Boat Trailer Black Rubber Roller Keel Cotton Reel 3″ Long 60mm Wide 17mm Bore (SKU: CRBK75X17)

Introducing the compact force behind smooth boat loading: the CRBK75X17 – 3” Cotton Reel Rubber Keel Roller. Built tough with 85 DURO hardness black rubber, this roller is engineered to absorb shock while guiding your hull during launch or retrieval.

Its cotton reel design offers focused keel support with minimal surface contact. At just 78mm long and 60mm wide, this small but mighty roller is perfect for narrow keel setups or trailers with tighter frame spacing.

With a 17mm bore, it’s suited for standard 16mm spindles, and intentionally has a loose fit to allow smooth spinning directly on the shaft — ideal for friction-reduction in wet conditions.

Whether you’re upgrading a tired roller or building a custom trailer setup, this rugged roller delivers high performance in a small package.

Frequently Asked Questions

• Will it fit my 16mm spindle?
  Yes – it’s designed with a 17mm bore to allow easy spinning on 16mm shafts.
• What does “cotton reel” mean?
  It refers to the roller’s shape – narrow in the center, wide on the edges – which helps guide the boat into position.
• Can I use this on a fibreglass boat?
  Yes, but note the rubber is quite firm (85 duro), so be gentle if your hull is painted.
• Does it come with hardware?
  No, this listing includes the roller only. Brackets and spindle sold separately.

Is This Roller for You?

Recommended For:

• Small to medium trailers with narrow keel beds
• Users needing rigid support and friction-reducing spin on shaft
• DIYers looking to fine-tune roller spacing

Not Ideal For:

• Heavier boats needing full-length keel contact
• Owners who prefer soft poly rollers for painted surfaces

Quick Install Tips:

1. Slide the roller onto your 16mm shaft.
2. Check for free rotation – slight play is expected.
3. Add a washer or retaining pin on each side to secure.