Seldén PBB high load bearing blocks, single disc with under shackle Acetal discs High strength stainless steel axles Composite housing Swivels can be fixed in longitudinal or transverse position Designation Part number Disc Ø mm Working load kg Breaking load kg max. Line-Ø mm Shackle-Ø mm Pin-Ø mm PBB40 9404-001-02 40 350 700 8 - - PBB50 9405-001-02 50 650 1300 12 5 5 PBB60 9406-001-02 60 1000 2000 14 6 6 PBB70 9407-001-02 70 1500 3000 14 6 8 PBB80 9408-001-02 80 2000 4000 16 8 10