Spur Gears

Spur gears are cylindrical, straight-cut gears transmitting motion and power between parallel shafts, making them the most common and simple gear type. Key specifications include the number of teeth, Pitch Diameter, and Module (metric) or Diametral Pitch (English) to ensure correct meshing, typically at a 20° Pressure Angle. They are generally manufactured from materials like steel, brass, or engineered plastics. Ideal for moderate speeds, they are found in applications ranging from automotive systems to industrial machinery and household appliances. Their simple design offers high efficiency and constant velocity ratio.