Ronstan, Series 30 Ball Bearing Orbit Block™, Triple, RF35302

Description

The Ronstan Series 30 Ball Bearing Orbit Block™ offers an exceptional strength-to-weight ratio, achieved through the use of all-composite reinforced polymer materials and versatile attachment options. Its precision design incorporates the optimal number of ball bearings to minimize friction, while weight reduction is achieved with fiber-reinforced composites in the block head, cleat arms, and beckets. These blocks are the lightest in the world for their working load, thanks to the elimination of heavy steel components, replaced by high-tech polymers and fiber equivalents. The multi-sheave blocks feature single intermediate cheeks and an ultra-light head arrangement, avoiding the unnecessary weight and bulk found in other brands. The Ronstan 2-stage bearing system, with high compression grade Acetal ball bearings and a secondary full-contact bearing, ensures minimal friction across the full working load range.

Specifications

• B.L. (kg): 1100
• M.W.L. (kg): 550
• Max. Rope diameter (mm): 8
• Pin Ø (mm): 4
• Sheave diameter (mm): 30
• Type of Block: Triple
• Weight (g): 79