Lug wear is common in exposed pivots and normally occurs due to the clearance between the bore and the conventional pin. This leads to uneven wear causing excessive movement, low precision, & decreased operational reliability 

Line boring is the most common repair method, however, it comes with many challenges: 

• Reoccurring wear & repeat maintenance
• Can be dangerous to use hot works 
• Time-consuming
• Expensive
• Hard to reach applications

With the Expander System, the repair can be carried out directly in the worn mountings without welding and line boring – a permanent solution to lug wear.