System with a grease cartridge and a grease line for lubrication of a locking mechanism of semitrailer truck couplings includes antifriction coatings on the locking hook and the locking bar

摘要

The system with a grease cartridge (6) and a grease line (7) for lubrication of a locking mechanism (1) of semitrailer truck couplings (2) includes antifriction coatings on the locking hook (4) and the locking bar (5). Independent claims are also included for: (A) a locking hook with an antifriction coating; (B) a locking bar with an antifriction coating.