Product Description
Shimano 10NXF Idle Gear B (TGT0533) | Tekota Level Wind Drive
The Shimano 10NXF Idle Gear B (TGT0533) is a critical internal drive component for Shimano’s Tekota series of overhead reels. This gear is a central part of the transmission system that bridges the rotation of the main drive gear to the level wind assembly. Its primary job is to ensure that as you turn the handle, the line guide moves back and forth with perfect timing to provide even line lay across the spool.
Precision-molded from a high-density, self-lubricating polymer, Idle Gear B is designed to be the "mechanical fuse" of the level wind system. If the line guide becomes jammed by debris or a "bird's nest," this plastic gear is engineered to strip its teeth before the more expensive metal worm shaft or main gear is damaged.
Product Specifications
-
Part Name: Idle Gear B
-
Shimano Part Number: 10NXF
-
Alternate Part Number: TGT0533
-
Material: Durable High-Impact Polymer (Nylon/Acetal)
-
Function: Transfers rotational power from the drive train to the level wind worm shaft.
Compatible Reel Models
The 10NXF (TGT0533) is a standard part for the first-generation and "A" series Tekota reels. 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).
Signs of Wear: If your reel handle turns but the line guide (level wind) remains stationary, or if you feel a "clicking" or "thumping" sensation during the retrieve, Idle Gear B has likely stripped or lost a tooth. You can confirm its placement by checking the 03TEK500 or 18TEK600HGA schematics at www.reelschematic.com.
Maintenance & Lubrication Recommendation
Because this gear is made of polymer and interfaces with other plastic and metal gears, it requires specific lubrication to prevent heat friction and premature wear. We recommend Deuthlon Lubricants:
-
For the Gear Teeth: Apply a light coating of Deuthlon Reel Gear Grease. This grease is safe for all plastics and provides a "tacky" barrier that stays on the teeth during high-speed retrieves, ensuring a quiet and smooth operation.
-
For the Support Pin: Use a single drop of Deuthlon Power Cast Oil on the Idle Gear B Support (TGT0534). This ultra-thin oil allows the gear to spin with zero resistance, reducing the load on the rest of the drive train.
Why Choose Genuine Shimano 10NXF?
-
Engineered Failure Point: The specific plastic density is calibrated to protect your reel's more expensive metal internals during a jam.
-
Tooth Pitch Precision: Guaranteed to mesh perfectly with Idle Gear A (TGT0368) and Idle Gear D (TGT0541), preventing the "gear buzz" often felt with generic 3D-printed replacements.
-
Chemical Stability: Resistant to swelling or becoming brittle when exposed to common saltwater reel cleaners.

