Ronstan's Series 30 Ball Bearing Orbit Blocks boast the highest strength-to-weight ratios on the market. They are made almost entirely of high-tech, composite, polymer materials.
Ronstan's two-stage bearing system features high-compression grade Acetal ball bearings and a secondary full contact bearing, which results in minimum friction.
Use these blocks in mainsheet and spinnaker sheet, halyard, vang, and backstay systems on dinghies and for control line applications on larger boats.
This Series 30 Ball Bearing Orbit Block has a swivel head and attaches with a shackle rather than a Link.
|Breaking Load (lbs)||1323|
|Breaking Load (kg)||600|
|Max Line Size (in)||5/16|
|Max Line Size (mm)||8|
|Safe Working Load (lbs)||661|
|Safe Working Load (kg)||300|
|Sheave Diameter (in)||1 3/16|
|Sheave Diameter (mm)||30|