Rebuilding a 40,000 LB. Main Propulsion Gearbox

Wednesday, October 7th, 2009

Low Speed Bull Gear being precision ground on a Gleason-Pfauter P1600G Gear Grinder.

Low Speed Bull Gear being precision ground on a Gleason-Pfauter P1600G Gear Grinder.

When the Washington State Ferry System needed a reliable source to overhaul their 2500 H.P. gearboxes, used on the Issaquah class ferry boats, they turned to The Gear Works for fast, dependable service.

Gearbox in Assembly

Gearbox in Assembly

After 25 years of service the propulsion drives were showing signs of wear and increasing noise.

The Scope of Work Included:

* Complete Disassembly and Cleaning
* Mag-Particle Inspection of all Rotating Elements
* Gearbox Housing Alignment Inspection
* Installation of New Bearings
* Replacement of Internal Lubrication Lines
* Clutch Repair
* Addition of New Inspection Ports
* REGRIND ALL TOOTH FLANKS TO AGMA Q-12 ACCURACY AND 16 RMS FINISH
* Reassemble and Spin Test

The Gear Works is the choice!

Gearbox On Truck
Gearbox On Truck



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