AGMA Member CompanySince 1946East Walpole, MA

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Oil & Gas

Oil & Gas Equipment

Custom gears, splines, shafts, sprockets and related power transmission components for oilfield drilling, pumping, lifting, handling and processing machinery.

From high-torque drives and pump transmissions to chain-drive and right-angle systems, components are manufactured to your drawings, equipment specifications and operating requirements.

Offshore oil platform with pipeline and processing equipment
Made in America

Custom components manufactured in East Walpole, Massachusetts since 1946.

Power transmission where downtime matters

Precision gearing for oilfield & petroleum equipment

Oil and gas equipment operates through repeated load cycles, high torque, mechanical shock and demanding service conditions. The components inside it must transfer power reliably while maintaining the geometry required by mating shafts, pumps and drives.

Commercial Gear manufactures custom gears, splines, shafts and sprockets for new equipment, established production designs, maintenance requirements and difficult-to-source replacements.

A gear manufacturer behind critical equipment

Why oil & gas equipment manufacturers choose Commercial Gear

High torque, shock loading and replacement fit all shape the specification. We manufacture to the drawing so the component works inside the machine you already run.

80 Years of Gear Manufacturing

Custom gears and related components manufactured since 1946.

Made in America

Custom components manufactured in East Walpole, Massachusetts.

Broad Gear Capability

Multiple gear types, splines and sprockets from one manufacturer.

Prototype Through Production

One replacement component or prototype through repeat production.

Gear Cutting + CNC Machining

CNC turning and milling for shafts, hubs and added features.

OEM & Equipment Focus

Custom transmission components for OEMs and specialized machine builders.

Dedicated Inspection

Gear-specific inspection verifies critical characteristics.

Application Problem Solving

Help with difficult gear tolerance and performance challenges.

What we manufacture for oil & gas equipment

Custom gears, sprockets & drive components

Components for pump drives, hoisting systems and oilfield machinery, manufactured to your drawings with CNC machining and inspection.

Offshore oil rig and pipeline valves at night
Custom gears

Pump & Drive Gears

Spur, helical, bevel, worm and internal gears—including bull gears and pinions—manufactured to the tooth geometry, bore, hub and shaft arrangement of your pump, rig or drive.

Custom made sprockets in a range of diameters.
Sprockets

Oilfield Sprockets

Custom sprockets up to 36 in. diameter for chain-driven pumping, handling and auxiliary systems.

Custom cut internal and external splines.
Power-transmission components

Splines, Shafts & Machined Parts

Splined shafts, hubs and CNC-machined components for positive torque transfer.

Explore Commercial Gear

From the part you need to the process behind it.

Start with the component you need or explore the manufacturing capabilities Commercial Gear uses to machine, cut and inspect custom power-transmission parts.

Capabilities

The expertise behind your component

Explore the processes available to support custom and replacement component manufacturing.

Products

Find the right product family

Explore custom gears and related power-transmission components manufactured to customer requirements.

Related industrial markets

Explore other industries.

The same gear cutting, CNC machining and inspection capabilities support OEM and MRO projects across transportation, machinery and heavy industrial equipment.

Gearbox assemblies on an OEM production line

Original Equipment Manufacturers

Made-to-print gears and gear assemblies for OEMs who need a dependable partner in their supply chain.
Heavy construction equipment track and drive

Construction Equipment

Heavy-duty gears and sprockets for equipment that has to keep working in the field.

Mining

Rugged power-transmission gearing and sprockets for one of the most demanding operating environments there is.
Oil & gas gear manufacturing FAQ

Oil & gas gear & component FAQs.

Common questions about custom gears for drilling, pumping, handling and processing equipment.

Oil and gas machinery can use spur, helical, bevel, internal and worm gearing depending on the transmission layout. Splines, shafts, sprockets, rack-and-pinion systems and other mechanical power-transmission components may also be used throughout drilling, pumping, handling and processing equipment.

Custom gearing may be used within top drives, drawworks, mud pumps, pumping units, hydraulic power tongs, winches, hoists, pipe-handling equipment, valve actuators and other petroleum-production or processing machinery.

Commercial Gear can manufacture custom gears, pinions, shafts, splines and related transmission components to customer drawings for pumping equipment applications. The specific component and manufacturing requirements should be submitted for review.

Yes. Commercial Gear can review custom replacement requirements where drawings, specifications or suitable technical information are available. Matching tooth geometry, bore, shaft interface and other mating characteristics is important for existing equipment.

Commercial Gear manufactures the types of custom gears, shafts and splines that may be used within these drive systems. Requirements should be submitted using the component drawing and specifications for manufacturing review.

Yes. Commercial Gear manufactures custom sprockets up to 36 inches in diameter with published pitch capability from ¼ inch through 2 inches.

Commercial Gear manufactures worms and worm gears that can be specified for compact speed-reduction, positioning and actuation mechanisms, subject to the customer's component design and requirements.

Yes. Commercial Gear's quote process supports requirements ranging from a single prototype or specialized component through longer production orders.

Commercial Gear's published capacity includes spur gears up to 36 inches in diameter, internal gears up to 36 inches I.D., and several other gear families up to 16 inches in diameter. Submit the specific print to confirm manufacturability.

Yes. Customer drawings and prints are the preferred basis for quoting custom components. Commercial Gear requests drawings, tolerance requirements, material, quantity, delivery timeline and applicable secondary-process information.

Yes. Commercial Gear provides CNC machining and turning for custom power-transmission components in addition to its dedicated gear-cutting processes.

Provide the component drawing where possible, along with gear specifications, material, tolerances, quantity, secondary-process requirements, application information and required delivery timeframe.

Engineering & manufacturing insights

Related blogs & engineering insights.

Practical articles on gear inspection, replacement components and sourcing parts for heavy equipment.

Custom vs. Catalog Sprockets: A Total-Cost Analysis

Off-the-shelf sprockets ship fast but rarely fit perfectly. A detailed total-cost breakdown shows when custom fabrication pays for itself within the first maintenance cycle.
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AGMA Certification: What It Means for Your Supply Chain

Third-party quality certification is not just a badge — it changes how you qualify suppliers and write purchase orders. Here is what AGMA membership signals to procurement teams.
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How Precision Gear Cutting Reduces Downtime in Heavy Industry

Unplanned equipment failures cost manufacturers thousands per hour. Learn how tight-tolerance gear cutting extends service intervals and keeps production running.
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