Elevator Sheaves
Groove Repair & Machining

I’m Anguel Bojinov, owner of International Revere Machining and a lifelong machinist. 

I specialize in elevator sheave regrooving and repair, often traveling on-site to Chicago skyscrapers, hotels, hospitals, schools, and residential buildings. Whether grooves are worn too deep, uneven, or need complete re-machining, I restore sheaves back to life (on-site or in my shop) so buildings don’t have to replace entire elevator machines. 

I love preserving Chicago’s beautiful old elevators, and my expertise is trusted throughout the Chicago land area and beyond, including emergency repairs in other states.

What Is Elevator Sheave Groove Repair?

Elevator sheaves are the grooved wheels that guide the ropes or cables in both passenger and freight elevators. Over time, these grooves can wear unevenly, become too deep, or even develop small ridges from constant use. When that happens, ropes don’t sit properly, which can lead to vibration, premature rope wear, and reduced elevator performance.

I carefully inspect each sheave and use precision machining to restore the grooves to their original profile. Whether the work is done on-site or in my shop, the goal is always the same: ensure the ropes fit perfectly, the elevator runs smoothly, and the system stays safe and reliable for years to come.

Proper sheave groove repair isn’t just about aesthetics – it has a real impact on elevator performance and longevity. When grooves are worn, it can cause:

  • Uneven rope tension and vibration – which can make elevators noisy or jerky.

  • Shortened rope and sheave life – worn grooves accelerate wear, meaning more frequent replacements.

  • Higher maintenance costs and downtime – unnecessary repairs or replacements can often be avoided.

  • Smooth, safe elevator operation – properly machined grooves ensure your elevators run quietly and safely for tenants, employees, and visitors.

  1. Initial Inspection: I assess the sheave’s condition, checking groove depth, wear patterns, and rope fit.

  2. Groove Profiling Plan: Based on the inspection, I determine the correct groove depth and profile needed for the ropes to run safely.

  3. Precision Machining: Using either my shop lathe or portable on-site tools, I carefully re-cut each groove to exact specifications.

  4. Final Inspection: Every groove is checked for balance, surface finish, and proper rope seating before the elevator goes back into service.

This step-by-step approach ensures every sheave is returned to optimal condition, keeping your elevators safe, quiet, and reliable.

We leverage our years of experience to give you sound advice, no matter the situation. Sometimes regrooving is the answer – other times, a different solution makes more sense. I’ll help you understand your options and make the best decision for your building.

 

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