Needle Bearing 40x45x27

The Needle Bearing 40x45x27 from BERT TRANSMISSIONS is a precision roller bearing engineered for high-performance manual transmission applications, specifically designed for Bert Second Generation transmissions. This component serves as a critical input shaft bearing, handling radial loads and rotational speeds that stock bearings simply cannot sustain in modified or racing vehicles. For mechanics and enthusiasts pushing their transmissions beyond factory limits, this needle bearing is essential to maintaining reliability and longevity under extreme conditions.

Needle bearings excel at load distribution through their cylindrical roller design, allowing them to fit into confined spaces while supporting significant radial forces—a critical advantage in tight transmission housings where space is at a premium. The 40mm bore, 45mm outer diameter, and 27mm width optimize load capacity while maintaining the lightweight characteristics demanded by performance transmissions. This specific geometry minimizes friction and heat generation, allowing your transmission to handle increased torque from modified engines without premature bearing wear or catastrophic failure. The bearing's precision manufacturing ensures concentricity and smooth operation across the full RPM range of high-horsepower applications.

This needle bearing is ideal for builders, shop mechanics, and serious enthusiasts rebuilding Bert Second Generation transmissions destined for street, strip, or circuit duty. Whether you're upgrading a drag racing application, restoring a high-mileage transmission, or assembling a full-race gearbox, proper bearing selection directly impacts shift quality, power delivery, and overall drivetrain reliability. Installation requires standard transmission rebuilding expertise and proper alignment tools to ensure the bearing seats correctly on the input shaft. Verify compatibility with your specific Bert transmission generation before ordering, as bearing specifications vary across product lines.