Product Description
Shimano 10T05 Worm Shaft (BNT6023) | Curado MGL & SLX Series
The Shimano 10T05 Worm Shaft (BNT6023) is a precision-machined internal drive component found in Shimano’s modern, high-performance low-profile baitcasting reels. It serves as the core of the level wind system, utilizing a helical groove pattern to guide the line winder assembly back and forth across the spool.
This specific part is engineered for right-hand retrieve models. Because the grooves are cut to synchronize with the clockwise rotation of the handle, this shaft is not interchangeable with left-hand versions.
Product Specifications
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Part Name: Worm Shaft / Worm Gear
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Shimano Part Number: 10T05
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Alternate Part Number: BNT6023
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Material: Hardened Stainless Steel or Specialized Alloy
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Retrieve Side: Right-Hand (RH)
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Function: Drives the horizontal movement of the line guide for even line distribution.
Compatible Reel Models
The 10T05 (BNT6023) is a standard component for several popular reels in the "MGL" and "DC" families, particularly those in the 70 and 150 size classes:
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Shimano Curado MGL: K 70, K 70HG, K 70XG.
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Shimano SLX MGL: 70, 70HG, 70XG.
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Shimano SLX DC: 150, 150HG, 150XG.
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Shimano Scorpion: Select MGL and DC models (JDM).
Technical Note: If your reel is a left-hand model (e.g., SLX 151DC), you will likely require part BNT6024, which features mirrored grooves. Always confirm your reel's model number and retrieve side before installation.
Maintenance & Lubrication Recommendation
The worm shaft is highly exposed to water and debris carried in by the fishing line. To ensure the line guide travels without "stuttering," we recommend Deuthlon Lubricants:
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For the Grooves: Apply a few drops of Deuthlon Power Cast Oil. This ultra-thin, high-speed lubricant allows the shaft to spin with minimal resistance, which is critical for maximizing casting distance and achieving a smooth retrieve.
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Cleaning Tip: Use a soft-bristled brush or a cotton swab dipped in isopropyl alcohol to remove old, gritty grease from the helical tracks before applying fresh oil.
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For the Support Bushings: A tiny dab of Deuthlon Reel Gear Grease on the ends of the shaft can help prevent corrosion and reduce vibration.
Why Use Genuine Shimano 10T05?
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Perfect Line Lay: The groove pitch is factory-calibrated to the specific spool width of the 70/150 frames, preventing line from "bunching" or "digging in" at the edges.
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Structural Durability: Machined to withstand the friction of the Line Guide Pawl traveling across it thousands of times without developing "flat spots" or burrs.
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System Synchronization: Guarantees a silent mesh with the Idle Gear, maintaining the "Shimano Smooth" feel throughout the life of the reel.
