Shaft Collar 3/4in

The Shaft Collar 3/4in from Allstar Performance is a precision clamping collar engineered for reliable shaft positioning and alignment in motorsports, machine tool, and mechanical assembly applications. Designed for use with 3/4-inch diameter shafts, this collar provides a secure, repeatable grip without permanent modification to the shaft itself. Whether you're assembling engine components, drivetrain systems, or custom fabrication projects, a dependable shaft collar is essential for maintaining consistent spacing and preventing unwanted axial movement during operation.

Manufactured from lightweight aluminum, the clamp-on design allows tool-free or minimal-tool installation and removal, making it ideal for adjustable setups and rapid reconfiguration. The natural aluminum finish resists corrosion while maintaining a low profile weight of just 0.11 pounds, critical for high-performance applications where unsprung mass matters. The clamping mechanism distributes load evenly across the shaft diameter, reducing stress concentration and extending component life compared to set-screw designs that can create stress points or shaft damage over time.

This collar suits fabricators, race builders, and maintenance technicians working with 3/4-inch rotating or stationary shafts in gearbox assemblies, pump shafts, or custom drivelines. The compact 4-inch overall length integrates seamlessly into space-constrained installations without interfering with adjacent components. Installation requires only hand-tightening of the clamping mechanism; no special tools or expertise needed, though proper torque application ensures optimal holding force and prevents slippage during peak load or vibration cycles.