Perfectly polished A316 stainless steel blocks in a traditional design that makes them especially suited for classic boats.
The sheave is in composite material (aluminum in the large blocks), and runs on a composite bearing with stainless steel hub (see drawing above). This means that the bearing has low friction, can handle high loads and should not be lubricated.
The self-captive delrin side ball bearing reduces friction, making it easy to disassemble, clean and maintain.
| Size | SWL | Ø max line | Ø hole for shackle* | Max load cam cleat |
| Ø65mm | 800 kg | Ø12mm | Ø6mm | 160 kg |
| Ø75mm | 1500 kg | Ø14mm | Ø8mm | 160 kg |
| Ø90mm | 2500 kg | Ø16mm | Ø10mm | |
| Ø120mm | 4500 kg | Ø18mm | Ø12mm | |
| Ø150mm | 6500 kg | Ø20mm | Ø14mm | |
| Ø180mm | 9000 kg | Ø24mm | Ø16mm |
*Shackle is not included.