Durable 4.5 Inch Cast Iron Single Groove Pulley Designed For 5L Belts With A 5/8 Inch Bushing, Delivering Reliable Belt Grip, Smooth Power Transfer, And Easy Shaft Mounting On Standard 5L Drive Systems

4.5 in Cast Iron Single-Groove Pulley for 5L Belts
✔️ 4.5" OD, single groove, 5L belt ready, 5/8" bushing

This 4.5 inch cast iron pulley is designed for 5L (B section) belts and comes with a 5/8 inch bushing to fit on a 5/8" shaft. Its two-piece construction delivers a tighter grip and reduced belt slip, making it ideal for small to mid-size drive systems such as air compressors, fans, and conveyors.

✅ 4.5" outside diameter (114.3 mm) cast iron pulley, single groove
✅ accepts 5L/B belts, 1/2" wide (12.7 mm)
✅ includes 5/8" (15.9 mm) solid steel bushing for secure mounting
✅ two‑piece design provides stronger shaft grip and lower belt slip
✅ fits standard 5L belt drives on 5/8" shafts

💡 What is a pulley used for and how do you pick the right one?

Choosing drive components is mainly about matching belt type, groove count, and shaft size. - Handy for power transmission in compact drive setups - Match belt width and groove to prevent belt slip - Ensure the shaft bushing size is correct for secure mounting - Look for durable materials that tolerate heat and humidity