Barton Marine Size 7 70mm Plain-Bearing Swivel Block

The Barton Marine Size 7 70mm Plain-Bearing Swivel Block is built for sail-control systems that need a strong, compact change of line direction. Barton Marine's plain-bearing block construction uses molded sheaves and corrosion-resistant internal hardware to keep the line running smoothly under load. Through-bolted and riveted construction adds security at the side plates, while the specified swivel, becket, upright, or stand-up configuration suits the intended rigging layout. The block is sized for cruising and racing applications where dependable load handling matters more than unnecessary complexity.

The range features high-grade glass fiber nylon reinforced molded side plates with an internal 316 stainless steel frame that is through-bolted and riveted for added strength and durability. This well-designed and versatile range is engineered for use on larger cruising and racing yachts and is compatible with Barton Marine's ball-bearing mainsheet traveler system. The 70mm sheave Size 7 high load cruising block range is engineered for superior strength and performance and offers both plain and ball-bearing sheave assemblies. This well designed and versatile range is engineered for use on larger cruising and racing yachts and is compatible with Barton Marine's ball bearing mainsheet traveller system. Built with 70mm (2 13/16") sheaves and designed for a maximum rope size of 14mm - 9/16" rope.

• Plain-bearing design keeps the sheave arrangement simple
• Through-bolted construction adds strength at the side plates
• Corrosion-resistant internal hardware suits marine rigging
• Configuration is matched to the attachment style in the model name

For the Size 7 70mm Plain-Bearing Swivel Block, match the block to the rope diameter and safe working load specified for the model, and keep the lead aligned with the sheave to avoid unnecessary side load. Swivel, becket, upright, and stand-up versions each solve a different rigging problem, so the attachment style should be chosen around the intended purchase or turning point. For more blocks and line-control components, browse more Sailing Hardware.