The S2M Timing Belt with a length of 316 mm refers to a specific type of timing belt with S2M tooth profile and a total length of 316 mm. Here’s a quick breakdown:

• S2M: This stands for a specific timing belt profile where "S" indicates a synchronous profile, and "2M" refers to a tooth pitch of 2 mm. It’s typically used in precise applications like 3D printers, robotics, or CNC machines.
• 316 mm: The total length of the belt. The number of teeth can be calculated based on the tooth pitch and the length.