The Ronstan Orbit 20mm S20 BB Orbit Block, Single, Becket, Lashing is a lightweight, high-performance marine block designed for low-friction line handling where strength, compact size and minimal weight are essential. Built for demanding sailing and rigging applications, this Series 20 Ball Bearing Lashing Orbit Block is ideal for control lines and other systems where smooth, reliable running is needed.
Featuring a 20mm sheave and a secure lashing attachment, this Ronstan Orbit block is engineered for efficient performance under load while keeping overall system weight to a minimum. The high compression strength black Acetal sheave runs smoothly, while the toughened nylon frame and cheeks provide excellent durability in harsh marine environments.
Product Name: Series 20 Ball Bearing Lashing Orbit Block™
Brand: Ronstan
Unit: Each
Sheave Size: 20mm
Max Rope Size: 6mm
Maximum Working Load: 250kg
Breaking Load: 550kg
Material: Sheave: High compression strength black Acetal
Frame/Cheeks: Toughened Nylon
Sector: Marine
Warranty: 3 Years
- Compact Ronstan Orbit 20mm single block with becket and lashing attachment
- Low-friction ball bearing design for smooth, efficient line handling
- 20mm sheave suitable for rope up to 6mm
- High compression strength black Acetal sheave for reliable performance
- Toughened nylon frame and cheeks for strength and durability
- Lightweight construction ideal for performance sailing applications
- Maximum working load of 250kg
- Breaking load of 550kg
- Suitable for a wide range of marine and rigging uses






