Ronstan 20mm Orbit Ball Bearing Block Lashing Head - Cheek Block

The Ronstan Series 20 S20 BB Orbit Block, Single Cheek is a compact, low-profile solution designed for fixed mounting applications where efficient line control and minimal weight are essential. Ideal for deck layouts and control systems, this cheek block provides smooth, reliable performance in a durable and space-saving design.

Featuring a 20mm ball bearing sheave, this Ronstan Orbit cheek block ensures low-friction operation for precise trimming and control. The high compression strength black Acetal sheave delivers excellent wear resistance, while the toughened nylon frame and cheeks provide long-lasting durability in demanding marine environments.

Product Name: Series 20 Ball Bearing Orbit Cheek Block
Brand: Ronstan
Unit: Each
Sector: Marine
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
Warranty: 3 Years

• Ronstan Series 20 single cheek block for fixed mounting applications
• Low-friction 20mm ball bearing sheave for smooth line handling
• Designed for rope up to 6mm diameter
• Compact and lightweight for space-saving deck layouts
• High compression strength Acetal sheave for durability
• Toughened nylon frame and cheeks for long-lasting performance
• Maximum working load of 250kg
• Breaking load of 550kg
• Ideal for control lines, deck organisers and rigging systems