At Specialty Gear Drives, we specialize in the emergency repair, rebuild, and in-house manufacturing of Westech gearboxes across all product lines — including Speedmaster, Torqmaster, Seamaster, Straitline, Pumpmaster, and Millmaster series. Our Timken-certified technicians restore your Westech unit to better-than-OEM condition with the fastest turnaround in the industry.
All Fields Must Be Filled Out
Westech's S, D, DT, VS, OD, and ODT series Speedmaster reducers — precision parallel-shaft drives engineered for high-speed, high-torque industrial applications across mining, steel, and processing sectors.
Right-angle reducers including 2100, 9000, and 20000 series — used in ore conveyors, outdoor antenna drives, vertical aerators, steel mill pinion stands, and manned centrifuge test platforms.
Westech marine and pump-duty gearboxes engineered for continuous-duty offshore, maritime, and wastewater processing applications where reliability under load is non-negotiable.
Mill-duty and inline reducer product lines built for the pulp & paper, metals, and heavy material processing industries. All series fully supported including legacy and discontinued configurations.
When Every Hour of Downtime Costs You
Westech gearboxes — formerly produced by Western Gear Corporation and now carried forward under the Philadelphia Gear and Timken family of brands — represent some of the most robust industrial drive engineering ever built. Their Speedmaster, Torqmaster, and Seamaster product lines power some of the world’s most demanding applications: mining conveyors, steel mill drives, offshore operations, vertical aerators, and maritime propulsion systems.
When a Westech gearbox goes down, the cascade effect on production is immediate. Specialty Gear Drives provides the fastest certified repair path for any Westech unit — with full in-house gear manufacturing capability to produce exact OEM-specification replacements for gears, shafts, and precision components, including legacy series no longer available through standard supply channels.
When a Westech gear or precision component is beyond repair, we produce a new one on-site — matching OEM Rockwell and Brinell hardness ratings across all profiles, series, and reduction configurations, including legacy and discontinued product lines.
Westech’s heavy-duty industrial drives are built for longevity — but continuous operation in extreme environments eventually demands expert intervention. Our diagnostics team identifies the root cause before any repair work begins.
Westech Speedmaster and Torqmaster units rely on precision helical gear sets rated for high continuous torque. Surface fatigue, pitting, and tooth spalling under sustained overload require full gear set replacement — manufactured on-site to exact OEM hardness and profile specifications.
Westech gearboxes use high-capacity roller and thrust bearings throughout their multi-reduction stages. When bearings fail under shock loading or lubricant starvation, cascading damage occurs rapidly. We replace all bearings with Timken-certified equivalents installed via liquid nitrogen thermal process.
Input and output shaft seals in Westech drives degrade under sustained heat and operational vibration — allowing lubricant loss and contaminant ingress that accelerates internal wear across all gear stages. All seals and gaskets are replaced as standard in every Westech rebuild.
High-torque shock loads in conveyor, steel mill, and offshore applications cause fretting corrosion, keyway deterioration, and surface wear on Westech input and output shafts. Components beyond reconditioning are manufactured new to OEM dimensional and hardness specifications.
Bearing migration under high radial loading causes bore wear in Westech cast housings — triggering misalignment that accelerates gear and bearing deterioration across the entire drive. Precision line-boring restores all critical housing diameters to factory specification.
Failed or misaligned couplings transmit damaging shock and vibration into Westech gearbox internals. We diagnose and repair coupling damage alongside the gearbox rebuild — addressing all drivetrain contributing factors in a single repair cycle.
Westech drives in continuous mining and steel mill service encounter thermal overload when lubrication degrades or cooling is inadequate. We restore heat-damaged components and apply a high-temp polymer housing coating to reduce thermal buildup in future operation.
Unusual vibration or noise in a Westech unit signals worn gears, failing bearings, or structural looseness — all of which worsen rapidly under continued operation. Our full diagnostic teardown identifies every contributing factor before reassembly and load testing begins.
Every Westech gearbox receives our complete six-step rebuild process — including specialized procedures for multi-reduction Speedmaster drives, right-angle Torqmaster units, and marine Seamaster assemblies across all series and configurations.
We arrange no-cost nationwide freight pickup. Your Westech gearbox arrives and is immediately logged, assigned to a certified technician, and disassembly begins the same day — no wait queue, no delays.
All components — helical gear sets, shafts, pinions, bearing assemblies, and housings — are cleaned in our industrial parts washer and individually measured against OEM tolerances for every Westech series we service.
We identify and document exactly why the Westech unit failed — overloading, lubricant contamination, misalignment, or fatigue — so the failure mode is corrected and doesn't repeat after the repair is complete.
Worn Westech gears, shafts, pinions, and precision components are manufactured on-site to OEM dimensional and hardness specifications — including legacy Speedmaster and Torqmaster configurations no longer available through OEM supply channels.
Reassembly uses Timken-certified bearings installed via liquid nitrogen thermal process — never pressed. All new seals, gaskets, and a high-temp polymer housing coating complete the rebuild with all preloads and contact patterns set to Westech OEM specifications.
Every rebuilt Westech gearbox runs a full six-hour load test monitoring vibration, temperature, and leak-tightness before certification under our 24-month production warranty — ensuring it returns to full industrial-duty service.
We manufacture Westech gears on-site. No OEM backorders — just precision parts cut to spec and ready in days.
Every Westech rebuild is covered from the moment it goes back into production — the strongest guarantee available.
Pickup and delivery at no cost to you, anywhere in the U.S. We handle all logistics from door to door.
A Specialty Gear Drives rebuild costs a fraction of sourcing a new Westech unit, with equal or better reliability.
Our technicians hold the same certifications required by OEM service centers — ensuring every repair meets the highest industry standards.
We maintain blueprints for every Westech model we've ever serviced — including discontinued and legacy units no longer supported by the manufacturer.
Ski lift down? Production line stopped? Our emergency team is available around the clock to accelerate your Westech repair turnaround.
Call us and our repair coordinators — experienced former field technicians— can often diagnose your Westech gearbox failure over the phone before the unit even ships.
Don’t let a failed Westech Speedmaster, Torqmaster, or Seamaster unit halt your critical industrial operation. Call Specialty Gear Drives for a free quote, free pickup, and the fastest certified repair turnaround in the industry.