Seals Made Overseas: Is the Savings Worth It?

Cliff • May 22, 2020

We’ve been getting quite a few calls from customers who traditionally order their seals and bearings from oversea suppliers, such as China and India. This is likely due to the manufacturing industries in these countries continuing to be impacted by the coronavirus pandemic.

We’re getting a shot a business we’ve never had before, and we’re hoping customers review the full impact of “Made in America” and how it affects their company’s bottom line — as well as all the potential issues that come with any product purchased overseas.

Is it Really Cheaper to Order Your Parts Overseas?

There’s no question that piece part pricing from overseas can generally be lower than parts made in America. That is, until you figure in transportation, duty, lead time, and the frustration that goes with encountering any problem with the part.

If you look at the landed cost at our customers’ door, we can generally compete with a higher level of quality, delivery, and technical support compared to anything coming across any border. In the end, the overall costs of ordering parts made in America is comparable.

Taking Care of Our Customers During the Pandemic

Throughout the pandemic, Eclipse Engineering continues to be fully staffed and in production. Our Engineering department has been busy working on issues that had been on the back burner in the past.

Many of the programs we’re seeing are all about a higher level of service, with deliverables tailored to our customers’ needs. Some are all about product improvement, and others are cost driven. 

We’re in business to supply product made in America on your time frame. With blanket orders, we’re happy to hold inventory to handle the fluctuations in your changing manufacturing schedule. And delivers can be handled in days, not weeks or months.

How We’re Protecting Our Employees

Like the rest of the world, many of our employees telecommute. But as a manufacturer, folks need to be in the building. Their safety is always of the highest importance, especially now.

At Eclipse, we’ve always taken care of our employees by utilizing varying shifts, operating 7 days a week, and staggering hours to ensure the safety of all those involved in the manufacturing process.

The current pandemic has made us more aware than ever that taking care of our employees means we’re able to continue to support our customers’ needs — something we’ve been succeeding at as long as we’ve been in business.

We’re asking you as our customers to consider the value of having a supplier in your own back yard. For the many customers we have overseas, our doors are open for business, and we look forward to continuing to supply your product on time and at a marketable price, with the value of technical support a phone call, email or text away.

Thanks, and stay healthy out there.

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Eclipse deals regularly with challenging sealing applications from all industries. High pressures and speeds create unique sets of conditions where seal design and material properties are pushed to the limit. While reciprocating applications can certainly test seals to the edge of capability, often times rotary applications can present the greatest challenge to seal integrity and wear life. Unlike reciprocating configurations where the seal is acting on a different part of the shaft or bore throughout it’s operating range, rotary seals must operate on the same sealing area continuously. This makes things like heat rejection much more difficult, especially in unlubricated or dry running applications. Extreme localized heating can have negative affect on both seal and hardware life. Rotary applications also pose sealing difficulties due to the simple fact that surface speeds can be much higher than in reciprocating systems. A simple electric motor can operate at very high rpm, while long stroke, high speed reciprocating machinery is a major piece of equipment that is far less common (though Eclipse also has sealing solutions in a number of these situations). A customer approached Eclipse with an application that was beyond the scope and capability of any standard, off-the-shelf rotary seal. This sealing system would require a combination of both wear resistance in high-speed rotary, as well as excellent leakage control and sealability. Two factors that, more often than not, work in opposition to each other. The Customer Issue The customer was developing a test system that required an electric motor shaft passed through the wall of a large vacuum chamber. The testing apparatus needed a sizable motor to meet the speed and torque requirements. Adapting the motor to operate inside the chamber would not be practical due to contamination and motor cooling concerns. Therefore, the motor would have to be placed outside the chamber and a driveshaft would have to go through the chamber wall. Which, of course, would need a seal. Operating Conditions:
 Rotary Shaft Seal
 Shaft Diameter: 2.5”
 RPM: 7,500 RPM - unlubricated
 Pressure: Vacuum internal side / 1 ATM external side Temperature: 40° - 90°F The customer knew any kind of off-the-shelf rotary seal with a rubber element would not last any amount of time in the combination of speed and a dry running condition. They also knew a single lip PTFE seal would likely not meet their leakage requirements. Therefore, they turned Eclipse for a custom sealing solution.