The Ronstan Series 30 Orbit Block is a compact, triple-sheave block with a becket, engineered for high-performance sailing. Designed with a focus on weight reduction and strength, this block utilizes fiber-reinforced composites to deliver an optimal strength-to-weight ratio and minimize friction.
Key Features:
- Lightweight, low-profile design
- High working load capacity suitable for demanding applications
- Sheave diameter: 30mm (1-3/16 in.)
- Maximum rope diameter: 8mm (5/16 in.)
- Maximum working load: 550kg (1,210 lbs.)
- Breaking load: 1,100kg (2,430 lbs.)
- Weight: 75g (2.6 oz.)
Materials:
- Sheave: High compression strength carbon black Acetal
- Ball bearings: High compression strength Acetal
- Frame and cheeks: Toughened, glass fiber reinforced Nylon
- Link: UV-stabilized, multi-strand impregnated SK75 Dyneema
Applications:
- Mainsheet and spinnaker sheet systems on dinghies up to 5m (16 ft.)
- Halyard, vang, and backstay applications on boats up to 5m (16 ft.)
- Control line applications on larger yachts
Product facts
- CT SKU
- CT-103699
- Model / MPN
- RF35312
- UPC / GTIN
- 9316800405008
- Package dimensions
- 2" X 2" X 4"
- Package weight
- 0.19 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
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Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
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Need help choosing?
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