Industrial 33mm-40Tooth-102mm Timing Belt Pulley

The SIT SilentSync W-40S-MPB timing belt pulley is a 40‑tooth, 33 mm‑wide sprocket designed for ContiTech SilentSync belts, delivering a pitch diameter of about 101.86 mm (roughly 102 mm) with an 8 mm pitch. It aligns with the SilentSync 8M‑pitch family, offering precise belt engagement across standard 40‑tooth configurations and a 33 mm belt-contact width. SilentSync pulleys employ Helical Offset Tooth geometry to reduce vibration and noise, with data noting up to 19 dB quieter operation than straight‑tooth pulleys in typical installations. The W‑40S‑MPB variant represents a specific bore/configuration within SIT’s SilentSync pulley lineup, suitable for automation, conveyance, and packaging equipment that uses ContiTech SilentSync belts for quiet, reliable timing.