Product Description
Shimano Conquest MD 400XG Ceramic Bearing Upgrade Set
Maximize Casting Distance and Smoothness
Unlock the full potential of your "Monster Drive" reel with the Shimano Conquest MD 400XG Ceramic Bearing Set. Designed specifically for the heavy-duty demands of the Conquest MD series, this 3-bearing upgrade kit replaces the stock stainless steel bearings in the most critical performance areas: the spool support and the outer pinion gear.
By upgrading to hybrid ceramic technology, you significantly reduce rolling resistance and start-up inertia. This translates to longer, more accurate casts with lighter lures and a silky-smooth retrieval feel, even under the heavy load of large swimbaits or deep-cranking resistance.
Kit Configuration
This premium upgrade set consists of 3 Hybrid Ceramic Bearings to replace the following OEM locations:
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1x Spool Bearing (Side Plate)
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1x Spool Bearing (Tension Knob/Frame)
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1x Outer Pinion Gear Bearing (X-Ship Support)
Key Features & Benefits
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Hybrid Ceramic Construction: Features precision Si3N4 (Silicon Nitride) ceramic balls housed in high-grade stainless steel races. Ceramic balls are 60% lighter than steel, allowing the spool to spin faster with less vibration.
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Corrosion Resistance: Ceramic materials are impervious to rust, making this kit an excellent choice for both freshwater and saltwater environments when paired with proper maintenance.
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Increased Casting Distance: Lower friction coefficients allow for higher max spool RPMs and extended casting range.
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Improved Startup Inertia: The lightweight nature of ceramic balls allows the spool to start spinning with less effort, improving pitching and flipping accuracy.
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Durability: Harder than steel, ceramic balls polish the stainless races during use, maintaining smoothness over a longer lifespan.
Model Compatibility
This bearing kit is precision-engineered to fit the following reel models:
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Shimano Calcutta Conquest MD 400XG
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Shimano Calcutta Conquest MD 400XGLH (Left Hand)
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Also compatible with 300XG / 301XGLH sizes sharing the same bearing architecture.
Part Number Cross-Reference
For verification, these bearings replace the standard Shimano OEM part numbers found on the reel schematic:
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Spool/Side Plate Bearings: Replaces parts equivalent to Shimano BNT 105C1, BNT 105CA, or BNT 105BP (check specific schematic for exact location codes).
Outer Pinion Bearing: Replaces the support bearing located on the pinion shaft (often listed as BNT 105BS or similar in the X-Ship assembly).
Schematic & Installation Resources
To ensure correct installation and identify the exact location of these bearings within your reel, please consult the manufacturer's schematic.
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Download your reel schematics here: www.reelschematic.com
Lubrication Recommendations
Ceramic bearings perform best with high-quality lubrication to ensure longevity and noise reduction. We highly recommend the following Deuthlon products for this installation:
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For Spool Bearings: Deuthlon Reel Oil. A low-viscosity oil that maximizes free-spool speed and casting distance. Apply one small drop per bearing.
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For Pinion & Gears: Deuthlon Reel Grease. Use this for the outer pinion bearing and gear teeth to provide a barrier against water intrusion and ensure buttery smooth cranking under load.

