Shaft Oil Seal TC30x42x4.5 Rubber Covered Double Lip w/Garter Spring ID 30mm OD 42mm 30x42x4.5 30 x 42 x 4.5 mm

Rotary Shaft Seal – Double Lip | 30mm x 42mm x 4.5mm | Nitrile Rubber (NBR)

• Brand : AVX Seals
• Item Sku : TC30x42x4.5
• Type : TC 30x42x4.5 mm
• Inner : 30mm
• Outer : 42mm
• Width : 4.5mm
• Size : 30mm x 42mm x 4.5mm
• Seal Material : Nitrile Butadiene Rubber
• Seal Type: TC (rubber-covered outer diameter, double lip, spring-loaded)
• Temperature Range : -40 to 248 F
• Spring-Loaded Inner Lip: Ensures continuous contact with the shaft under dynamic conditions.

Typical Applications:

• Electric motors (especially compact and high-speed designs)

• Gearboxes and transmissions

• Automotive and motorcycle components

• Hydraulic pumps and actuators

• Industrial machinery with limited axial space

❓ Frequently Asked Questions (FAQ)

Q1: Why use a double lip seal over a single lip?

A1: A double lip seal has an added dust lip that:

• Protects against external contamination

• Extends the lifespan of the seal and internal components

• Is ideal for outdoor, dusty, or wet environments.

Q2: Is the spring necessary in a rotary shaft seal?

A2: Yes, the spring applies consistent pressure to the main sealing lip, ensuring it stays in contact with the shaft surface, even if there is minor shaft misalignment or pressure variation.