Product Description
Shimano 10NXK Idle Gear D (TGT0541) | Tekota Level Wind Drive
The Shimano 10NXK Idle Gear D (TGT0541) is a specialized internal transmission gear found within the Shimano Tekota series. It is a vital link in the "Idle Gear Train," a series of three or four plastic gears that transfer rotational energy from the main drive gear to the level wind worm shaft.
Idle Gear D is specifically positioned to interface directly with the worm shaft gear. Like other gears in this train, it is precision-molded from a high-impact, self-lubricating polymer. This material choice is intentional: it ensures quiet operation and acts as a mechanical fail-safe. If the level wind line guide becomes obstructed, this gear is designed to strip its teeth to prevent permanent damage to the expensive metal main gears or the reel frame.
Product Specifications
-
Part Name: Idle Gear D
-
Shimano Part Number: 10NXK
-
Alternate Part Number: TGT0541
-
Material: Reinforced High-Density Polymer (Acetal/Nylon)
-
Function: Final drive link between the idle gear train and the level wind worm shaft.
Compatible Reel Models
The 10NXK (TGT0541) is primarily used in the first-generation and "A" series Tekota frames. It is a direct fit for:
-
Shimano Tekota: 300, 500, 600 (Standard models).
-
Shimano Tekota LC: 300LC, 500LC, 600LC (Line Counter models).
-
Shimano Tekota HGA: 500HGA, 600HGA (High Gear models).
-
Shimano Tekota LCM: 500LCM, 600LCM (Metric models).
Technical Tip: If your reel handle turns but the level wind line guide does not move, Idle Gear D is often the culprit. Because it sits at the end of the gear train, it bears the most direct stress from the level wind system. You can verify its exact mounting position on the 03TEK500 or 18TEK600HGA schematics at www.reelschematic.com.
Maintenance & Lubrication Recommendation
Since Idle Gear D is made of polymer, it requires a lubricant that provides high water resistance without causing the plastic to swell or degrade. We recommend Deuthlon Lubricants:
-
For the Gear Teeth: Apply a light coating of Deuthlon Reel Gear Grease. Its high-tack formula stays on the plastic teeth even during high-speed retrieves, providing a "cushion" that reduces gear noise and prevents premature wear.
-
For the Support Shaft: Use a drop of Deuthlon Power Cast Oil on the post or shaft where the gear spins. This ultra-thin oil ensures the gear rotates with minimal friction, which is essential for maintaining the reel's "Shimano Smooth" feel.
Why Choose Genuine Shimano 10NXK?
-
Timed Precision: The tooth count and pitch are engineered to sync perfectly with the Worm Shaft (TGT0538), ensuring consistent line lay across the spool.
-
Engineered Failure Point: Using the OEM part ensures that the gear will fail under the correct amount of pressure, protecting your reel's more expensive internal components.
-
Chemical Stability: Unlike some 3D-printed or generic alternatives, Shimano's polymer blend is tested against various synthetic oils and cleaning agents to ensure it won't become brittle over time.
