John Deere® Compatible Primary Driveshaft Centre Bearing

Maintain balanced and smooth driveline operation with this premium aftermarket primary driveshaft centre bearing. Specifically engineered for John Deere® STS and S-Series combine harvesters, this high-performance bearing is the professional solution for repairing worn components along the main countershaft universal drive layout.

Manufactured to strict OEM specifications, this center bearing provides a high-quality support foundation for the multi-piece primary driveshaft. By ensuring a precision alignment, it eliminates catastrophic universal joint whip and prevents harsh vibration from transferring into adjacent gearboxes. This strategic refurbishment component keeps your main mechanical drive systems in top condition, securing a reliable and significantly longer service life under full engine load.

John Deere® OEM Cross-Reference

Replaces OEM Part Numbers: AH229100, AH163002

Technical Specifications & Features

• Quality Grade: Premium OEM-quality aftermarket replacement part.
• Fitment Type: Direct-fit configuration for seamless installation.
• Sealing: High-integrity agricultural seals to exclude dust, fine chaff, and moisture.
• Application: Support center bearing for the primary countershaft universal drive setup.
• Refurbishment value: Engineered to repair worn components and prevent costly structural shaft failure.
• Dispatch: Available for fast Australia-wide shipping from Collier & Miller.

Expert Maintenance Review

The primary countershaft drive assembly transfers the bulk of the combine engine's power to the threshing, separation, and discharge modules. Because it operates continuously under intense load, the center hanger bearing is highly susceptible to heat generation and premature rubber fatigue. Left unchecked, a dry or locking bearing induces severe orbital run-out, which accelerates spline abrasion and destroys expensive universal joints. We recommend checking the rubber cushion for cracks and the inner core for play during every annual preventative maintenance window.

Upgrading to this high-performance center bearing is a smart choice to save money on major mechanical drivetrain overhauls. Replacing a failing bearing at the first sign of a high-pitched squeal prevents the driveshaft from spinning loose and tearing through surrounding hydraulic lines, keeping your complete machine assembly in top condition.