Precision Deep Groove Intermediate Jack Shaft Bearing & Seal Kit

Drivetrain Critical • Double-Sealed Protection • Built for SurRon Ultra Bee

Your intermediate (jack) shaft is the heart of the drivetrain transfer system — carrying motor torque directly to the rear wheel. When those bearings wear out, you’ll notice noise, vibration, chain misalignment, and premature sprocket wear.

The DirtyBike Intermediate Jack Shaft Bearing Kit is designed specifically to restore smooth, precise drivetrain performance in your SurRon Ultra Bee.

This kit includes four high-quality precision deep groove ball bearings engineered to handle continuous rotational speed and sustained torque load. Unlike standard open bearings, each unit features dual rubber seals to protect against fine dust, mud intrusion, water crossings, and debris that commonly attack the jack shaft area.

Two heavy-duty double-lip seals are included to provide an added external barrier, helping prevent contamination from entering the shaft housing and extending overall bearing life under aggressive riding conditions.

Whether you’re servicing high-hour components, upgrading during a sprocket swap, or rebuilding your drivetrain for race season, this kit delivers tighter tolerances, smoother power transfer, and long-term reliability.

Kit Includes:

• (4) Precision deep groove double-sealed intermediate shaft bearings
• (2) Heavy-duty double-lip shaft seals

Fitment:

• SurRon Ultra Bee (Intermediate / Jack Shaft)