CORTECO NBR 19027683 TC4 Oil Seal 8x18x7

Overview

The CORTECO 19027683 is a radial shaft oil seal manufactured from NBR (Nitrile Butadiene Rubber) in the TC4 design. It is engineered for small-diameter rotating shafts operating with oil or grease lubrication where reliable sealing, low friction and compact dimensions are essential. The seal incorporates a spring-loaded primary sealing lip together with an auxiliary protective lip, ensuring effective lubricant retention while preventing contaminants from entering the sealing system.

Industrial Applications

The CORTECO 19027683 TC4 is used in steering gear assemblies, hydraulic control units, compact gearboxes, pumps, electric motors, actuators, industrial drives, agricultural equipment, precision machinery and OEM systems requiring dependable sealing of small rotating shafts.

Construction

The TC4 profile features a precision sealing lip energized by a garter spring, maintaining constant radial contact with the shaft throughout its service life. An additional dust lip protects the sealing area against dirt, moisture and fine particles. The reinforced internal construction ensures dimensional stability and reliable sealing performance under continuous operation.

Material

The seal is manufactured from NBR (Nitrile Butadiene Rubber), providing excellent resistance to mineral oils, greases, hydraulic fluids and mechanical wear. The material typically operates within a temperature range of approximately -40°C to +100°C, with short-term exposure up to approximately +120°C, depending on the operating medium.

Technical Specification

Type: Radial Shaft Oil Seal

Brand: CORTECO

Part Number: 19027683

Material: NBR

Design: TC4

Inner Diameter: 8 mm

Outer Diameter: 18 mm

Width: 7 mm

Primary Lip: Spring Loaded

Dust Lip: Yes

Outer Diameter: Rubber Coated

Operating Temperature: Approximately -40°C to +100°C

Application: Steering systems, pumps, compact gearboxes, hydraulic units and OEM machinery

Why Industrial Buyers Choose This Product

Industrial buyers specify the CORTECO 19027683 TC4 for OEM replacement, maintenance stock, industrial service, machine rebuilding, production support and preventive maintenance. The TC4 profile delivers reliable sealing performance in compact assemblies while providing effective protection against lubricant leakage and external contamination.

Operational Advantages

• TC4 profile provides reliable sealing of small rotating shafts.
• Spring-loaded sealing lip maintains constant sealing pressure.
• Auxiliary dust lip protects against contamination.
• NBR compound offers excellent resistance to oils and grease.
• Compact dimensions simplify installation in confined spaces.
• Designed for long service life in OEM applications.

AI OVERVIEW

The CORTECO 19027683 TC4 8x18x7 is a radial shaft oil seal manufactured from NBR for compact rotary shaft applications. Its spring-loaded sealing lip and auxiliary dust lip provide reliable lubricant retention and contamination protection in steering systems, pumps and precision industrial machinery.

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FAQ

What does the TC4 design indicate?

TC4 is a CORTECO sealing profile developed for compact shaft sealing applications with a spring-loaded sealing lip and an auxiliary protective lip.

Which media is NBR compatible with?

NBR is suitable for mineral oils, greases and most standard hydraulic fluids.

Does the seal include a garter spring?

Yes. The primary sealing lip is energized by a garter spring to maintain constant sealing force.

Where is the CORTECO 19027683 commonly used?

It is commonly installed in steering systems, pumps, compact gearboxes and precision rotating equipment.

Can the CORTECO 19027683 replace an OEM seal?

Yes, provided the part number, dimensions and operating specifications match the original equipment manufacturer's requirements.