Antal Roller Bearing Sheave OPF 70 mm
A genuine Antal replacement sheave for the OPF (One-Piece Frame) block range. The 70 mm hard-anodised aluminium wheel runs on a high-efficiency roller bearing with self-captive side balls, delivering ultra-low friction under load with minimal maintenance. A ground stainless-steel hub ensures precise alignment and long service life when refreshing well-used OPF blocks.
Why it’s a smart upgrade
- Roller bearing core for excellent efficiency at working loads
- Hard-anodised aluminium sheave with stainless hub for durability
- Direct, drop-in fit for OPF bodies to restore like-new performance
Key specifications
- Sheave Ø: 70 mm
- Max rope Ø: 12 mm
- Safe Working Load (SWL): 1,200 kg
- Thickness (T): 16 mm
- Sheave material: Aluminium
- Bearing type: Roller (+ side balls)
Typical applications
- Refurbishing Antal OPF 70 mm single/double and pad-eye variants
- High-load turning points for mainsheets, genoa sheets and cascade tackles (within stated SWL)
Fit & compatibility notes
- Confirm your block’s sheave Ø (70 mm) and thickness (16 mm) before ordering
- Designed for rope up to 12 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) | 16 |
| Recommended line - Max Ø (mm) | 12 |
| Inside Ø (mm) | 12 |
| Material | Aluminium |
| Sheave Ø (mm) | 70 |
| SWL (kg) | 1200 |
To install this Web App in your iPhone/iPad press
and then Add to Home Screen.
