Boat Trailer Black Rubber Dog Bone Keel Roller – 12″ Long, 82mm Diameter, 26mm Bore, 85 Duro (SKU: DBBK300X26)

12-Inch Dog Bone Keel Roller – Built Tough for Bigger Boats

The DBBK300X26 is a 12-inch dog bone-style keel roller crafted from high-density black rubber at 85 Duro hardness. With a generous 297mm length and 82mm diameter, this roller provides exceptional stability and shock absorption for heavy-duty trailers and large hulls.

It features a 26mm bore, designed to fit 26mm spindles or provide a loose fit on 25mm shafts. The roller is engineered to turn directly on the shaft, offering a smooth and supportive ride even during challenging launches.

Perfect for wide hulls or heavier boats, this dog bone roller helps prevent keel damage while guiding your vessel safely during loading and unloading.

Product Specifications

Where This Roller Shines:

• Wide or heavy fibreglass/aluminium boats
• Trailers using 25–26mm shafts
• Launch ramps with rough contact points
• High UV, salty, or muddy environments

Big, strong, and built to roll – the DBBK300X26 is the roller your heavy-duty trailer deserves.

Frequently Asked Questions (FAQ)

• Q: Will this roller fit a 25mm shaft?
  A: Yes, it’s a loose fit and intended to rotate on the shaft.
• Q: What kind of boats is this roller made for?
  A: Best suited for large or wide fibreglass and aluminium boats that need extra keel support.
• Q: Is 85 Duro rubber too hard?
  A: No – it’s ideal for heavy loads and long-term durability without squashing or cracking.
• Q: Do I need to lubricate the shaft?
  A: It’s not required, but marine-grade grease may improve performance and reduce wear.

Usage Guide

To install your DBBK300X26 roller:

1. Slide onto a 26mm or 25mm shaft (loose fit by design).
2. Mount between brackets using washers or end caps as needed.
3. Align the roller under the keel to provide centered, even support.
4. Rinse after saltwater use to prevent grit buildup and prolong life.

Evaluation & Recommendation

This roller is for serious trailers doing serious work. It’s long, wide, firm, and ready for boats that don’t mess around.

If your boat is a beast, this roller is your leash. Heavy-duty, no-fuss, all-grit.

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