Boat Trailer Black Rubber Keel Roller – 8″ Cotton Reel, 192mm Length, 75mm Diameter, 20mm Bore (SKU: CRBK200X20)
$13.31
8″ cotton reel-style keel roller with 85 Duro black rubber. Measures 192mm long and 75mm in diameter with a 20mm bore. Durable, non-marking, and ideal for heavy-duty trailer setups.
Out of stock
8″ Cotton Reel Keel Roller – Black Rubber, 85 Duro Hardness
The CRBK200X20 is an 8-inch black rubber keel roller in a classic cotton reel shape, designed to handle tougher loads with its 85 Duro hardness. With a 192mm length and 75mm diameter, this roller provides excellent support while maintaining a compact profile.
Its 20mm bore suits 20mm shafts, but can also accommodate 19mm shafts with a slightly loose fit – designed so the roller turns directly on the shaft. It’s ideal for boat trailers carrying larger or heavier boats where additional stiffness and stability are needed.
Made from high-quality, non-marking marine-grade black rubber, this roller is built to last in sun, saltwater, and frequent use environments.
Product Specifications
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Item | Details |
---|---|
Model | CRBK200X20 |
Type | Cotton Reel |
Length | 192mm (8″) |
Diameter | 75mm |
Bore Size | 20mm (Loose fit for 19mm shaft) |
Hardness | 85 Duro |
Material | Black Rubber – Non-marking |
Weight | 0.57kg |
Perfect For:
- Heavier fibreglass or aluminium boats
- 20mm or 19mm spindle setups
- Users needing extra hull support and durability
- Trailers exposed to frequent launches in harsh conditions
Solid grip, clean rolls – this cotton reel means business.
Related
Frequently Asked Questions (FAQ)
- Q: Will this fit a 19mm spindle?
A: Yes, it will be a loose fit but designed to rotate on the shaft itself. - Q: Is this roller suitable for aluminium boats?
A: Yes, it can be used for both fibreglass and aluminium hulls – just ensure your keel is compatible with the roller profile. - Q: What does 85 Duro mean?
A: It refers to the hardness of the rubber – 85 Duro is firm and ideal for heavy-duty support without deforming under pressure. - Q: Does this roller come with a bracket or shaft?
A: No, this listing is for the roller only. Brackets and shafts are sold separately.
Weight | 1.4 kg |
---|---|
Dimensions | 20 × 8 × 8 cm |
Location | A-2-8 |
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Usage Guide
To install your CRBK200X20 cotton reel roller:
- Insert it onto a 20mm shaft (or 19mm with a loose fit).
- Mount securely between trailer brackets using washers or end caps as needed.
- Ensure roller is centred under keel for even contact.
- Rinse with fresh water after saltwater use to extend roller life.
Evaluation & Recommendation
This roller is ideal for those needing high support and impact resistance – not just your average boat owner. It’s made to take a beating and still roll smooth.
✅ Recommended If You:
- Have a heavy-duty boat setup needing firmer keel contact
- Use a 20mm or 19mm shaft
- Want maximum durability in rubber rollers
- Operate in rough or salt-heavy marine environments
❌ Not Ideal If You:
- Are working with lightweight boats that need softer contact
- Have a trailer designed for narrow or flexible rollers
- Need a full roller kit with brackets and shafts included
Tough, compact, and rubber-built like a tank – perfect for when softies just won’t cut it.
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🔳 Parallel Keel Rollers
Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
---|---|---|---|---|---|---|---|---|
12″ Parallel 26mm | 298mm | 75mm | 26mm | Black Rubber | 85 Duro | Large boats | Heavy-duty load support | View |
12″ Parallel 18mm | 298mm | 75mm | 18mm | Black Rubber | 85 Duro | Medium trailers | Balanced support | View |
8″ Parallel 26mm | 204mm | 75mm | 26mm | Black Rubber | 85 Duro | Mid-size trailers | Non-marking, stable | View |
8″ Parallel 20mm | 204mm | 75mm | 20mm | Black Rubber | 85 Duro | General trailer | UV stable, easy install | View |
8″ Parallel 17mm | 204mm | 75mm | 17mm | Black Rubber | 85 Duro | Fibreglass boats | Non-marking, UV-proof | View |
🐾 Dog Bone Rollers
Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
---|---|---|---|---|---|---|---|---|
12″ Dog Bone 26mm | 297mm | 82mm | 26mm | Black Rubber | 85 Duro | Large hulls | Centres boat naturally | View |
8″ Dog Bone 16mm | 200mm | 70mm | 16mm | Black Rubber | – | Light trailers | Compact & tapered | View |
🍬 Cotton Reel / Round Type
Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
---|---|---|---|---|---|---|---|---|
8″ Cotton Reel 20mm | 192mm | 75mm | 20mm | Black Rubber | 85 Duro | General trailer | Firm grip, compact | View |
2.5″ Round Cap 17mm | 78mm | – | 17mm | Black Rubber | 85 Duro | End bumpers | Lightweight edge guard | View |
🪒 Vee & Bow Rollers
Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
---|---|---|---|---|---|---|---|---|
8″ Vee Roller 19.5mm | 198mm | 68mm | 19.5mm | Black Rubber | 85 Duro | Hull centering | Natural alignment | View |
4″ Jet Ski Bow 14mm | 100mm | 70/55mm | 14mm | Black Rubber | 85 Duro | Jet Ski | Small bow cradle | View |
🌟 Special Materials (PVC / Short Sizes)
Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
---|---|---|---|---|---|---|---|---|
KNOTT PVC Roller | 298mm | 95/61mm | 17mm | PVC + Aluminium core | – | Non-marking pro | Perfect for white hulls | View |
Short Rubber 102mm | 102mm | 59.5mm | 16.5mm | Black Rubber | – | Mini trailers | Non-marking & compact | View |