Bearing Isolator Labyrinth Seals
For maximum bearing life, KLOZURE® Bearing Isolator technology utilizes a non-contact seal design, eliminating shaft grooving while minimizing leakage and contamination ingress. KLOZURE® Bearing Isolator Labyrinth Seals provide ultimate performance and protection when uptime and reliability are critical concerns.
Commonly found in pumps, motors, and gearboxes, KLOZURE® Bearing Isolators feature a unitized labyrinth seal design to prevent ingress of contaminants and egress of lubrication. KLOZURE® Bearing Isolators utilize patented Cam-Lock O-ring grooves for ease of installation and retention.
Our Flagship KLOZURE® Metallic Bearing Isolators Include:
- GUARDIAN®: Our patented unitizing ring eliminates the metal-to-metal contact found in other metallic labyrinth seals. Reduces downtime and equipment failure.
- FLOOD-GARD®: Stops leakage in flooded lubricant applications such as gearboxes.
- PUR-GARD®: Reduce food and beverage contamination risks with FDA compliant, metal detectable and x-ray inspectable materials.
- MICRO-TEC® II: Filter dust and small particulates from entering the bearing chamber by adding a microcellular foam into the labyrinth pathway.
- SGi®: Divert stray shaft current on electric motors driven by VFDs with an integrated AEGIS® Shaft Grounding Ring.
Composite Bearing Isolator Labyrinth Seals
PTFE ISO-GARD® for increased chemical compatibility.
Style/Model
ISO-GARD
Features and Benefits:
- Easy by-hand installation — no need for an arbor press
- Uses less energy than contact lip seals
- Non-contact engineered labyrinth design reduces shaft drag
- Non-wearing components
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 55 ratings
- Eliminates repairs for shaft grooving
- Consistent sealing performance
- Non-wearing components
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 55 ratings
- Non-wearing components means seal properties are not degraded over time
Typical Applications:
-
- Pumps, Motors, Bearing supported industrial equipment
EQUALIZER
Features and Benefits:
- Ideal for abrasive environments.
Available Size
Shaft Size (mm)
Bore Size (mm)
Width (mm)
15.88 - 250.01
28.58 - 280.01
9.50 - 22.50
Options
Stator Material
316SS Filled PTFE
Glass Filled PTFE
Graphite Filled PTFE
Rotor Material
316SS Filled PTFE
Glass Filled PTFE
Graphite Filled PTFE
Configuration Type (Isolators)
Flanged
Flanged, Dual O-ring
Flanged, Grease Purge
Flanged, Small Cross-Section
Flanged, Vertical
Flangeless
FDA Compliant Bearing Isolators
ISO-GARD® and PUR-GARD® are optimal for food and beverage applications.
Style/Model
ISO-GARD
Features and Benefits:
- Easy by-hand installation — no need for an arbor press
- Uses less energy than contact lip seals
- Non-contact engineered labyrinth design reduces shaft drag
- Non-wearing components
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 55 ratings
- Eliminates repairs for shaft grooving
- Consistent sealing performance
- Non-wearing components
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 55 ratings
- Non-wearing components means seal properties are not degraded over time
Typical Applications:
-
- Pumps, Motors, Bearing supported industrial equipment
PUR-GARD
Features and Benefits:
- Patented labyrinth design provides bearing protection even in the most challenging environments, extending the life of rotating equipment
- Unitized construction will not come apart during installation
- IP66 in most common design configurations
- Non-contacting design reduces shaft drag and energy consumption
- Available in a broad range of configurations
- Substantially reduced installation time – NO ARBOR PRESS NEEDED
- No metal-to-metal contact
- Metal detectable and x-ray inspectable
- 316 stainless steel stator and rotor
- Patented DETECTOMER® FKM o-rings
Typical Applications:
- Rotating equipment (pumps, motors, gearboxes) exposed to heavy wash down and/or zone 1 and 2 applications
Available Size
Shaft Size (mm)
Bore Size (mm)
Width (mm)
19.05 - 114.30
41.28 - 139.70
9.50 - 17.81
Options
Material
316SS
Compliances/Standards
FDA Compliant
IP65 Rating
IP66 Rating
Configuration Type (Isolators)
Flanged
Flanged, Vertical
Flangeless, Narrow Width
Metallic Bearing Isolators
Browse KLOZURE™ Metallic Bearing Isolators, including GUARDIAN®, FLOOD-GARD®, PUR-GARD®, MICRO-TEC®, and SGi®.
Style/Model
GUARDIAN
Features and Benefits:
- Easy by hand installation — no need for an arbor press
- Non-contact engineered labyrinth design reduces shaft drag. Uses less energy than contact lip seals
- Lifetime bearing protection increases mean time between failure (MBTF)
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 66 ratings
- Eliminates repairs for shaft grooving
- Lifetime bearing protection increases mean time between failure (MBTF)
- Extended bearing life
- Consistent sealing performance
- Non-wearing components
- Garlock’s patented Unitizing Ring eliminates metal to metal contact between stator and rotor.
Split GUARDIAN
Features and Benefits:
- Split GUARDIAN® bearing isolators have a unitizing ring which keeps seal components from having metal to metal contact.
