The Line Boring Alternative

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The Line Boring Alternative

Expander System is the cost-effective & permanent alternative to line boring

Contact Our Local Experts
Nord-Lock Group Expander - Line Boring Landing Page - EN-US

Line boring is an expensive & time-consuming method used to repair pivot wear - Expander System is an alternative & permanent solution

the challenge of using line boring in lug wear

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

 

Expander System

Contact Our Local Experts

Expander System

Contact Our Local Experts

Expander System is a cost-effective & permanent alternative solution

SIMPLICITY Comparison of common practices and how assembly, maintenance, and accuracy can be improved.
SAFETY Compare safety risks involved in the assembly, operation, and maintenance.
RELIABILITY The right long-term solution for the prevailing conditions.
LIFETIME COST Minimize regular maintenance, reduce operational expenses and increase production rate.

THE MOST RELIABLE SOLUTION FOR HEAVY MACHINERY

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.

A modern alternative for lug repair

  1. The Expander System is installed directly into the existing mounting
  2. Upon tightening the fasteners, the washer presses the slotted expansion sleeve up the tapered ends of the pin
  3. The sleeves expand, conform with the wear pattern and lock the system in the lug ears
  4. Once retorqued, the system will lock from both sides
  5. Used in infield installation – no need to bring back your machine to the repair facility 

The custom-made pivot pin solution for your application

World leader in engineering capability for pivot designs 

For any machine, make, model, size or year

For any machine, make, model, size or year

Custom diameter and tolerances

Custom diameter and tolerances

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