Output Bearing

The output bearing for BERT transmissions is a precision ball bearing engineered to support the output shaft in late-model BERT racing and performance transmission applications. This component handles radial and axial loads while maintaining low friction and smooth rotation under sustained high-RPM operation. Whether you're building a competition drag racing transmission, street performance rebuild, or high-horsepower street machine, the output bearing is a critical wear item that must be replaced during any transmission overhaul or rebuild to ensure reliability and longevity.

Manufactured to strict tolerances, this ball bearing features a 1.180-inch inner diameter and 2.833-inch outer diameter, designed specifically for BERT output shaft geometry. The bearing's compact profile (measuring 3.8 × 1.1 × 4.1 inches) allows it to fit seamlessly within the transmission case while providing adequate load capacity for aggressive acceleration and sustained power delivery. Precision ball bearings like this one distribute loads evenly across rolling elements, reducing friction losses and heat generation—critical factors in maintaining transmission efficiency and protecting synchronizers and gear sets from premature wear.

Transmission technicians and engine builders routinely specify BERT output bearings when rebuilding late-model BERT units for street or strip applications. Proper installation requires careful cleaning of the bore, appropriate press fit, and lubrication with transmission fluid to ensure the bearing seats correctly and rotates freely. Always replace the output bearing during a full transmission rebuild, as worn bearings introduce play in the output shaft, cause noise, increase gear mesh loads, and can lead to catastrophic failure under boost or high-horsepower conditions.