Reduce weight and bulk with Ronstan's Series 40 Ball Bearing Orbit Blocks.
Ronstan's two-stage bearing system features high-compression grade Acetal ball bearings and a secondary full-contact Nylatron sheave and full contact bearing for dynamic loads, which results in minimum friction.
Use these blocks in mainsheet systems on dinghies; mainsheet fine tune systems on sportboats and small keel boats; spinnaker and jib sheets on dinghies; and control line applications on larger yachts.
This single ratchet block provides up to 14:1 holding power and a manual ON/OFF ratchet switch. It has a 360ﾰ-swiveling, stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
This block requires a RF615, a standard Dee shackle with a slotted pin of 5/32 in diameter.
|Breaking Load (lbs)||1100|
|Breaking Load (kg)||500|
|Max Line Size (in)||5/16|
|Max Line Size (mm)||9|
|Safe Working Load (lbs)||385|
|Safe Working Load (kg)||175|
|Sheave Diameter (in)||1 9/16|
|Sheave Diameter (mm)||40|