System 30 - Standard Track, 1200 mm, , Screw size M6 Jib The 50 mm Single Becket

The 50 mm Single Becket Cam Plain Bearing Block is designed for medium-sized boats for numerous applications

thrust bearings to stabilize the sheave when the rope enters or exits the block with

That means

SubType: cheek double

with a 6:1 purchase operated through cam cleats on the car

System 30 - Standard Track, 1200 mm, , Screw size M6 Jib The 50 mm Single Becket30 mm x 1200 mm long standard track with holes for M6 fasteners. Hole spacing 100 mm. To be combined with System 30 cars and end stops. System 30 is used for medium sized yachts. System: 30 Profile: Standard Length: 1200 mm W: 30 mm H: 17 mm Fasteners: M6 Comment: Hole spacing 100mm