Boat Trailer Galvanised Roller Bracket Spindle Shaft for 8″ Roller | 16mm Diameter (SKU: SPIND200G-16)

The SPIND200G-16 is a high-quality galvanised spindle shaft designed to fit standard 8″ (200mm) boat trailer keel rollers. With a diameter of 16mm and a total length of 223mm, it’s a perfect choice for light to mid-weight trailers looking for smooth roller rotation and corrosion resistance.

Whether you’re upgrading a rusted spindle or building a trailer from scratch, this shaft is easy to install and built to last. The 16mm size is compatible with most 8″ rollers, and the galvanised finish protects it from the tough marine environment, including salty waters and harsh UV exposure.

Common Uses:
– Fits 8″ keel rollers on boat trailers
– Ideal for replacing old, worn, or corroded spindles
– Compatible with brackets accepting 16mm shafts
– Suitable for lightweight and medium-duty trailer applications

Product Highlights:
– 16mm diameter, 223mm total length
– Rust-resistant galvanised steel construction
– Smooth rotation for guiding boats during launch & retrieval
– Lightweight: approx. 300g

Scroll the table below for full specifications →

Frequently Asked Questions

• Q: What roller size does this spindle fit?
  A: It’s made for standard 8″ (200mm) keel rollers with a 16mm bore.
• Q: Can this be used in saltwater?
  A: Absolutely. The galvanised finish provides excellent corrosion resistance.
• Q: How do I confirm if it fits my bracket?
  A: Your bracket must accept 16mm diameter shafts. Use a caliper or ruler to check.
• Q: Is it suitable for heavier trailers?
  A: It’s more ideal for light to medium trailers. For heavy-duty use, consider thicker shafts.

Is This Shaft Right for Your Trailer?

✔️ Best for:

• Boat trailers with 8″ rollers and 16mm shaft brackets
• Light-duty to medium-duty trailers
• Trailer restorations needing rust-resistant replacement parts

❌ Not suitable if:

• Your rollers require larger diameter shafts (e.g., 22mm or 25mm)
• Your trailer is designed for heavy boats needing heavy-duty spindles

Installation Tips

1. Remove existing roller and shaft (if applicable).
2. Slide your 8″ roller onto the SPIND200G-16.
3. Insert through bracket holes; secure with split pins or bolts.
4. Check that the roller spins freely and there’s no excessive play.

Compare Our Spindle Shaft Range
Tap to expand the comparison chart. Swipe right to view all columns on mobile →