Our stainless steel internal ring gears are precision-manufactured from high-grade corrosion-resistant steel, specifically engineered for demanding marine and boat applications. Available in ISO 1328 accuracy classes 5 to 10, these internal gear rings deliver exceptional wear resistance, high torque capacity, and stable transmission performance in saltwater environments. Customizable in size, module, and tooth profile to meet OEM specifications or replacement requirements – backed by strict quality control and reliable lead times.
Stainless Steel Internal Ring Gear
Specification
Module
2.5
Application
Boat drive gearbox
Material
EN1.4404, 316L
Heat Treatment
NA
Accuracy
ISO6
Stainless Steel Internal Gears For Marine & Boat Applications
Stainless steel internal ring gears are widely used as core transmission components in marine propulsion systems, steering mechanisms, deck cranes, anchor winches, and rudder control units. In these applications, the gears must endure continuous operation under high loads, shock vibrations, and constant exposure to moisture and saline corrosion. Our internal ring gears are designed to address these challenges by providing smooth, backlash-controlled power transfer, reducing maintenance frequency, and extending service life even in the harshest offshore conditions. Suitable for both new-build vessels and retrofit upgrades.
Production process
5-Step Production Process
Tube Forging
Turning
Internal Gear Shapping
Heat Treatment
Ring Gear Grinding
Tube Forging
When gears need high performance that needs to withstand high loads, high stress, impact loads or fatigue loads, forgings are suggested to use. Forging allows metal fibers to be continuously distributed along the gear profile, significantly improving root strength and fatigue life.
Turning
This is the process of cutting and shaping solid materials into precise parts. It uses tools like lathes, mills, and drills to remove excess material. Machining transforms a simple block of metal into a finished, functional component.
Internal Gear Shapping
Gear shaping is a gear cutting process that used cutting tool that is essentially a “master gear” reciprocates while meshing in a synchronized rolling motion with the gear blank.The cutter is usually moving up and down.
Heat Treatment
Gears need to be running with two gears or above two gears, that makes them easy to be worn-out. That’s why most types of gears need to be harden through heat treatment.
Ring Gear Grinding
Gear Grinding is the the most common high-precision method for finishing hardened gears under gleason profile. There are two methods to use an abrasive grinding wheel removes material from the tooth flanks.
Inspection
Strict Quality Inspection
Dimension Inspection
Material Testing
Heat Treatment Testing
Accuracy Inspection
Dimension Inspection
Material Testing
Heat Treatment Testing
Accuracy Inspection
Packages
Professional Packaging Safe Arrival
Customized cost-effective packages for products protection. We select multi-model solutions, combining air, sea, or land freight for the optimal balance of cost, speed, and reliability.
Inner Package
Out Package
Carton
Wooden Package
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Your Precision
Transmission Partner
Do you have drawings to be implemented, or problems to be solved? Please feel free to contact us. From initial inquiry and technical specification confirmation to production and delivery, our dedicated team will provide you with one-on-one service, ensuring that every step meets your stringent requirements for precision.
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