dbde24e1-4012-47b6-8db4-e89ee4ca5a70 - Polypac

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dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Bearing Housing Seal - Reliable Custom Sealing Solution

Polypac Bearing Housing Seal offers durable, leak-resistant protection for bearings in hydraulic and industrial equipment. Customizable materials and precision manufacturing ensure long life and easy installation.

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Product Details

Product Overview

The Polypac Bearing Housing Seal is designed to protect bearings and housings from contamination and fluid leakage in hydraulic and industrial applications. Built with durable materials and precision molding, this seal reduces maintenance downtime and extends the service life of rotating components.

Why Choose Polypac Bearing Housing Seals

Polypac combines nearly two decades of sealing expertise, advanced production equipment, and strong R&D partnerships to deliver seals that meet demanding working conditions. Our factory spans over 10,000 m² with an 8,000 m² production area, enabling consistent quality and fast turnaround for custom orders.

Key Features

Material options: NBR, FKM, EPDM, silicone, FFKM, and PTFE variants for compatibility with oil, grease, and chemicals.
Excellent wear and pressure resistance to protect bearings and prevent leaks.
Custom sizes and profiles to fit special housings and unusual operating environments.
Precision molding and strict quality testing to ensure reliable field performance.
Designed for easy installation and low maintenance.

Applications

Ideal for hydraulic pumps, gearboxes, motors, industrial fans, and any equipment where bearing protection and fluid containment are critical. Suitable for both static and light rotary sealing duties.

Value and Support

Polypac offers tailored sealing solutions based on material science and real-world testing. We work closely with universities and research institutions to stay at the forefront of sealing technology. Whether you need a standard bearing housing seal or a custom compound for extreme temperatures or aggressive media, our team will recommend the best option to reduce leakage, lower lifecycle costs, and improve equipment reliability.

Get Started

Contact Polypac with your housing dimensions, operating conditions, and performance goals. We provide fast samples, material recommendations, and production capacity to support large or small volume needs.

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Question you may concern

What is the purpose of the metal spring in a rotary shaft seal?

The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.

Why did my O-ring fail prematurely?

Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.

What does "AS568" mean?

AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.

When should I use a spring-energized seal instead of a standard elastomeric seal?

Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.

Let's talk

PRODUCTS

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

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