400L100 - Timing Belt, L, (1In X 40In Pl), 107T

Precision synchronous timing belt — L — 0.375" (9.525 mm) pitch, light duty. Synchronous (toothed) belts transmit power with no slip, maintaining exact speed ratios between drive and driven components. Ideal for indexing, positioning, and high-precision motion control applications in commercial and industrial equipment.

Q: What does the belt pitch number mean?

A: The pitch is the distance between tooth centers. A smaller pitch (e.g. 3M, 5M, XL) suits lighter loads and higher speeds. A larger pitch (e.g. 8M, 14M, H, XH) handles higher torque at moderate speeds. Always match the replacement belt pitch exactly to the sprocket tooth pitch.

Q: Can I use a wider belt than the original?

A: A wider belt of the same pitch will carry more torque — acceptable if the sprocket is wide enough to support it. However, always verify the sprocket width before installing a wider belt. A belt that overhangs the sprocket flanges will track incorrectly and wear prematurely.