No, MXL series timing belt pulleys are not compatible with other belt series. MXL (Miniature Extra Light) timing belts and pulleys are specifically designed to work together, with precise tooth profiles and spacing that match each other. Each timing belt series, such as XL, L, H, and others, has its own unique pitch (the distance between the centers of two adjacent teeth) and tooth profile.
Using a pulley from one series with a belt from another series can lead to improper meshing, slippage, increased wear, and potential failure of the belt drive system. The MXL series has a pitch of 0.080 inches, which is different from other series, making it incompatible with them. For optimal performance and longevity, it is crucial to use pulleys and belts from the same series.