Overview
Our 4½″ (~114 mm) Black Rubber Flat Bilge Centre Roller (Part No. 91220) is made from soft, UV-stable black rubber. The flat profile supports wide keel applications, making it ideal for both fibreglass and aluminium hull types. Designed with a 17 mm central bore, this roller is compatible with standard spindle brackets for easy installation.
Key Features
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114 mm width (4½″) — suitable for wide keel or bilge support
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17 mm bore — fits most standard trailer spindles and brackets
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Soft black rubber — shock-absorbing, non-marking, UV-resistant
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Flat profile surface — distributes hull contact evenly
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Australian stock — fast dispatch from QLD and backed by a 12‑month manufacturer warranty
Applications
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Ideal as a flat keel or bilge roller on small to medium trailers
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Compatible with fibreglass or aluminium hulls
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Easy replacement for worn or undersized rollers
Specifications
| Feature | Detail |
|---|---|
| Width | 4½″ (~114 mm) |
| Bore Size | 17 mm |
| Material | UV-stable soft black rubber |
| Profile | Flat bilge surface |
| Part Number | 91220 |
Benefits
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Soft rubber reduces friction and protects hull surfaces
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Ideal for wide contact keel setups without edge-loading
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Reliable stock availability and fast shipping across Australia from QLD
Shipping is calculated at checkout based on your location.