Description
Overview
The Dog Bone Bow Roller is a solid, hard-wearing black rubber roller designed to cradle and guide the bow during launch and retrieval. With an overall length of 201mm and a 21mm bore, this Dog Bone Bow Roller fits common bow roller brackets and helps protect gelcoat while centring the hull. Argomarine ID 213032 is used for internal reference to this exact size.
Features
- Dog bone profile cushions the bow and assists self-centring on the trailer.
- Durable black rubber construction for grip and impact absorption.
- 201mm length with 21mm through-bore to suit standard spindles.
- Max OD 69mm, min OD 47mm to fit typical bow roller housings.
Specifications and Materials
| Type | Dog bone bow roller |
| Overall length | 201mm |
| Maximum diameter | 69mm |
| Minimum diameter | 47mm |
| Bore | 21mm (unbushed) |
| Material | Black rubber (NR/SBR type, general-purpose) |
For background on natural rubber properties (e.g., typical density and service range), see the independent materials reference at designerdata.nl.
Compatibility and Fitment
The Dog Bone Bow Roller suits trailers using a 21mm shaft and bow bracket sized for a 201mm roller. Because brackets and shafts vary by trailer brand, please check spindle diameter and side-plate clearance before ordering. When replacing existing hardware, confirm the current roller length and bore.
Compliance and Safety
Inspect rollers regularly for flat spots, cuts or hardening. Replace if the roller no longer turns freely or shows cracks. Tighten retaining hardware to the manufacturer’s torque guidance and ensure the roller spins without contacting bracket side plates.
Marine Applications
This Dog Bone Bow Roller is ideal for centre consoles, runabouts and alloy or fibreglass hulls where grip and shock absorption at the bow are required. It provides a compliant contact surface that helps guide the forefoot and reduces scuffing during winching.
Why Choose Argomarine
We specify practical trailer parts with verified dimensions and clear fitment notes. The Dog Bone Bow Roller offers reliable performance, straightforward installation and sizing that matches common Australian trailer hardware. If you need related brackets, shafts or fasteners, our team can help you select compatible parts. To browse complementary components, visit our Boat & Trailer Accessories category.
