MAPLE ACE UC205-16K 1-Inch Rear Axle Bearing - Free Spinning - Universal Kart

Minimizing driveline friction is the most direct path to freeing up horsepower, and the MAPLE ACE UC205-16K 1-inch rear axle bearing is engineered specifically to eliminate parasitic drag on your racing go kart. By utilizing a high-precision spherical outer ring and a perfectly toleranced 1-inch bore, this bearing ensures your rear axle remains perfectly aligned even under extreme chassis flex during high-G cornering. The robust insert design locks securely to the axle via dual set screws, preventing lateral migration and maintaining your precise track width and hub spacing.

Why Top Teams Trust Parts Are Us for Driveline Efficiency

When every thousandth of a second counts, relying on subpar bearings is a critical mistake. Just like you wouldn't compromise on your lo206 carburetor kit tuning, your axle bearings demand the same level of mechanical scrutiny. This UC205-16K bearing features a regreasable lubrication hole and high-grade metal shields that repel track debris, rubber marbles, and dust. Whether you are running a dirt oval setup or a high-grip sprint chassis, the low-drag grease formulation inside this bearing ensures maximum rotational freedom right out of the box.

Essential Upgrades: From Brake Oil to Bearings

A fast kart is a synergistic machine. While many drivers focus heavily on engine tuning or bleeding their system with fresh brake oil, the rolling resistance of the chassis is often overlooked. Upgrading to the UC205-16K reduces the rotational mass resistance, allowing your engine to spool up faster out of tight hairpins. It's a fundamental upgrade that complements every other performance modification on your chassis.

The Core Parts Of Us: Technical Specifications

Designed for the rigors of competitive racing, this bearing is built to handle heavy radial and thrust loads without binding. The spherical surface allows for self-alignment within the bearing cassette, compensating for slight chassis tweaks or bent hangers.

• Precision 1-Inch Bore: Machined to exact tolerances for a slip-fit on standard 1-inch racing axles without galling.
• Spherical Outer Ring: Self-aligning design prevents binding when the chassis flexes under heavy cornering loads.
• Dual Set Screw Locking: Provides a vice-like grip on the axle, eliminating lateral shifting during aggressive driving.
• Low-Friction Metal Shields: Keeps contaminants out while minimizing the drag associated with heavy rubber seals.
• Regreasable Port: Features a built-in lubrication hole for easy maintenance and extended bearing life.
• High-Load Capacity: Engineered to withstand the severe radial forces generated by modern sticky racing tires.
• Vibration Dampening: Tight internal clearances reduce high-speed axle chatter for a smoother, more predictable ride.

Stop giving away free horsepower to driveline drag. Install the UC205-16K and ensure every ounce of power reaches the rear wheels.