Description
Rotary Shaft Oil Seal | Double Lip | Shaft Diameter (21mm) x Bore Diameter (29mm) x Width (7mm) | Nitrile Rubber Lip Material.
Product Overview
The Rotary Shaft Oil Seal with Double Lip design is built for dependable sealing performance in rotating machinery. Designed to fit a shaft diameter of 21mm, bore diameter of 29mm, and width of 7mm, this seal ensures precise alignment and superior protection. The premium Nitrile Rubber (NBR) lip material offers excellent resistance to oils, greases, water, and moderate chemicals, while the steel-reinforced body provides stability and durability. The primary sealing lip retains lubrication, and the secondary lip prevents the entry of dust, dirt, and moisture—extending the life of your bearings and components in both industrial and automotive systems.
- Brand : AVX Seals
- Item Sku : TC21x29x7
- Type : TC 21x29x7mm
- Inner : 21mm
- Outer : 29mm
- Width : 7mm
- Size : 21mm x 29mm x 7mm
- Seal Material : Nitrile Butadiene Rubber
- Temperature Range : -40 to 248 F
Applications
The 21x29x7mm Double Lip Rotary Shaft Oil Seal is commonly used in:
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Electric motors, gearboxes, and pumps
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Automotive transmissions, engines, and axles
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Agricultural and construction equipment
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Hydraulic and pneumatic systems
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Compressors and small mechanical drives
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General rotating machinery requiring reliable sealing
Questions & Answers
Q1: What is the purpose of the double lip design?
A1: The primary lip keeps lubricants inside, while the secondary lip protects against dust, dirt, and moisture, ensuring longer component life.
Q2: Why is Nitrile Rubber (NBR) a good choice?
A2: NBR offers excellent resistance to oils, greases, water, and many chemicals, making it ideal for industrial and automotive applications.
Q3: Can this oil seal be used in high-speed applications?
A3: It is designed for light to medium-speed use. For high RPM applications, a specialized high-speed seal is recommended.