Seldén BBB 40 Single Block tie-on

Seldén BBB 40 Single Block with Tie-On – Ball Bearing Block for Medium Loads

The Seldén BBB 40 single block with tie-on attachment is a lightweight ball bearing block from the Seldén BBB series that is secured with a line (tie on). This design ensures minimal weight and maximum flexibility in block placement. It is suitable for medium loads on medium-sized sailboats.

The stainless steel ball bearings provide the highest strength under dynamic loading, while the glass-fibre reinforced polyamide frame delivers a light yet strong construction. The central hole can serve as an attachment point, and the tie-on design allows installation at virtually any position on board.

Technical Specifications

• Model: Seldén BBB 40
• Type: Single block with tie-on attachment
• Bearing type: Ball bearing
• Suitable for lines: Ø6, Ø7, Ø8, Ø9, Ø10 mm
• Safe working load (SWL): 250 kg
• Breaking strength: 500 kg
• Weight: 53 g
• Material: Glass-fibre reinforced polyamide
• Attachment: Fixed, tie-on (secured with line)
• D-shackle: No, not included

Applications

The Seldén BBB 40 single block with tie-on is ideal for applications on the boom, mast, guardrails or other points where flexible attachment is desired. Suitable as a sheet block, trim block, turning block or in tackle systems on medium-sized cabin sailboats. The tie-on attachment eliminates the need for drilling and provides a clean installation.