Bearing Failure — The Primary Failure Mode

Premature electric motor bearing failure is one of the most common and costly maintenance issues in industrial facilities. Lithium complex greases churn and soften at sustained motor operating speeds and temperatures, causing grease loss and bearing starvation. Polyrex EM's polyurea thickener resists churning and maintains structure throughout the bearing's operating life.

Thickener Incompatibility Risk

Mixing polyurea and lithium complex greases without purging can soften the grease structure and cause it to run out of the bearing — a leading cause of preventable electric motor bearing failure. Always purge bearings fully when switching from a lithium complex grease to Polyrex EM.

Extended Re-Lubrication Intervals

Outstanding grease life of 750+ hours at 177°C allows significantly extended re-lubrication intervals compared to conventional greases — reducing maintenance frequency and labour cost across large electric motor populations in manufacturing facilities.

Low-Noise Performance

Suitable for ball bearing lubrication in noise-sensitive applications such as HVAC systems, hospitals and commercial buildings — where motor bearing noise from grease churning or thickener breakdown is an operational concern.

Outstanding Grease Life

Outstanding long-life, high-temperature lubrication of ball and roller bearings, particularly in sealed-for-life applications — reducing the need for frequent re-lubrication and unplanned motor maintenance.

Advanced Polyurea Thickener

Increased durability versus conventional polyurea greases when subjected to mechanical shear forces — maintaining grease structure and bearing protection throughout the service interval.

Excellent Corrosion Resistance

Provides protection against rust and corrosion, including additional protection under mild salt-water wash conditions — suited to humid and coastal industrial environments.

Low-Noise Properties

Suitable for lubrication of ball bearings in many noise-sensitive applications, where bearing noise from grease churning or thickener structure is a design consideration.

Excellent Low-Temperature Performance

Maintains pumpability and bearing protection down to -29°C — ensuring reliable lubrication and motor start-up performance in cold storage, refrigeration and outdoor industrial environments.

Broad OEM Compatibility

Recommended by many major bearing and electric motor manufacturers for long-life lubrication of electric motor ball and roller bearings — simplifying procurement across mixed equipment populations.

Electric Motor Bearings

Primary design application — standard and sealed-for-life ball and roller bearings on electric motors across manufacturing, processing and industrial drive applications.

Fin Fan Bearings

Cooling fan bearing applications in process plants and industrial cooling systems requiring sustained high-temperature performance.

High-Temperature Pump Bearings

Pump bearing applications operating at elevated temperatures where conventional lithium greases may oxidise or lose film strength prematurely.

Factory-Filled Sealed-for-Life Bearings

Sealed-for-life ball bearings benefiting from extended grease life and low oil separation under continuous operation without scheduled re-lubrication.

Noise-Sensitive Environments

Ball bearing applications in noise-sensitive environments such as HVAC systems, hospitals and commercial buildings where low-noise grease performance matters.

High-Temperature Operation

Ball or roller bearings operating at high temperatures where low oil separation is required to maintain consistent lubrication and extend bearing life.

Both grades use the same advanced polyurea formulation — select by NLGI consistency and bearing orientation specified in your motor OEM manual