- Extend bearing life by excluding contamination and retaining bearing lubrication to IP65 levels.
- Non-wearing seal components provide consistent sealing performance over the lifetime of a bearing.
MICRO-TEC
Features and Benefits:
- Easy by hand installation — no need for an arbor press
- Uses less energy than contact lip seals
- Non-contact engineered labyrinth design reduces shaft drag
- Non-contact engineered labyrinth design reduces shaft drag
- Eliminates repairs for shaft grooving
- Extended bearing life
- Consistent sealing performance
- Non-wearing components
- Garlock’s patented Unitizing Ring eliminates metal to metal contact between stator and rotor.
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 66 ratings
Typical Applications:
- Airborne dust or other contaminates are present
PUR-GARD
Features and Benefits:
- Patented labyrinth design provides bearing protection even in the most challenging environments, extending the life of rotating equipment
- Unitized construction will not come apart during installation
- IP66 in most common design configurations
- Non-contacting design reduces shaft drag and energy consumption
- Available in a broad range of configurations
- Substantially reduced installation time – NO ARBOR PRESS NEEDED
- No metal-to-metal contact
- Metal detectable and x-ray inspectable
- 316 stainless steel stator and rotor
- Patented DETECTOMER® FKM o-rings
Typical Applications:
- Rotating equipment (pumps, motors, gearboxes) exposed to heavy wash down and/or zone 1 and 2 applications
SGi
Features and Benefits:
- Uses less energy than contact lip seals
- Compliant with safety and industry manufacturing standards
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 66 ratings
- Non-wearing components means seal properties are not degraded over time
- Eliminates repairs for shaft grooving
- Consistent sealing performance
- Non-wearing components
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 66 ratings
- Non-wearing components means seal properties are not degraded over time
- Faster mean time to repair (MTTR) during rebuilds
FLOOD-GARD
Features and Benefits:
- Patented seal design provides bearing protection even in the most challenging flooded environments, extending the life of rotating equipment
- Rugged, unitized construction for ease of installation
- IP66 in most common design configurations
- Available in standard and small cross section configurations
- Substantially reduced installation time – NO ARBOR PRESS NEEDED
- No metal-to-metal contact between stator and rotor
- Handles up to .015″ of misalignment
Typical Applications:
- Rotating equipment such as pumps, motors, gearboxes with flooded internal lubricant levels (levels which are above the bottom of the shaft)
Available Size
Shaft Size (mm)
Bore Size (mm)
Width (mm)
16.99 - 393.70
28.55 - 444.50
9.50 - 41.50
Options
Stator Material
304SS
316SS
Bronze
Rotor Material
304SS
316SS
Bronze
Configuration Type (Isolators)
Flanged
Flanged, Small Cross-Section
Flanged, Small Flange
Flanged, Split
Flanged, Vertical
Flanged, Vertical Small Cross-Section
Flangeless
Flangeless, Narrow Width
Split Pillow Block
Split Pillow Block, Solid
Split Pillow Block, Split
Surface Mounted
Split Pillow Block Bearing Isolators
Ideal sealing replacement for LER/LOR rings to minimize downtime and replacement costs.
Style/Model
GUARDIAN
Features and Benefits:
- Easy by hand installation — no need for an arbor press
- Non-contact engineered labyrinth design reduces shaft drag. Uses less energy than contact lip seals
- Lifetime bearing protection increases mean time between failure (MBTF)
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 66 ratings
- Eliminates repairs for shaft grooving
- Lifetime bearing protection increases mean time between failure (MBTF)
- Extended bearing life
- Consistent sealing performance
- Non-wearing components
- Garlock’s patented Unitizing Ring eliminates metal to metal contact between stator and rotor.
ISO-GARD
Features and Benefits:
- Easy by-hand installation — no need for an arbor press
- Uses less energy than contact lip seals
- Non-contact engineered labyrinth design reduces shaft drag
- Non-wearing components
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 55 ratings
- Eliminates repairs for shaft grooving
- Consistent sealing performance
- Non-wearing components
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 55 ratings
- Non-wearing components means seal properties are not degraded over time
Typical Applications:
- Pumps, Motors, Bearing supported industrial equipment
MICRO-TEC
Features and Benefits:
- Easy by hand installation — no need for an arbor press
- Uses less energy than contact lip seals
- Non-contact engineered labyrinth design reduces shaft drag
- Non-contact engineered labyrinth design reduces shaft drag
- Eliminates repairs for shaft grooving
- Extended bearing life
- Consistent sealing performance
- Non-wearing components
- Garlock’s patented Unitizing Ring eliminates metal to metal contact between stator and rotor.
- Engineered labyrinth designs exclude contamination while retaining bearing lubrication, to IP 66 ratings
Typical Applications:
- Airborne dust or other contaminates are present
Available Size
Shaft Size (mm)
Bore Size (mm)
Width (mm)
45.01 - 203.20
64.49 - 228.60
19 - 36.40
Options
Stator Material
316SS Filled PTFE
Bronze
Rotor Material
316SS Filled PTFE
Configuration Type (Isolators)
Split Pillow Block