ball bearing block / single / hook / with swivel
391 Harken



  • Type:

    ball bearing

  • Number of sheaves:


  • Configuration:

    hook, with swivel

  • Maximum line diameter:

    max. rope ø 5 mm

  • Application domain:

    for sailing dinghies

  • Applications:


  • Working load:

    113 kg (249.1 lb)

  • Breaking load:

    181 kg (399 lb)


The 16 mm is Harkens® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load.