Ronstan Orbit Series 30 Single Block w/ Swivel Shackle Head & Self-Lubricating Nylatron SheaveLightweight
Highest working load in its class
Secure, versatile and secure attachment
Low profile and compact
Ultra low profile thru-sheave becket
Self-lubricating Nylatron® sheave and full contact bearing for high dynamic loads
Sheave Ø - 1 3/16 in.
Max. Rope Ø - 5/16 in.
Max. Cable Ø - in
Pin Ø - in.
M.W.L. - 661 lb.
B. L. - 1323 lb.
Weight - 1.1 oz.
Mainsheet systems and spinnaker sheets on dinghies to 5m (16ft)
Halyard, vang and backstay applications on boats to 5m (16ft)
Control line applications on larger yachts
Sheave: High compression strength carbon black Acetal
Ball Bearings: High compression strength Acetal
Frame/Cheeks: Toughened, glass fiber reinforced Nylon
Link: UV stabilized, multi-strand impregnated SK75 Dyneema®