Eastern Motorcycle Parts Crankcase Main Bearings – Timken USA‑Made Sprocket Shaft Bearing Kit | Fits Harley Big Twin 1969–2002 / 1 in stock, 10% off

OVERVIEW

This specialized bearing kit provides the correct replacement for worn or failing crankcase main and sprocket shaft bearings on legacy Big Twin platforms. Manufactured in the USA to precise thermal and dimensional tolerances, the assembly delivers lasting rotational stability and reduced internal friction during heavy operation. Built specifically for vintage Harley-Davidson touring and softail frames, these Timken roller bearings equal or exceed original factory specifications while resisting accelerated wear.

ENGINEERING & PERFORMANCE

The precision-ground raceways and hardened roller elements handle sustained torque loads and heat cycling typical of long-distance V-Twin riding. As a direct dimensional replacement, the units drop straight into existing crankcase housings without machining or custom fitting. The USA-manufactured Timken specification guarantees consistent internal clearances, preventing premature seizure while extending service intervals between scheduled rebuilds.

KEY FEATURES

• Premium Timken roller bearing assembly
• OE-spec dimensional tolerances for direct bolt-on installation
• Meets or exceeds original manufacturer load ratings
• Made in the USA with strict quality control protocols
• Precision-engineered specifically for Harley Big Twin crankcases
• Durable construction designed for long-term reliability
• Complete kit supplies primary drive and sprocket shaft bearings
• Trusted standard among professional V-Twin engine builders

TECHNICAL SPECIFICATIONS

• Brand: Eastern Motorcycle Parts
• Part Name: Crankcase Main Bearings (Sprocket Shaft Bearing Kit)
• Part Type: Driveline / Engine Hardware
• Material: Precision Tempered Steel Roller Bearings
• Supported Years: 1969–2002
• Compatible Trims: Touring, Softail
• Reference Numbers: 0924-0108 / A-9028

FITMENT

• Harley Touring (1969–2002)
• Harley Softail (1986–2002)

WHY HARLEY RIDERS CHOOSE THIS

Vintage Big Twin owners reject inferior imported replacements that fail under real-world vibration and torque loads, making this USA-assembled Timken kit their go-to rebuild component. The exact factory cross-sections eliminate guesswork during reassembly, ensuring proper timing chain tension and sprocket alignment out of the box. Riders and mechanics alike value the proven load-carrying capacity of tempered American steel, which protects transmission longevity across decades of street or cruising use.