52x68x8 Single Lip Nitrile Rubber Rotary Shaft Seal

52x68x8 Single Lip Nitrile Rubber Rotary Shaft Seal

Marsoni

M251S

$11.92

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

52x68x8 Single Lip Nitrile Rubber Rotary Shaft SealAcrylonitrile 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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Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.

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Reviewed in the United States on February 26, 2024

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Carl L. Bradley

Los Angeles, US

★★★★★ 1

Kinda flimsy…

Thought the assembly was metal, it’s some kind of PVC.

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Reviewed in the United States on September 22, 2025

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DRJRRT

West Palm Beach, US

★★★★★ 5

Great references book.

Format: Hardcover

Excellent book for medical reference and refresh of knowledge.

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Reviewed in the United States on April 28, 2026

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Ray Schaar

Dallas, US

★★★★★ 5

A Wonderful Update To A Great Old Reference Book!

Format: Hardcover

It's the Merck Manual! If you know medicine but are aware you don't know EVERYTHING about EVERYTHING! (Few if any do!) This is a wonderful reference. If you have no medical knowledge and think this will make you know what doctors know. Don't waste your money. You have to have a basic understanding for this to be helpful. This is a wonderful update to an old favorite.

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Reviewed in the United States on July 16, 2025