PMI Wide Split 50mm Axle Lock Collar - Black Anodized 8mm Keyslot - Universal Karting

Locking down your rear axle components is non-negotiable for translating raw engine output into forward momentum, which is why our online kart store stocks the exact hardware needed to eliminate driveline shift. The PMI Wide 50mm Axle Lock Collar delivers 35mm of robust, unyielding support to keep your bearings, hubs, and carriers locked dead-center under extreme lateral loads. When you are pushing the limits of your briggs and stratton lo206 horsepower, chassis flex and component shift are the enemies of speed. This two-piece, black anodized aluminum collar features a precision-machined slight shoulder that optimizes bearing alignment, ensuring your axle spins freely without binding. The integrated 8mm keyslot provides anti-slip security, clamping down with immense force so your driveline stays exactly where you set it.

Driveline Stability for High-Torque Go Kart Transmissions

Modern racing demands absolute precision. Whether you are running a direct drive setup or managing the torque multiplication of advanced go kart transmissions, axle shift can lead to thrown chains, bound bearings, and scrubbed speed. The PMI wide lock collar's extended 35mm profile spreads the clamping force over a larger surface area of the 50mm axle. This prevents the collar from digging into the axle material while providing superior resistance against lateral thrust forces generated during high-G cornering. The split two-piece design allows for rapid installation and adjustment without the need to remove hubs, carriers, or slide components off the end of the axle—a massive time-saver in the hot pits.

Seamless Integration with Wheel Bolts and Wheel Accessories

A perfectly aligned rear track is essential for predictable handling. By locking your axle bearings and sprocket carriers firmly in place, this collar ensures that your rear track width remains consistent, allowing your wheel bolts and other wheel accessories to function without induced stress from axle deflection. The black anodized finish not only provides a premium, professional aesthetic but also protects the high-grade aluminum from corrosion and track debris. Although this specific wide-profile model is being phased out, its performance remains top-tier for racers needing maximum clamping force on heavy-duty setups.

• 50mm Axle Compatibility: Precision-bored for a perfect fit on all standard 50mm racing kart axles.
• Wide 35mm Profile: Maximizes surface area contact to eliminate lateral component shift.
• 8mm Integrated Keyslot: Locks securely into the axle keyway for ultimate anti-slip protection.
• Two-Piece Split Design: Enables fast, hassle-free installation without disassembling the axle.
• Machined Alignment Shoulder: Facilitates perfect bearing contact to reduce friction and wear.
• Black Anodized Finish: Delivers a professional look while resisting corrosion and track debris.
• High-Strength Aluminum: Provides robust clamping force without adding unnecessary rotational weight.

Frequently Asked Questions

Q: Is this collar compatible with all 50mm kart axles?

A: Yes, this collar is precision-bored to fit all standard 50mm racing kart axles. The integrated 8mm keyslot ensures it locks securely into the axle keyway for maximum anti-slip protection.

Q: Do I need to remove my hubs or carriers to install this collar?

A: No. The two-piece split design allows you to install or adjust the collar directly on the axle without the need to disassemble your rear end, saving you significant time in the pits.

Q: Why should I choose a 35mm wide collar over a standard width collar?

A: The 35mm wide profile provides a larger surface area for clamping. This is ideal for high-torque setups, as it prevents the collar from digging into the axle material while offering superior resistance against lateral thrust forces during high-G cornering.

Q: How does the machined shoulder help with axle performance?

A: The integrated shoulder is designed to optimize bearing alignment. By ensuring your bearings are seated correctly against the collar, it helps the axle spin freely and reduces unnecessary friction and binding.

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