Boat Trailer 8″ Black Rubber Parallel Keel Roller with Galvanised Bracket & Spindle Kit – 17mm Bore (SKU: BDA090)
$66.00
Heavy-duty 8″ parallel-style black rubber keel roller with galvanised bracket and 17mm bore. 85 DURO hardness for tough support. Ideal for fibreglass boats. Includes bracket and spindle kit.
Out of stock
The BDA090 is a serious piece of trailer gear—an 8″ parallel black rubber roller built for maximum stability and direct keel support.
Designed to support heavier boats and maintain hull alignment during launch or retrieval, its flat profile distributes load evenly without side tilt.
Constructed from 85 DURO black rubber, this roller provides firm support without flexing under pressure. The 204mm length and 75mm diameter give it wide coverage and high endurance, making it perfect for heavy-duty marine use.
This kit includes a galvanised steel bracket and a spindle, with a 17mm bore designed to suit standard 16mm shafts. The hot-dip galvanised finish resists corrosion from saltwater and road grime, making it ideal for Aussie coastal conditions.
Specifications:
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| Component | Details |
|---|---|
| SKU | BDA090 |
| Roller Type | Parallel (Flat) |
| Length | 204mm (8 inch) |
| Diameter | 75mm |
| Bore Size | 17mm (fits 16mm spindle) |
| Material | Black Rubber – 85 DURO |
| Bracket | Galvanised Steel Support + Spindle |
| Boat Type | Fibreglass or heavier hulls |
If you want strength without compromise and a roller that won’t flinch under pressure, BDA090 is the weapon of choice.
Related
Frequently Asked Questions
- What makes a parallel roller different?
It has a flat profile instead of concave—ideal for stable, even contact across flat keel surfaces. - Is this for light or heavy boats?
It’s rated for heavier boats thanks to 85 DURO hardness and wide surface area. - Does it include the bracket?
Yes, this is a full kit: roller, galvanised bracket, and spindle. - Will it mark my boat?
Black rubber may leave marks—it’s ideal for fibreglass but not recommended for alloy hulls.
| Weight | 2.3 kg |
|---|---|
| Dimensions | 27 × 9 × 7 cm |
| Location | XXX |
| Manufacturer Part Number | |
| Modified Item | |
| Custom Bundle | |
| Brand | |
| Warranty |
Is This the Right Kit for You?
Recommended For:
- Fibreglass boat trailers
- Heavy-duty use requiring firm roller support
- Boats with flatter keel zones
- Users needing solid galvanised bracket + spindle included
Not Recommended For:
- Alloy boats (black rubber may mark)
- Users needing keel-centering (consider concave or dog bone rollers)
Installation Tips:
- Mount bracket to trailer keel beam securely.
- Slide roller onto 16mm spindle through 17mm bore.
- Insert washers/spacers if needed for snug fit.
- Secure ends with locking nuts or pins and check spin smoothness.

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