Boat Trailer Roller Bracket Spindle Shaft for 6″ Roller | Zinc Finish 16mm (SKU: SPIND150Z)

The SPIND150Z spindle shaft is a lightweight and rust-resistant solution for 6″ (150mm) keel rollers, built with a 16mm diameter and a protective zinc-coated finish. Whether you’re upgrading a light boat trailer or building a new one, this shaft provides a balanced blend of ease-of-use and reliable function.

Its manageable size and weight (approx. 200g) make it a great fit for smaller trailers towing tinnies, jet skis, or lightweight watercraft. The smooth zinc surface offers corrosion protection and reduced friction at the roller contact points.

Ideal For:
– 6″ roller replacement or upgrades
– Small to mid-size boat trailers
– Brackets designed for 16mm shaft diameter
– Low to moderate marine exposure

Product Features:
– 16mm shaft diameter
– Suits 150mm (6″) rollers
– Zinc finish = corrosion-resistant + easy to clean
– Lightweight for simple handling and install

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Frequently Asked Questions

• Q: Can this shaft handle a 6″ roller?
  A: Yes, it’s designed specifically for 150mm (6″) keel rollers with 16mm bores.
• Q: What’s the benefit of zinc finish?
  A: Zinc protects against rust while keeping the shaft lightweight and smooth.
• Q: Can it be used in saltwater?
  A: Yes, occasional saltwater use is fine with regular rinsing.
• Q: Is this okay for DIY trailer builds?
  A: Absolutely! It’s easy to install and a great fit for most DIY brackets.

Is SPIND150Z Right for You?

✔️ Yes, if you:

• Use 6″ rollers and brackets with 16mm holes
• Want a lightweight, rust-resistant solution
• Are towing small to medium watercraft

❌ Probably not if:

• You’re using heavy boats or 8″+ rollers
• Your system requires 19mm or larger shafts

Installation Guide

1. Slide shaft into the 6″ roller bore
2. Fit ends into your trailer’s bracket holes
3. Secure with R-clips, cotter pins, or bolts
4. Spin to check smooth rotation before trailering

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