Industrial Shaft Coupling Rexnord 7300285 Straight Bore Hub With 1-1/8 In Bore And 1-5/8 In Through Bore 1/4 In X 1/8 In Keyway 2-1/2 In Outer Diameter Heads Up Some Surface Rust

Straight Bore Hub Shaft Coupling, 1-1/8 in Bore, single unit ✔️ Bore 1-1/8 in (28.6 mm); through bore 1-5/8 in (41.3 mm)

This straight bore hub shaft coupling is designed to connect two shafts with matching straight bores, enabling reliable torque transfer in compact drive systems. It’s a common choice for conveyors, motors, gearboxes, and pump assemblies in industrial setups.

✅ Bore: 1-1/8 in (28.6 mm); through bore: 1-5/8 in (41.3 mm)
✅ Keyway: 1/4 x 1/8 in (6.35 x 3.18 mm)
✅ Outer diameter: 2-1/2 in (63.5 mm)
✅ Surface condition: some surface rust

💡 What is a straight bore shaft coupling used for in industrial drives?

It helps join shafts in power transmission systems where alignment is straightforward, enabling reliable torque transfer and easy installation.

- Handy for connecting motors to gearboxes, conveyors, and pumps in compact layouts - Maintains shaft alignment under static and dynamic loads - Easy to install with common hardware and a standard keyway size