Delivering Fluid Sealing Solutions Since 1972

Bearing Isolators

High-performance bearing isolators specifically designed to provide maximum efficiency on rotating equipment

M Barnwell Services supplies the complete range of Garlock’s KLOZURE® Bearing Isolators (the best alternative to Radial Lip Seal). The range features a labyrinth design which helps exclude the ingress of contaminants whilst retaining lubrication. As a result service life is extended and consumption power is reduced (via non-contact sealing with no wear components). In addition, its metallic and non-metallic design ensures compliance with many industry standards.

Fluoroelastomer (FKM/FPM) O Ring fit provides ease of installation without the need to arbor press, whilst the secondary static seal reduces the risk of shaft scratching. High speeds up to 60,9 m/s and high misalignment up to 0,64mm are another feature. Applications for bearing isolators are include within motors, gearboxes, and pumps.

A wide variety of sizes, configurations, and bespoke designs are available with no tooling need for a custom application.

Our range of Garlock® Bearing Isolators:

Bearing IsolatorsFLOOD-GARD® 

Ultimate sealing solution for aggressive flooded lubrication applications.

Bearing IsolatorsGUARDIAN™ 

Exceptional bearing protection for pumps, motors, and industrial equipment under toughest conditions.

Bearing IsolatorsMICRO-TEC® II 

GUARDIAN™ features, metallic bearing isolator with micro-cellular filter.

Bearing IsolatorsPUR-GARD® 

For the food and beverage processing industry. Manufactured with materials that are FDA compliant.

Bearing IsolatorsSGi® 

Shaft grounding merged with exceptional shaft protection, the best solution for electric motors.


The first truly unitized split isolator. Offering exceptional bearing protection under the toughest conditions.


Bearing protection for pumps, motors, and other equipment. Filled with PTFE material for excellent chemical resistance.


Provided in a number of configurations depending on the specific application




Surface Mount


Pillow Block

Patented Design

Other configurations include Flange Mounted (Bolt-on), Narrow Width, Grease Purge, Vertical Mount, and Custom/Special Design.

M Barnwell Services has successfully provided bespoke solutions throughout a wide scope of applications and industries to meet our customer’s most demanding applications.

If you would like more information about our range, contact a member of the team.


0.875" (22.2mm) to 23.250" (590.6mm)
Bespoke sizes also available

Temperature Range

-30°C (-22°F) to +204°C (+400°F)


up to 12,000fpm (60.9m/s)

Industry Standards Compliance


Typical Applications

Pump bearing frames, electric motors, gearboxes, split pillow block bearings, fans, turbines (steam), heavy washdown, clean requirements, dusty environments, VFD (Variable Frequency Drive) electric motors suffering from EDM (Electrical Discharge Machining, FDA requirements