Product Description
Mitchell 81083 Pivot Gear – High-Speed Planetary System Component
The Mitchell 81083 Pivot Gear (often referred to as a "Planetary Gear" or "Transfer Gear") is a specialized internal component found in Mitchell’s high-speed and premium spinning reels. In the unique Mitchell planetary drive system, the pivot gears are the intermediate links between the main drive gear and the oscillation slide.
Because the 400 and 440 series operate at higher retrieval speeds, the 81083 pivot gear is engineered with specific tooth counts and metallurgy to handle increased RPMs without generating excessive heat or noise. If your reel feels "notchy" or has a rhythmic "click" during the retrieve, it is often due to a chipped or worn tooth on this specific gear.
Product Specifications
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Part Number: 81083
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Component Type: Pivot Gear / Small Planetary Gear
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Material: High-durability bronze or hardened alloy (depending on production era)
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Function: Synchronizes main gear rotation with spool oscillation
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Origin: Genuine Mitchell Engineering (France)
Compatible Models
The 81083 is a core component for the "High-Speed" and "Match" chassis. It is a verified fit for:
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Mitchell 400 / 401 (High-Speed Standard)
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Mitchell 410 / 411 (High-Speed Deluxe)
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Mitchell 440 / 441 (Match / Otomatic High-Speed)
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Mitchell 510 (Specialized casting models)
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Mitchell 300 High-Speed Conversions (Reels upgraded with 400-series internals)
Technical Insight: Most Mitchell planetary systems utilize two pivot gears (Part #81083). When one is replaced, it is best practice to replace both simultaneously. If the gears are mismatched in wear, they will fight each other, leading to "gear bind" and accelerated wear on the main drive gear. To confirm the quantity and placement for your specific model, visit www.reelschematic.com for the PDF diagrams.
Professional Maintenance & Lubrication
The planetary gears are the most "active" parts inside the housing, spinning multiple times for every single turn of the handle. Proper lubrication here is critical to prevent the gears from "screaming" at high speeds.
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Gear Teeth: Apply Deuthlon Reel Grease to the teeth of the 81083 gears. Its specialized "Dust-Shield" properties create a high-pressure film that stays on the teeth even at high rotational speeds, ensuring a silent and smooth operation.
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Pivot Post: Apply a drop of Deuthlon Reel Oil to the central post upon which the gear sits. This reduces startup friction and ensures the gear can spin freely under the load of a fighting fish.
Why Choose Genuine Mitchell 81083?
The Mitchell 81083 pivot gear is machined to specific tolerances to ensure "timing" between the rotor rotation and the spool's vertical travel. Aftermarket or "generic" gears often have slight variations in tooth pitch that can cause the spool to stack line unevenly (coning) at the top or bottom. Using genuine parts preserves the high-speed efficiency and the long-term reliability of your Mitchell Match or 400-series reel.
