Azusa LC138 Aluminum Axle Lock Collar - 1 3/8 Inch - All Classes
$8.91 USD
Sale price
$8.91 USD
Regular price
Preventing lateral shift in your hubs, bearings, and brake carriers is non-negotiable under high G-forces, which is why our online kart store recommends the Azusa LC138 1 3/8-inch aluminum axle lock collar for absolute driveline stability. Machined from high-grade billet aluminum, this two-piece split collar provides 360-degree clamping without distorting the axle tube, ensuring your driveline remains perfectly aligned from the grid to the checkered flag.
Essential Hardware for Mini Parts and Full-Size Chassis
Whether you are dialing in a cadet chassis using specific mini parts or locking down a high-horsepower senior setup, axle security dictates your power delivery. A shifting axle binds the bearings, creating parasitic drag that robs top-end speed. By integrating this 1 3/8-inch lock collar into your assembly, you guarantee that sprocket alignment stays true, mitigating thrown chains and premature sprocket wear. The integrated 1/4-inch keyway locks directly into the axle's key stock, providing a secondary mechanical fail-safe against rotational slipping under heavy braking or acceleration.
Integration with Go Kart Pedals and Braking Systems
Driveline rigidity directly impacts your stopping power. When you stomp on your go kart pedals, the brake rotor must remain perfectly centered within the caliper. If the axle shifts laterally, the rotor drags against the pads, boiling the brake fluid and causing severe fade. This heavy-duty lock collar anchors the axle against the bearing cassettes, maintaining the critical tolerance required for a firm, responsive brake pedal. Trackside adjustments are rapid; simply loosen the dual bolts to slide the axle or swap components without fighting bound-up hardware.
Trackside Maintenance: Tools Tire and Driveline Prep
Efficient pit work wins championships. When you are thrashing between heats with your tools tire pressure gauge in one hand and a T-handle in the other, you need hardware that responds predictably. The dual-bolt fastening system on this collar ensures even torque distribution, preventing stripped threads and galled aluminum. It is a mandatory addition to any serious racer's toolbox, providing peace of mind when the track grips up and chassis flex peaks.
- Precision CNC Machined: Ensures perfectly concentric clamping around 1 3/8" axles without tube distortion.
- Two-Piece Split Design: Allows for rapid installation and trackside adjustments without removing hubs.
- Integrated 1/4" Keyway: Locks into standard key stock to prevent rotational slipping under extreme torque.
- Lightweight Aluminum Construction: Minimizes rotating mass while delivering maximum clamping force.
- Dual-Bolt Fastening: Evenly distributes torque to prevent thread galling and hardware failure.
- Universal Fitment: Compatible with sprint, oval, and yard kart setups utilizing a 1.375" rear axle.
- Vibration Resistant: Maintains clamping pressure despite the harmonic resonance of high-RPM engines.
Frequently Asked Questions
Q: How do I know if the Azusa LC138 is the right size for my kart?
A: This collar is specifically designed for 1 3/8-inch (1.375") rear axles. Please measure your axle diameter with a caliper before purchasing to ensure a proper fit, as it will not fit standard 1-inch or 40mm axles.
Q: Does this collar require me to remove my rear hubs for installation?
A: No. The two-piece split design allows you to install or remove the collar anywhere on the axle without needing to slide off your hubs, bearings, or brake carriers.
Q: What is the purpose of the integrated 1/4-inch keyway?
A: The keyway allows the collar to lock into your axle's existing key stock. This provides a mechanical fail-safe that prevents the collar from rotating or slipping under the extreme torque of heavy acceleration or braking.
Q: How tight should I torque the dual bolts?
A: You should tighten the bolts evenly in an alternating pattern to ensure the collar clamps concentrically. Avoid over-tightening to the point of stripping the threads; the dual-bolt design is intended to provide high clamping force with moderate, even torque.
Q: Can this collar help with brake drag?
A: Yes. By preventing lateral axle shift, this collar keeps your brake rotor perfectly centered within the caliper. This prevents the rotor from rubbing against the pads, which reduces parasitic drag and prevents brake fluid fade.