Multiquip 1604 Ball Thrust Bearing E5 AETNA - OEM Replacement Part

This ball thrust bearing is a critical wear component in power trowel gearbox and rotor assemblies, designed to handle axial loads during high-speed concrete finishing operations. The E5 AETNA thrust bearing maintains proper spacing and reduces friction between rotating components, preventing metal-to-metal contact that can lead to premature gearbox failure or rotor assembly damage.

In power trowel applications, thrust bearings are subject to constant axial pressure from blade engagement and must be inspected regularly during routine maintenance intervals. According to Multiquip service documentation, thrust plate bearings and bushings require regular lubrication and inspection for wear. Common failure symptoms include increased noise during operation, excessive play in the rotor shaft, or difficulty maintaining proper blade pitch. Replace this bearing if you notice scoring, pitting, or uneven wear patterns during your maintenance inspection.

This bearing is compatible with the following Multiquip trowel models:

• BHN Series
• BTO20HTCSL
• HHXD5
• HHXG5
• HRT Series
• JRT Series
• JWN24HTCSL

Genuine Multiquip OEM part, sold by an authorized dealer.