Description
Rotary Shaft Oil Seal | Double Lip | Shaft Diameter (20mm) x Bore Diameter (42mm) x Width (5mm) | Nitrile Rubber Lip Material.
Product Overview
The Rotary Shaft Oil Seal with double lip design and dimensions of 20mm shaft diameter, 42mm bore diameter, and 5mm width is built to deliver reliable sealing in compact rotary systems. Designed to prevent oil leakage and protect against external contaminants, this seal is ideal for dynamic applications involving rotating shafts.
The sealing lip is made of Nitrile Rubber (NBR), offering excellent resistance to oils, greases, water, and mild chemicals. Combined with a metal-reinforced outer casing, this oil seal ensures a tight fit and long-lasting durability. Its double lip configuration enhances performance by sealing both internal fluids and external elements, making it ideal for motors, pumps, gearboxes, and more.
- Brand : AVX
- Item Sku : TC20x42x5
- Type : TC 20x42x5 mm
- Inner : 20mm
- Outer : 42mm
- Width : 5mm
- Size : 20mm x 42mm x 5mm
- Seal Material : Nitrile Butadiene Rubber
- Temperature Range : -40 to 248F
Applications
The 20x42x5mm rotary oil seal is widely used in compact mechanical and industrial assemblies, including:
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⚙️ Electric motors and generators
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🚘 Automotive gearboxes and axles
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🏭 Industrial machinery and small pumps
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🔧 Hydraulic and pneumatic systems
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🛠️ Power tools and automation components
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🌀 Conveyors and motion control devices
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📦 Packaging equipment and robotics
❓ Questions and Answers
Q1: What is the benefit of a double lip on this oil seal?
✔️ Answer: The double lip design increases sealing performance by providing two contact points—one lip retains internal fluids like oil, and the second lip blocks external contaminants such as dust and moisture.
Q2: Is Nitrile Rubber a good material for this application?
✔️ Answer: Yes, Nitrile Rubber (NBR) is ideal for general-purpose sealing. It offers strong resistance to oils, greases, and moderate chemicals and performs reliably in temperatures from -40°C to +120°C.