Double Lip Nitrile Rotary Shaft Seal (2.5x3.251x0.375 Inch)

Double Lip Nitrile Rotary Shaft Seal (2.5x3.251x0.375 Inch)

Marsoni

M251S

$12.83

Get it in 3 business days with 1 day shipping. Friday, May 29

Double Lip Nitrile Rotary Shaft Seal (2.5x3.251x0.375 Inch)Acrylonitrile butadiene rubber (NBR) is the material name for nitrile rubber. This material is very good for seals due to its make up. Nitrile rubber can tolerate short term dry running of the sealing lip. The operating temperature range without failure of nitrile rubber is 40 to +100 C. This also offers a special nitrile rubber compound with a temperature range between 55 and +110 C. Please click here for a full in depth look at the range of seals

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Mostly painless install, packaging was subpar but everything works well. Holds a 27" monitor and a 24" monitor very well. Adjustable angles and hinges allowing for customization for your needs. Seems to be very sturdy and hasn't dropped since making sure everything is tight. Overall, worth it compared to more expensive options.

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Reviewed in the United States on May 6, 2026

Verified Purchase

Josiel Rosales

Belleville, US

★★★★★ 5

Sturdy, Extremely Adjustable, and Saves Huge Desk Space!

Size: 17"-49", Style: Single Arm

This WALI monitor mount is incredibly solid and handles the weight of my monitor easily without any sagging or shaking. The gas spring arm moves fluidly, making it super easy to adjust the height, angle, and tilt whenever I need to. Installation was straightforward with clear instructions, and it has freed up so much valuable desk space. Excellent build quality for a great price!

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Reviewed in the United States on May 29, 2026

Verified Purchase

Joshua B.

New York, US

★★★★★ 5

Solid Mount for a Large Monitor

Size: 17"-49", Style: Single Arm

Picked this up to mount a single 37" monitor to my adjustable desk and it’s been working great. The arm feels sturdy and holds the weight of the monitor without sagging or drifting over time. Installation was pretty straightforward and it gave me a lot more desk space compared to using the factory stand. It also moves smoothly when adjusting the monitor position or changing desk height. If you’re running a larger display on a standing desk setup, this is a solid option that feels much more substantial than some of the cheaper monitor arms out there.

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Reviewed in the United States on May 11, 2026