Birdcage Bearing 3.004

The Birdcage Bearing 3.004 by Allstar Performance is a precision-engineered component designed for high-performance automotive applications where rotational accuracy and load handling are critical. Built for drag racing, circle track, and street performance builds, this bearing supports heavy lateral and vertical forces common in aggressive driving conditions. Whether you're upgrading a custom suspension, installing a high-horsepower drivetrain, or fabricating a dedicated race vehicle, the Birdcage Bearing 3.004 delivers the durability and concentricity needed for reliable performance at sustained RPM and under extreme cornering loads.

This bearing features a 3.004-inch bore diameter, a specification common in chassis and suspension pivot applications where exact tolerance and minimal runout are non-negotiable. Allstar Performance manufactures birdcage-style bearings to tight tolerances, ensuring smooth operation and extended service life even under constant vibration and shock loads. The compact design—measuring 4.9 × 1.05 × 6.95 inches and weighing just 0.5 lbs—makes it ideal for weight-sensitive builds while maintaining structural integrity. The birdcage cage design allows for proper bearing ball spacing and reduces friction compared to solid-cage alternatives, improving efficiency and heat dissipation during sustained high-speed operation.

Fabricators and performance mechanics commonly specify Allstar birdcage bearings for upper and lower control arm pivots, spindle supports, and specialty suspension mounts in tube-frame chassis and heavily modified street cars. Precision fit and preload adjustment are essential during installation to ensure concentricity and eliminate play. This bearing integrates seamlessly into custom welded assemblies and is compatible with standard bearing races and preload spacers. For anyone building a serious performance platform or restoring a race-proven setup, the Birdcage Bearing 3.004 represents OEM-grade reliability at a professional-grade price point.