Gates 8M-45S-12 Poly Chain Taper Lock Sprocket

This Gates 8M-pitch taper lock timing pulley is a matched component for Gates Poly Chain GT and PowerGrip GT synchronous belt drive systems. Using Gates pulleys with Gates belts ensures the tooth engagement geometry is maintained to published design tolerances, maximising drive efficiency and service life.

Where this product is used

Gates timing pulleys and sprockets are matched components for Gates synchronous belt drive systems. Typical applications include:

• Synchronous belt drive systems in industrial automation, packaging machinery and robotics
• Poly Chain GT Carbon and PowerGrip GT3 drive assemblies requiring matched sprocket profiles
• High-speed, low-noise precision drives where exact speed ratios and minimal backlash are essential

Key specifications

Selecting the right option

Select by belt pitch (8M or 14M) to match your Poly Chain GT belt, then by tooth count and bore type. Pilot bore sprockets are machined to your exact shaft and keyway; taper lock sprockets use a split bushing for quick, secure fitting and removal without pulling the shaft. Gates sprockets typically outlast 2–3 belt changes, so a worn belt does not automatically mean a new sprocket is needed — check tooth wear before replacing. Stainless steel sprockets are available where corrosion resistance is required (food-grade, washdown or marine environments). Always match the sprocket profile to the belt series — Poly Chain GT sprockets are not interchangeable with HTD profiles even at the same pitch. Not sure which pitch, tooth count or bore type you need? Contact AIMS for full drive design assistance.