Hydraulic and Fluid Seals, Rod Seals - American High Performance Seals

High-Performance Rotary Seals

Rotaflon™ SB-Series

For sealing dynamic, rotary motion

SB-Series rotary seal installation example

The SB-series is most suited for high surface speeds and medium to lower pressures. Seal lip and seal body are constructed from PTFE composite materials or other highly engineered polymer materials to meet the most challenging rotary sealing applications. These compounds offer …More Info

low friction and a wide temperature range, and are suitable for sealing corrosive and abrasive media. The Rotaflon SB-series employs a deflected lip seal geometry; anti-rotational devices such as O-rings or flanges are utilized to prevent the seal from rotating with the shaft.

Capabilities Rotaflon™ SB–Series:

Low friction and wear
High surface speeds up to 7,000 fpm (35m/s)*
Sealing pressure up to 500psi (35bar)*, PV-Rating* 4.0 to 9.0 depending on seal design
Can tolerate dry running conditions
Seals corrosive and abrasive media
Temperature range: -320ºF to 400ºF (-200°C to 200°C)**
Extended seal life
Increased shaft misalignment (only seal designs with springs)
FDA compliant designs available
Available quickly in low volumes with no tooling charges

Our Rotaflon™ SB-Series are categorized as follows:

– up to 300psi (20bar)*; PV-Rating 4.0 to 5.0
– up to 750psi (50bar)*; PV-Rating 8.0 to 10.0

Calculate the PV-Rating of the seal required for your application using calculator below:

The PV-Rating of an AHPSeal rotary seal gives an indication of the seal’s ability to withstand the stress applied to a seal due to sealing pressure as the shaft rotates with velocity. The higher the PV-Rating is, the higher the seal’s ability is to handle a higher combination of pressure and rotational velocity, with 10 being the highest. This is to only be used as a guide for lubricated operating conditions to narrow down possible sealing products.
Seals can not be operated at their upper pressure and speed rating at the same time!

Please contact one of our experienced seal engineers to select the best seal for your application.

PV-Rating Calculator:

INCH

METRIC (mm)

Shaft Diameter :

RPM:

Pressure :

PV-Rating =

High-Performance Rotary Seals

Rotaflon™ SB-Series – up to 300psi – PV-Rating: 4.0 to 5.0

Typical Applications

-Sealing pressure from one side

-Pumps, motors, compressors, machine tools, brakes, clutches, mixers and others.

Operating Range

Pressure: up to 110psi (7.6bar)* continuous, up to 300psi (20bar)* max. pressure spikes. For pressures exceeding 60psi (4bar), please contact engineering.

Surface Speed: up to 7,000fpm (35m/s)* at lower pressure

Temperature: -58 to 400°F (-50 to 200°C)* depending on seal material

PV-Rating: 4.0 to 5.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: Proprietary composite materials

Availability: More info…

Most standard, non-standard, and application-specific designed SB-rotary shaft seals, in inch or metric sizes, are available with a 1-2 week turnaround. Expediting service available.

SB10

Single-lip PTFE rotary shaft seal

This high-performance seal design incorporates a formed seal lip for low lip load and low friction and is capable of handling aggressive media, dry run, high surface speeds and low to medium pressures. The soft OD eliminates damage to housings, and the integrated O-ring on the OD of the seal serves as an anti-rotation device and maximizes static sealing between the seal and the bore. This seal is available in smaller quantities without tooling requirements. It is typically used to provide a low leak, low friction solution for gearboxes and environmental seals. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 5,000 fpm (25m/s)	standard oil lubrication, high waterbased fluids	YES	5
Permachem 6235	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 5,000 fpm (25m/s)	Soft shaft material, gaseous media, FDA compliant	YES	5
Duraloy 4736	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 5,000 fpm (25m/s)	low wear and abrasion, long service life	YES	5

Compare

SB12

Single-lip PTFE rotary shaft seal for higher sealability

This seal design incorporates a formed seal lip with an “elf-toe” design offering extended runout and improved sealability, especially for abrasive media or gaseous media, due to the slightly higher lip load. It is capable of handling extreme temperature, abrasive media, high surface speeds, low to medium pressures, and can even run dry. The soft seal OD eliminates damage to housings manufactured from expensive metals. An integrated O-ring on the OD of the seal serves as an anti-rotation device and provides positive static sealing between the seal and the bore. It is typically used as a highly sealable solution for gearboxes, submersible pumps/motors and…

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 4,000 fpm (20m/s)	standard oil lubrication, high waterbased fluids	YES	5
Permachem 6235	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 4,000 fpm (20m/s)	Soft shaft material, gaseous media, FDA compliant	YES	5
Duraloy 4736	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 4,000 fpm (20m/s)	low wear and abrasion, long service life	YES	5

