Antal Mekton Sheave for OPF Block 64 mm
A genuine Antal replacement sheave for the OPF (One-Piece Frame) block range. The 64 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: 64 mm
- Max rope Ø: 16 mm
- Safe Working Load (SWL): 3,500 kg
- Thickness (T): 21 mm
- Axle/bore Ø (D3): 20 mm
- Hub Ø (D2): 25 mm
- Sheave material: Mekton (resin)
- Bearings: Composite fibre (radial) + Delrin® balls (side)
- Supplied with: Stainless-steel hub
- Weight: ~78 g
Typical applications
- Refurbishing Antal OPF 64 mm single/double blocks and pad-eye variants
- Compact turning points for mainsheets, genoa sheets, vangs and mast-base organisers (within stated SWL)
Fit & compatibility notes
- Confirm your block’s sheave Ø (64 mm), axle/bore Ø (20 mm) and thickness (21 mm) before ordering
- Designed for rope up to 16 mm; not suitable for wire or rod
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Spécifications
| Width (mm) | 21 |
| Cordage recommandé – Ø Max (mm) | 16 |
| Ø Intérieur (mm) | 20 |
| Matériau | Resin |
| Ø réas (mm) | 64 |
| Charge de travail (kg) | 3500 |
| Poids (g) | 78 |
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