1.125" X 2.000" X 0.250" TCM Oil Seal NBR TB-H

1.125" ID X 2.000" OD X 0.250" HT TCM Oil Seal NBR TB-H

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• Custom orders are available and can be shipped as soon as two business days!
• Minimum quantity and pricing for custom orders vary based on the size(s) and dimension(s) ordered.
• Shipping is calculated after we receive the request.
• Send us a message with the size and shape you need.
• If you need it fast let us know and we will work on getting it to you as soon as possible, extra shipping charges may apply.

What is an Oil Seal?

• A specific type of seal that is an important part of any rotating or moving part assembly. 
• Typically, the Oil Seal is installed adjacent to a bearing
• This seals in or seals out, as necessary, the various liquids, gases or solids encountered by the mechanism.

 What is the purpose of an Oil Seal?

• An Oil Seal is designed to perform three major functions. 
• Prevention of lubricants from leaking outside the seal
• To act as a barrier to retain the lubricating oil
• To prevent dirt and other contaminants from entering the machinery.

 How is an Oil Seal constructed?

• Oil seals normally consist of three basic components:
• the sealing element
• the metal case
• the garter spring.
• The sealing element makes up the interior of the Oil Seal and provides structural stability to the Oil Seal. 
• The materials commonly used are: 
• Nitrile Rubber (NBR)
• Polyacrylate Rubber (PA)
• Silicone Rubber (SI)
• Fluorocarbon Rubber (FKM).
• The metal case is the exterior of the Oil Seal. 
• The main function of the metal case is to give rigidity and strength to the seal.
• Often the case is covered by the same rubber material used in the sealing element, which also helps seal the exterior of the Oil Seal in the housing bore.
• Common case material types are:
•  Carbon Steel
• Stainless Steel.
• The garter spring is located at the end of the primary sealing lip
• Is used to apply pressure to the sealing lip against the shaft as well as prevent the entry of contaminants from the outside. 
• Common garter spring material types are:
• Carbon Steel
• Stainless Steel. 

NBR Oil Seals

Nitrile - (NBR/BUNA)

• NBR is a synthetic rubber produced from a copolymer of acrylonitrile and butadiene. 
• NBR is the recommended seal material for most common applications.  
• NBR seals are compatible with water and most common mineral oils and greases. 
• They have good abrasion resistance, resistance to compression set, and a high tensile strength.