The 91312 4½" Blue Nylon Keel Roller is a durable boat trailer roller designed to support and guide the keel during launching and retrieval. Featuring a 17mm bore for compatible 16mm spindles, its hard blue polymer construction provides a strong, non-marking contact surface. Ideal for aluminium and alloy boats, the 91312 offers excellent wear resistance for marine trailer applications.
Boat Trailer Rollers - Blue
41/2" Keel Roller Blue 17mm Bore
SKU: V-91312
$10.15
Key benefits
Key Benefits
- 4½" / approximately 114–115mm wide
- 17mm / 0.669" centre bore
- Suits compatible 16mm / 5/8" spindles
- Hard-wearing blue polymer construction
- Non-marking contact surface
- Particularly suitable for aluminium and alloy boats
- Machined from solid material
- Resistant to splitting and cracking compared with conventional rubber rollers
- Suitable for boat trailer keel and centre support positions
Dimensions
- Roller Width: 114.3mm / 4½"
- Common Supplier Measurement: 114–115mm / approx. 4½"
- Bore Diameter: 17mm / 0.669" (approx. 11/16")
- Suitable Spindle: 16mm / 0.630" (approx. 5/8")
Suitable Applications
- The 91312 is suitable for compatible boat trailers, aluminium boat trailers, tinny trailers and alloy boat trailers. It is intended for keel/centre support positions where the roller helps carry and guide the hull as the boat moves on and off the trailer.
Signs the Keel Roller Needs Replacing
- Inspect or replace the roller if it develops deep grooves, cracking, splitting, flat spots, excessive centre-bore wear or sideways movement, or if it no longer rotates freely. Also inspect the spindle and bracket for corrosion, bending or wear whenever replacing a keel roller.
Shipping
Ships Australia-wide