2969 Dunbier R2133 Mackay Wobble Roller Grey 3" Plastic | Marine Trailer Part

🔧 Product Description

Dunbier Grey Plastic Wobble Roller 3 Inch – Part Number: 2969

The standard grey moulded-plastic wobble roller used across many Dunbier Rolla-Matic and Supa-Rolla trailer systems. The curved face pivots with the roller arm to follow the hull contour and provide distributed support.

⚙️ Key Features

• Standard Dunbier grey wobble roller
• Hard-wearing moulded plastic construction
• Curved hull-contact face
• Self-lubricating low-maintenance material
• Compatible with common Dunbier steel roller arms

📏 Specifications

• Approximate diameter/height: 110mm
• Approximate width: 75mm
• Centre hole: Approximately 22mm
• Nominal description: 3-inch-width wobble roller

🔄 Cross Reference & Related Parts

• Dunbier: 2969
• Mackay: R2133
• Black equivalent style: Dunbier 2969BR
• Large yellow 31mm-bore roller: Dunbier 2968
• Retaining hardware commonly uses washer and M5 split pin on steel arms

🚤 Trailer Compatibility & Application

• Suitable for Dunbier Rolla-Matic, Supa-Rolla and compatible steel-arm systems using a 22mm centre hole
• Hard plastic is commonly suited to aluminium and durable hull-contact applications

🔌 Function

Supports the hull on a pivoting roller arm and rotates as the boat moves on or off the trailer.

⚠️ Common Signs of Failure

• Roller face is cracked, worn flat or deeply scored
• Centre hole is enlarged
• Roller does not rotate freely
• Retaining washer or split pin is missing
• Hull support has become uneven

🛠️ Installation & Safety

• Use the correct washer and new split pin
• Inspect the arm shaft for wear
• Set roller arms to contact the hull evenly
• Ensure rollers do not contact chines or fittings
• Recheck adjustment with the boat fully seated

📦 Condition

• Brand new Dunbier Marine Products trailer component
• Supplied as one grey plastic wobble roller
• Supplied in original or equivalent packaging