Overview — Flywheel PTO Bearing 5098000680
5098000680 is the centre (support) bearing for the flywheel power take-off drive on Isuzu engines used in Hitachi excavators. We can supply all the original and replacement part numbers listed below, in stock or available on order — welcome to enquire by part number.
Parts Characteristics
The bearing carries the PTO shaft where it leaves the flywheel housing, keeping the drive true while auxiliary equipment takes power from the engine. It is a precision steel radial ball bearing with hardened races, built for continuous rotation under the load of driven pumps and auxiliary shafts. Correct size, fit and running clearance are what keep the PTO quiet and the shaft free of vibration.
Applicable Models & Applications
Applications cover Hitachi excavators with Isuzu 6HK1/6WG1 engine families where an auxiliary PTO is driven from the flywheel end. It supports the shaft between the flywheel and the driven component, and should be matched to your original bearing by size and type before ordering.
Maintenance & Replacement
Listen for rumble, growl or radial play at the PTO during operation — these are the first signs of bearing wear. At each major service, check the shaft end float and the seal condition, and clean or replace the seal if dirt has entered. The bearing itself is a service-life part: replace it when play exceeds the engine manual tolerance or at engine overhaul, and torque the PTO housing bolts to spec in sequence. Keep the PTO shaft well aligned when refitting the driven pump so the bearing is not loaded off-axis.
Price Reference (USD)
The reference price for this Bearing (5098000680) is approximately USD 18 – 60 per unit depending on grade, quantity and shipping destination. This is a planning estimate only — confirm current pricing and availability with our sales team before ordering.
Also in the BEARING & FLYWHEEL PTO Series
8944220541.
Racer Machinery is a dedicated construction-machinery parts supplier — we keep the full BEARING & FLYWHEEL PTO series in stock and verify every number against your machine before dispatch. Send us your part number and machine model, and we will confirm fitment, price and lead time. Same-family bearing part numbers are available on request.
