suitable for parallel‑shaft power transmission and high efficiency.
- A recessed web and thicker outer rim form a shallow “dish” on the side, improving stiffness while keeping weight reasonable; this helps the gear maintain tooth alignment under load.
- At the center is a projecting hub with a cylindrical bore and keyway, allowing secure mounting on a keyed shaft so the gear and shaft rotate together without slip.
Function and typical use
- In a gear train, this component meshes with another spur gear to change speed or torque according to the ratio of their tooth counts while maintaining a constant direction of rotation if used as external gears.
- Bossed, keyed spur gears like this are common in gearboxes, machinery drives, and automation equipment where reliable torque transmission, easy assembly on shafts, and repeatable positioning are required.