R2205 Mackay Rocka Arm Rubber Block (per Metre) (M) | Marine Trailer Part

🔧 Product Description

Mackay Rocka-Arm Rubber Mounting Block – Per Metre – Part Number: R2205

A black rubber trailer contact strip used on bunks, skids, guide surfaces or Rocka-arm supports. It provides a replaceable contact surface between the hull and trailer structure.

⚙️ Key Features

• black rubber construction
• Length: sold per metre
• Water-resistant marine trailer contact material
• Can be cut and drilled to match compatible support members
• Replaceable wear surface

📏 Specifications

• Nominal dimensions: profile matched to the Mackay Rocka-arm mount
• Overall length: sold per metre
• Current catalogue identifies this as the rubber block used with the R2289G rear Rocka mount kit

🔄 Cross Reference & Related Parts

• Mackay: R2205
• Comparable UHMWPE, acetal or low-friction bunk products must match dimensions and hull suitability

🚤 Trailer Compatibility & Application

• Use on hull materials approved for the selected contact surface
• Low-friction plastic can allow a boat to move unexpectedly when restraints are released
• Backing rails must be straight and free from protruding fasteners

🔌 Function

• Reduces friction or cushions contact between the hull and the trailer support structure.

⚠️ Common Signs of Failure

• Strip is cracked, deeply gouged or worn through
• Mounting screws protrude
• Material has lifted or shifted
• Grit is embedded in the contact surface
• Hull shows scratches or concentrated pressure marks

🛠️ Installation & Safety

• Support the boat before removing the original strip
• Countersink all fasteners below the contact surface
• Allow expansion clearance for long plastic sections
• Deburr cut ends and holes
• Use positive bow and transom restraints during transport

📦 Condition

• Brand new Mackay trailer component
• Supplied as one strip or length as specified
• Supplied in original or equivalent packaging