Solid Rigid Coupling - 1" ID, 2" Wide, 3" Long, Black Oxide with Keyway - Heavy-Duty RC-100-KW Precision Shaft Coupler for Industrial & Mechanical Applications

Heavy-duty solid rigid shaft coupling with 1 in bore, 2 in OD, 3 in length
✔️ 1 in bore, 2 in OD, 3 in long; 1/4 in keyway; 3/8-16 screw; RC-100-KW

This solid rigid coupling locks two shafts in precise alignment to efficiently transmit torque in industrial machinery, automation lines, and workshop setups. It's sold as a single unit in a black oxide finish, designed for fixed-drive applications where exact spacing matters.

✅ Bore: 1 in (25.4 mm)
✅ Outer diameter: 2 in (50.8 mm)
✅ Width: 3 in (76.2 mm)
✅ Keyway: 1/4 in
✅ Screw: 3/8-16 in
✅ Finish: Black oxide
✅ Part: RC-100-KW
✅ Weight: 32 oz (0.91 kg)

💡 What is a solid rigid coupling and when should I use a black oxide keyway version?

Solid rigid couplings provide a fixed, non-slip connection that keeps shafts aligned while transferring high torque. Handy for machines where shaft spacing is fixed and precision matters. - high torque transmission with fixed shaft alignment in industrial drives - handy for conveyors, milling centers, and automation lines - keyway plus set screws prevent slip under load - black oxide finish offers modest corrosion resistance in shop environments