Selden: Plain Bearing Block PBB50

PBB50. Suitable for lines up to 12mm.

Plain bearing blocks provide great performance in applications with heavy and static loads. Available in 16, 20, 50, 60, 70, 80 and 100 mm sheave diameters.

APPLICATIONS

• Halyard tuning
• Mainsheet systems
• Boom vang

WHICH BLOCK?

PBB20

• Max line size 6mm
• Small block suitable for lazy jacks.
• Acetal sheave
• Stiff glass fibre reinforced cheeks to prevent lines from wedging 

PBB50

• Max line size 12mm
• Acetal sheave.
• Stainless steel strap for best strength and longer service life.
• Stiff glass fibre reinforced cheeks to prevent lines from wedging.
• Glass fibre reinforced composite.
• Sliding swivel locking mechanism.

PBB60

• Max line size 14mm
• Acetal sheave.
• Stainless steel strap for best strength and longer service life.
• Stiff glass fibre reinforced cheeks to prevent lines from wedging.
• Glass fibre reinforced composite.
• Sliding swivel locking mechanism.

PBB70

• Max line size 14mm
• Glass fibre reinforced sheave with Polymer bushing.
• Optimised 6/8 shackle with Ø6 body for good compatibility and Ø8 pin for high bending resistance.
• Stainless steel strap for best strength and longer service life.
• Stiff glass fibre reinforced cheeks to prevent lines from wedging.
• Glass fibre reinforced composite
• Sliding swivel locking mechanism.

PBB80

• Max line size 16mm
• Glass fibre reinforced sheave with polymer bushing.
• Bronze top swivel bushings.
• Optimised 8/10 shackle with Ø8 body for good compatibility and Ø10 pin for high bending resistance.
• Stainless steel strap for best strength and longer service life.
• Stiff glass fibre reinforced cheeks to  prevent lines from wedging.
• Glass fibre reinforced composite.
• Sliding swivel locking mechanism.

Image shows:

Top (L-R) Single, Single Becket

Bottom (L-R) Fiddle, Fiddle Becket, Fiddle Becket Cam