Product Description
DAM Quick 100-551 Oscillating Gear
Restore the Heartbeat of Your Heavy-Duty Reel
Ensure the flawless line management of your big-game spinning reel with the DAM Quick 100-551 Oscillating Gear. This robust internal gear is a critical component of the oscillation system found exclusively in the DAM Quick 550. While the main gear drives the rotation of the rotor, the oscillating gear is responsible for the rhythmic up-and-down motion of the spool, ensuring line is laid evenly across the spool width.
On massive vintage reels like the Quick 550, the oscillating gear endures significant stress, especially when retrieving heavy sinkers or fighting deep-dwelling fish. If the teeth on this gear become worn, chipped, or stripped, the spool will fail to lift and lower, resulting in line piling up in one spot (hour-glassing) or a distinct "knocking" sound inside the body. Installing this genuine-specification replacement restores the smooth, consistent spool stroke required for long casts and trouble-free drag operation.
Compatible Models
This part is precision-engineered specifically for the oscillation mechanism of the largest reel in the classic "Standard" series:
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DAM Quick 550 (Standard Series - Heavy Duty)
Key Features
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Heavy-Duty Design: Engineered to withstand the high torque and load associated with surf and boat fishing.
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Precision Tooth Profile: Cut to mesh perfectly with the drive train to provide a silent, vibration-free oscillation cycle.
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Line Lay Accuracy: Directly controls the vertical stroke of the spool, preventing line digs and tangles.
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Restoration Critical: The primary fix for reels that spin but fail to move the spool vertically.
Technical Specifications & Schematics
The 100-551 Oscillating Gear is located within the main gear box and interacts with the oscillation slide/block. To see the exact assembly order and connection points, please consult the detailed PDF schematics for the Quick 550 at www.reelschematic.com.
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Installation Tip: Proper timing and lubrication are essential. When installing the new gear, ensure the housing cavity is clean and apply a generous amount of marine-grade reel grease. Check that the gear rotates freely on its post before closing the side plate.
Alternate Part Numbers
If you are searching for this item in vintage parts manuals, repair logs, or third-party databases, it may be listed under the following identifiers:
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100551
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DAM-100-551
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Oscillation Gear
