Block 57mm single lash/tie - Tersma

Tersma Sailing Products

Composite Ball Bearing Blocks 

Composite ball bearing blocks are engineered for competitive sailing.

The high strength composite sideplates are to provide top performance of working loads. 

Rope colours may differ.

57mm Single Lashing Block - BB-5501F
Sheaves:         57mm

Maximum line:  10mm

Weight:            60g

Max. working load: 370kg

Max breaking load: 1200kgs   

MATERIALS

• Sheave: self-lubricant acetal composite
• Ball Bearing: self-lubricant acetal composite
• Sideplates/frames: reinforced glass fiber Nylon composite with UV stablized
• Shackle: Forged  Grade 316 stainless steel

APPLICATIONS

• Mainsheet system, jib and spinnaker sheets on dinghies to 5m(16ft)
• Halyard, vang and backstay on boats to 8m (26ft)
• Control lines on boats of all sizes