Designed as a direct upgrade for the Harley-Davidson 8967A bearing, the transmission mainshaft bearing supports smooth, consistent operation in 6-speed Big Twin applications. Built with a durable deep-groove design, it helps maintain proper shaft alignment, promotes precise gear engagement, and reduces wear over time. Ideal for street and performance builds, it delivers dependable strength and long-term reliability where it matters most.
- Direct OEM replacement for 8967A
- Includes one (1) Main Drive bearing
- Installation should be performed by a certified technician, referencing the H-D Factory Service Manual
- Quicker elapsed times and higher MPHs
- Ceramic bearings offer 40% less friction than steel
- Reduced friction improves fuel economy and increases horsepower
- 60% less rotating weight
- Low tension, maintenance-free dust seals
- Mobil® Polyrex® lightweight aerospace grease
- Bearing life 3 to 5 times longer than steel
- Lower vibration levels
- Cooler running
- No extra maintenance required
- 2-year warranty
- 100% hand assembled in the USA to exacting specifications
- Why Choose Worldwide Bearings? - Read More
- Worldwide Bearings Ceramic Ball Torture Testing (Video)
Worldwide Hybrid Ceramic Bearings
Speed starts with efficiency. Worldwide Hybrid Ceramic Bearings reduce friction and rotating mass where it matters most—delivering smoother operation, cooler running temperatures, and longer service life than traditional steel bearings. Built with SAE 52100 high-carbon chromium steel races and Grade 5 Silicon Nitride ceramic balls, they’re designed for serious street riders and proven performance builds alike. Finished with low-friction removable seals and backed by a 2-year warranty, these bearings are engineered to win.
