Rondelle frein MB 31

Overview This MB 31 lock washer is engineered to secure KM KML and HM lock nuts onto shafts or adapter sleeves. The washer engages a keyway to prevent unintentional loosening and maintains precise nut positioning. Each installation requires a new washer to ensure secure fastening. Designed for simplicity and reliability it supports stable mounting in industrial assemblies. Features

• Engages keyway in shaft or sleeve to prevent lock nut loosening in operation
• Washer tab bends into lock nut slot to maintain precise positioning during use
• Requires replacement at each installation ensuring consistent fastening security
• 155mm bore and 212mm outer diameter accommodates large shaft assemblies for flexibility
• Simple installation and removal reduces maintenance downtime and labour requirements

Application & Usage

• Used with KM
• KML
• and HM lock nuts for shaft assemblies
• Ideal for adapter sleeve installations requiring stable nut retention
• Compatible with industrial equipment involving frequent lock nut replacement