Marley Gearbox Repair

We Specialize On Rebuilding Re-Manufacturing & Reverse Engineering Services On Marley Gearboxes

At National Gear Repair We Offer Free Pick Up Delivery And Free Quotes On All Marley Gearbox Repair Offering 24/7 Emergency Rush Services. We Also Stock & Manufacture All Marley Gear Sets & Shafts

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Experience qualifies us to work with Marley Gearboxes

Our extensive experience qualifies us to work with Marley Gearboxes from a broad range of manufacturers. As with all of our gearbox services, our gearbox rebuild and repair services conform to ISO standards. Contact us for more information on our capabilities and rush service.

Marley Gearbox Rebuild, Repair, and Emergency Services

Once your Marley gearbox arrives at our facility we disassemble, clean, inspect and measure all gears and shafts and determine if your Marley gears and shafts are qualified to be repaired. If the Marley gears and shafts are not repairable,  we have the capabilities and expertise to manufacture all new Marley gears and shafts such as Helical, Double Helical, Herringbone, Split Herring bone, Bevel, Spiral Bevel, Spur Gears, Ring Gears, Eternal Ring Gears, Rack & Pinion, Worm Gears, Double Enveloping Worm Gears, Hypoid Gears, Screw Gears, Plus More! Once your Marley gearbox is repaired we then do a six hour test run for overheating, vibration, and leaking to ensure our 24 Month Guarantee. National Gear Box Repair can do all of these repairs and rebuilds at a considerable amount of saving rather than buying a new Marley gearbox.

Marley Gearboxes, Gear Reducers, and Cooling Towers

Part of the SPX Cooling Technologies Family , The Marley Gearbox has been making an impact in the industry as a cooling tower service for 80 years with its flagship cooling tower The Marley Cooling Tower. After being acquired by SPX The Marley Cooling Towers came to eventually replace the Amarillo Gearbox / Cooling Tower For SPX’s Cooling Service.

Now manufactured by SPX the Marley M Series Gearboxes and Gear Reducers are engineered to directly replace all Amarillo brand gear drives in all cooling services offered through SPX. Marley Cooling towers are designed to provide performance and longevity. From its robust housings and bearings made with modern seal enhancements pre built in. This allows the Marley Gearbox to operate with minimal vibration while maintaining a smaller footprint. The M Series Gear Reducers are also packed with these features to remove the need for additional pumps or filters.

Marley gearboxes have grown in popularity as a replacement to old systems using Amarillo or other cooling towers thanks to a case study showing that despite increasing all cells to higher hp capacity the vibrations in older cooling tower systems still cause faults and breaks within the system. WIthout the need of using special lubricants or auxiliary oil coolers or air purge lines the Marley M1713 Gear Reducer Gearbox was shown to reduce all vibration and maintain efficiency for years. This case study has led to a surge in the use of Marley Gear Reducers in cooling tower setups which may not have been retrofitted properly into the custom setups. Due to this National Gear Repair has become more familiar with even the more modern Marley Gear Reducers as we have gone on site to perform on site repair work on these newer models that were not installed properly. Once re oriented and installed correctly we have observed that there are no issues with the replacement drop in Marley Gearbox Units.

Marley Gearbox Repair

Is your Marley Gearbox in need of Industrial Gearbox Repair ? if you find yourself in need of repair feel free to Contact us at 909.460.0101 This will put you through to our Sales Department. These aren’t your usual sales staff as all Sales Staff at National Gear Repair have years of plant experience under their belt. We can generally diagnose an issue based on a verbal description However we would still recommend letting us pick up the gearbox in question as we offer free freight nationwide.

Once your Marley Gearbox makes it back to our shop we break it down, clean it out in an industrial parts washer and begin the inspection process to diagnose the fault in the gearbox. This then allows us to prepare a quote with an estimated lead time to send over as soon as possible. We also offer Emergency Rush Repair Service or 911 Emergency Rush Repair which can have your gearbox full repaired and reconditioned and back at your plant within 24 hours from pick up.

If you are not impressed by our quote and choose to not have us repair your gearbox we can put the gearbox back together exactly the way we received and ship it back to you For Free. All Freight and Quotes Are Free Nationwide at National Gear Repair.

Should you give us the approval to repair your Marley Gearbox or SPX M Reducer we will continue with the process and manufacture any gears and gearing needed for your Marley Gearbox. National Gear Repair can manufacture gears up to 20’ in diameter in as little as 24 hours reducing our lead times and making us one of the fastest Industrial Machinery Repair Centers in America.

National Gear Repairs Technicians will them remove all pearings never by torching but by using liquid nitrogen and thermal expansion. We dont just replace bearings and seals here, At National Gear Repair all technicians are certified through the Falk School and Timken Bearing allowing them to work efficiently, effectively and ensure that your gearbox repair isn't just matching the quality of the OEMS but Exceeds it by a large margin.

National Gear Repair also offers an unparalleled 24 month warranty that starts on the date of installation. Even if we deliver your Marley Gearbox or Marley Cooling Tower or SPX M Reducer Cooling Tower and it sits around for six months, The Warranty will still become effective on the date that machine is put into production. No machine shop can make a guarantee like that which is why National Gear Repair is an Industrial Machinery Repair Center.

If you have any concerns or questions regarding the repair of your Marley Gearbox or SPX M Series Gear Reducer Cooling Tower, please give us a call at 909-460-0101 or send us an email at If you would like to inquire about our 24 hour rush repair service simply contact us using this form here.


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Call National Gear Repair Today, for all of your Marley Gearbox repair and rebuilds your company needs!