1302 Dunbier Knott Bottom Gear | Marine Trailer Part

🔧 Product Description

Dunbier Knott Jockey-Wheel Lower Bevel Gear – Part Number: 1302

An individual lower bevel gear for compatible Knott side-wind jockey wheels. It meshes with the upper handle gear and transfers rotation into the vertical screw that extends or retracts the jockey wheel.

⚙️ Key Features

• Replacement lower bevel gear
• Matches the Knott handle-gear tooth profile
• Drives the vertical lifting screw
• Individual repair component
• Suitable for rebuilding a serviceable gearbox

📏 Specifications

• Component position: Lower gear on lifting-screw axis
• Exact bore, tooth count and engagement must match the original
• Use with the compatible upper gear and retaining hardware

🔄 Cross Reference & Related Parts

• Dunbier: 1302
• Matching handle gear: Dunbier 1301
• Complete gears and pins kit: Dunbier 1280
• Top-hat retaining plate: Dunbier 1008

🚤 Trailer Compatibility & Application

• Suitable for selected Knott side-wind jockey-wheel gearboxes
• Not universal across all Knott model generations
• Check the screw shaft and thrust surfaces for damage

🔌 Function

Receives rotation from the handle gear and turns the lifting screw to raise or lower the drawbar.

⚠️ Common Signs of Failure

• Teeth are chipped or worn
• Screw does not rotate despite handle movement
• Gear slips under drawbar load
• Bore is loose on the screw shaft
• Rust or contaminated grease causes binding

🛠️ Installation & Safety

• Support and unload the trailer before repair
• Install as a matched pair where both gears show wear
• Fit all thrust washers and retainers in their original positions
• Lubricate before closing the gearbox
• Verify smooth full-range operation before loading

📦 Condition

• Brand new Dunbier Marine Products trailer component
• Supplied as one Knott lower bevel gear
• Supplied in original or equivalent packaging