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New at The Gear Works

Rebuilding a 40,000 LB. Main Propulsion Gearbox

Gear On Phauter 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.

The first photo shows the Low Speed Bull Gear being precision ground on a Gleason-Pfauter P1600G Gear Grinder.

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

Gearbox In Assembly Assembling the low speed gear into the lower housing
Gearbox On Truck

This rebuild program has succeeded in extending the gearbox service life, reducing transmission noise and yielding the State of Washington substantial savings over the cost of procuring new replacement drives.


When Quality is the issue,
The Gear Works is the choice!



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The Gear Works 500 S. Portland St. Seattle WA 98108
Phone-206-762-3333 Fax-206-762-3704
Emergency service is available 24 hours.
Copyright ©2004 The Gear Works
Last Update:11/29/2004