{"product_id":"ronstan-series-30-ball-bearing-stand-up-orbit-block","title":"Ronstan Series 30 Ball Bearing Stand-Up Orbit Block","description":"\u003cp\u003eThe Ronstan Series 30 Ball Bearing Stand-Up Orbit Block™ is a single sheave stand-up block with a non-swivel head, requiring 2 x 5mm (3\/16\") fasteners. Engineered for the highest strength-to-weight ratio in its class, the block uses all-composite reinforced polymer materials to eliminate heavy steel components without compromising performance. The precision 2-stage ball bearing system delivers consistent low friction across the full working load range, while the ultra low profile thru-sheave becket keeps bulk to a minimum. Versatile attachment options include lashing, Dyneema® Links, and shackles to suit a wide range of rigging setups.\u003c\/p\u003e\u003cbr\u003e\u003cstrong\u003eType of Block:\u003c\/strong\u003e Stand-Up\u003cbr\u003e\u003cstrong\u003eSheave Diameter:\u003c\/strong\u003e 30mm\u003cbr\u003e\u003cstrong\u003eBreaking Load:\u003c\/strong\u003e 500kg\u003cbr\u003e\u003cstrong\u003eMaximum Working Load:\u003c\/strong\u003e 250kg\u003cbr\u003e\u003cstrong\u003eMaximum Rope Diameter:\u003c\/strong\u003e 8mm\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 36g\u003cbr\u003e\u003cstrong\u003eRecommended Fasteners:\u003c\/strong\u003e 2 x 5mm (3\/16\") countersunk head screws\u003cbr\u003e\u003cstrong\u003eSheave:\u003c\/strong\u003e High compression strength carbon black Acetal\u003cbr\u003e\u003cstrong\u003eBall Bearings:\u003c\/strong\u003e High compression strength Acetal\u003cbr\u003e\u003cstrong\u003eFrame\/Cheeks:\u003c\/strong\u003e Toughened, glass fibre reinforced Nylon\u003cbr\u003e\u003cstrong\u003eLink:\u003c\/strong\u003e UV stabilised\u003cbr\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e 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\u003cbr\u003e\u003cbr\u003eItem Code. RF35141","brand":"Boat Harbour Marine","offers":[{"title":"Default Title","offer_id":48559613739240,"sku":"9316800415038","price":33.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/9065\/8280\/files\/9316800415038_1.jpg?v=1778803975","url":"https:\/\/boatharbourmarine.com.au\/products\/ronstan-series-30-ball-bearing-stand-up-orbit-block","provider":"Boat Harbour Marine","version":"1.0","type":"link"}