![Barton Plain Bearing Pulley Block Back to Back Swivel Block - Size 1, 30mm [N01280]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/1280x1280/products/50689/68593/113709XL__53579.1775781319.jpg?c=2 "Barton Plain Bearing Pulley Block Back to Back Swivel Block - Size 1, 30mm [N01280]")
Plain Bearing Pulley Block Back to Back Swivel Block - Size 1, 30mm
The Size 1 Plain Bearing Blocks have a 30mm (1-3/16") sheave. The range is designed with an internal steel frame for added strength and durability. Also available in ball bearing sheave options, the lightweight modern design is available in variations that allow for a multitude of uses on every size craft.
Suitable for up to 8mm (5/16") rope.
![Barton Size 1 30mm Plain Bearing Pulley Block Double w\/Swivel [N01230]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/500x659/products/45691/61436/106984XL__43981.1740371766.jpg?c=2 "Barton Size 1 30mm Plain Bearing Pulley Block Double w\/Swivel [N01230]")
![Barton Size 1 30mm Plain Bearing Pulley Block Single Swivel Becket [N01131]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/500x659/products/49075/66656/111834XL__22850.1765496889.jpg?c=2 "Barton Size 1 30mm Plain Bearing Pulley Block Single Swivel Becket [N01131]")
![Barton Size 1 30mm Plain Bearing Pulley Block Double Swivel Becket [N01231]](https://cdn11.bigcommerce.com/s-e6ht4dde3g/images/stencil/500x659/products/49041/66596/111829XL__79753.1765464143.jpg?c=2 "Barton Size 1 30mm Plain Bearing Pulley Block Double Swivel Becket [N01231]")