Antal Mekton Sheave for OPF Block 50 mm
A genuine Antal replacement sheave for the OPF (One-Piece Frame) block range. The 50 mm Mekton (fibre-reinforced resin) sheave runs on side Delrin® ball bearings with a composite fibre radial bearing and a ground stainless-steel hub, delivering smooth, low-friction performance without lubrication. A quick, lightweight refresh for OPF singles, doubles and pad-eye blocks on cruising and performance yachts.
Why it’s a smart upgrade
- Low friction in a compact package thanks to Delrin® side balls and composite radial bearing
- Light, tough Mekton resin sheave with stainless hub for long service life
- Drop-in fit for OPF bodies to restore like-new efficiency
Key specifications
- Sheave Ø: 50 mm
- Max rope Ø: 10 mm
- Safe Working Load (SWL): 600 kg
- Thickness (T): 14 mm
- Axle/bore Ø (D3): 8 mm
- Hub Ø (D2): 12 mm
- Sheave material: Mekton (resin)
- Bearings: Composite fibre (radial) + Delrin® balls (side)
- Supplied with: Stainless-steel hub
- Weight: ~30 g
Typical applications
- Refurbishing Antal OPF 50 mm single/double blocks and pad-eye variants
- Compact turning points for vangs, travellers and mast-base organisers (within stated SWL)
Fit & compatibility notes
- Confirm your block’s sheave Ø (50 mm), axle/bore Ø (8 mm) and thickness (14 mm) before ordering
- Designed for rope up to 10 mm; not suitable for wire or rod
Your Dynamic Snippet will be displayed here...
This message is displayed because youy did not provide both a filter and a template to use.
Specifications
| Width (mm) | 14 |
| Recommended line - Max Ø (mm) | 10 |
| Inside Ø (mm) | 8 |
| Material | Resin |
| Sheave Ø (mm) | 50 |
| SWL (kg) | 600 |
| Weight (g) | 30 |
To install this Web App in your iPhone/iPad press
and then Add to Home Screen.
