Cosworth YB Flywheel Spigot Bearing

Cosworth YB spigot bearing designed to support the gearbox input shaft and ensure smooth clutch and transmission operation.

The flywheel spigot bearing, also known as a pilot bearing, fits into the rear of the crankshaft or flywheel and supports the tip of the gearbox input shaft. Its primary function is to maintain correct shaft alignment and allow smooth rotation between the engine and gearbox.

A worn or damaged spigot bearing can cause noise, vibration, difficult gear engagement, and premature wear of clutch and gearbox components. Replacing the spigot bearing during clutch servicing or gearbox removal helps prevent these problems and restores smooth operation.

This Cosworth YB flywheel spigot bearing is manufactured to high-quality standards and provides reliable performance under both road and performance driving conditions. The bearing delivers smooth rotation, low friction, and strong radial support.

Installation is straightforward and requires no modification. The bearing presses directly into the flywheel or crankshaft and accepts the factory gearbox input shaft. It is suitable for road cars, track cars, rally builds, and performance conversions using the Cosworth YB engine.

Benefits of replacing the spigot bearing include reduced drivetrain noise, smoother gear changes, improved clutch engagement, and increased gearbox longevity. It is a small component that plays a major role in drivetrain reliability.

This bearing is strongly recommended whenever the clutch is replaced or the gearbox is removed, as access is simple at that stage and helps avoid future labour costs.

For related drivetrain service parts, browse our transmission components category.

For technical information about spigot and pilot bearings, see:
https://en.wikipedia.org/wiki/Pilot_bearing

Choosing this Cosworth YB spigot bearing ensures correct gearbox input shaft support and dependable drivetrain performance.

✅ Key Features

• Direct replacement flywheel spigot bearing

• Suitable for Cosworth YB engines

• Supports gearbox input shaft

• Smooth rotation and low friction

• Long service life

• Simple installation