Harken Single Carbo Block with Swivel/Becket 2637 - 40mm

The Harken 40 mm Blocks are commonly usesd for Main/jib sheets, mainsheet fine-tune, outhauls, cunninghams, vangs and control lines for maximum 14 mm rope.

The low friction Harken carbo air block 40 mm with swivel are lightweight, strong, reliable and affordable sailing pulleys. Companions to the popular Harken black magic block line, these small, compact blocks have very high working loads for safe, easy trimming.

• Glass-filled nylon sideplates: load-carrying curved bearing races.
• Integral becket allows 2:1 or 3:1 purchase.
• Patented Harken U-Locks holds the swivel in front/side position, or lets block spin freely.

Specifications

• Sheave diameter: 1 9/16" (40 mm)
• Length: 4" (102 mm)
• Weight: 1.7 oz. (48 g)
• Shackle pin diameter: 5/32" (4 mm)
• Maximum line diameter: 3/8" (10 mm)
• Maximum working load: 485 lb (220 kg)
• Breaking load: 1620 lb (735 kg)

Technical File

Instruction Manual