70 mm Plain Bearing Block - Single, Swivel, Becket MRB60 The block is designed with

The block is designed with lightweight Delrin ball bearings and comes with a composite sheave

suitable for up to ø5 mm line

Includes Bearing (174-612)

The 50 mm Plain Bearing Block - Cheek is designed for medium-sized boats to guide lines on deck

70 mm Plain Bearing Block - Single, Swivel, Becket MRB60 The block is designed withThe 70 mm Plain Bearing Block Single Becket is designed for high strength and performance on medium sized boats. It features a stainless steel strap for durability, a swivel locking mechanism, glass fiber reinforced composite cheeks to prevent jamming and a becket with detachable pin for a spliced eye. Ideal for spinnaker sheets and barber haulers and numerous more functions. Sliding swivel locking mechanism to select position of the shackle, 0, 90 or