Compare

SB20

Lowest friction single-lip PTFE rotary shaft seal

This machined low-torque seal lip design extends seal life within its pressure limits. It is capable of handling extreme temperature, aggressive media, high surface speeds, and can even run dry. The soft seal OD eliminates damage to housings manufactured from expensive metals. An integrated O-ring on the OD of the seal serves as an anti-rotation device and provides positive static sealing between the seal and the bore. Typical applications are dust/dirt excluders, balanced spindles, conveyers. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	30psi (2bar)	40psi (2.7bar)	-58 to 400°F (-50 to 200°C)	Up to 10,000 fpm (50m/s)	standard oil lubrication, high waterbased fluids	YES	4.4
Permachem 6235	30psi (2bar)	40psi (2.7bar)	-58 to 400°F (-50 to 200°C)	Up to 10,000 fpm (50m/s)	Soft shaft material, gaseous media, FDA compliant	YES	4.4
Duraloy 4736	30psi (2bar)	40psi (2.7bar)	-58 to 400°F (-50 to 200°C)	Up to 10,000 fpm (50m/s)	low wear and abrasion, long service life	YES	4.4

Compare

SB30

Single-lip spring-loaded PTFE rotary shaft seal

The spring-loaded lip design allows the seal to accommodate low rpm shaft runout or coaxial misalignment up to 0.020″ and high surface speeds. It is capable of handling extreme temperature, aggressive media, higher surface speeds, low to medium pressures, and can even run dry. The soft seal OD eliminates damage to housings manufactured from expensive metals. An integrated O-ring on the OD of the seal serves as an anti-rotation device and provides positive static sealing between the seal and the bore. Typical applications are gearboxes, mixers, and augers. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 2,500 fpm (12.5m/s)	standard oil lubrication, high waterbased fluids	YES	5
Permachem 6235	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 2,500 fpm (12.5m/s)	Soft shaft material, gaseous media, FDA compliant	YES	5
Duraloy 4736	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 2,500 fpm (12.5m/s)	low wear and abrasion, long service life	YES	5

Compare

SB11

Flanged single-lip PTFE rotary shaft seal

This flanged seal design incorporates a formed seal lip for low lip load and low friction and is capable of handling aggressive media, dry run, and low to medium pressures. The soft OD eliminates damage to housings, and the flange serves as an anti-rotation device where the media being sealed precludes the use of an elastomer. It is typically used to provide a low friction solution and as a secondary seal in a purging or ported system. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	110psi (7.6bar)	300psi (20bar)	-80 to 400°F (-60 to 200°C)	Up to 5,000 fpm (25m/s)	standard oil lubrication, high waterbased fluids	YES	5
Permachem 6235	110psi (7.6bar)	300psi (20bar)	-80 to 400°F (-60 to 200°C)	Up to 5,000 fpm (25m/s)	Soft shaft material, gaseous media, FDA compliant	YES	5
Duraloy 4736	110psi (7.6bar)	300psi (20bar)	-80 to 400°F (-60 to 200°C)	Up to 5,000 fpm (25m/s)	low wear and abrasion, long service life	YES	5

Compare

SB10R

Extreme temperature single-lip PTFE rotary shaft seal

This high-performance seal design incorporates a formed seal lip for low lip load and low friction. A metallic thermal control ring provides dimensional control under thermal cycling conditions. This seal is capable of handling aggressive media, dry run, high surface speeds and low to medium pressures. The soft OD eliminates damage to housings, and the integrated O-ring on the OD of the seal serves as an anti-rotation device and maximizes static sealing between the seal and the bore. This seal is available in smaller quantities without tooling requirements. It is typically used to provide a low leak, low friction solution for gearboxes and environmental seals….

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 5,000 fpm (25m/s)	standard oil lubrication, high waterbased fluids	YES	5
Permachem 6235	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 5,000 fpm (25m/s)	Soft shaft material, gaseous media, FDA compliant	YES	5
Duraloy 4736	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 5,000 fpm (25m/s)	low wear and abrasion, long service life	YES	5

Compare

SB12R

Extreme temperature single-lip PTFE rotary shaft seal for higher sealability

Design incorporates a formed seal lip with an “elf-toe” design offering extended runout and improved sealability, for abrasive media or gaseous media, due to the slightly higher lip load. A metallic thermal control ring provides dimensional control under thermal cycling conditions. Capable of handling extreme temperature, abrasive media, high surface speeds, low to medium pressures, and can even run dry. Soft OD eliminates damage to housings manufactured from expensive metals. Integrated O-ring on the OD of the seal serves as an anti-rotation device and provides positive static sealing between the seal and the bore. Typically used for a high sealability solution for…

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 4,000 fpm (20m/s)	standard oil lubrication, high waterbased fluids	YES	5
Permachem 6235	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 4,000 fpm (20m/s)	Soft shaft material, gaseous media, FDA compliant	YES	5
Duraloy 4736	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 4,000 fpm (20m/s)	low wear and abrasion, long service life	YES	5

Compare

SB20R

Extreme temperature low friction single-lip PTFE rotary shaft seal

This machined low torque seal lip design extends seal life within its pressure limits. A metallic thermal control ring provides dimensional control under thermal cycling conditions. It is capable of handling extreme temperature, aggressive media, high surface speed , low pressure and can even run dry. The soft seal OD eliminates damage to housings manufactured from expensive metals. An integrated O-ring on the OD of the seal serves as an anti-rotation device and provides positive static sealing between the seal and the bore. Typical applications are dust/dirt excluders, balanced spindles, and conveyers. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	30psi (2bar)	40psi (2.7bar)	-58 to 400°F (-50 to 200°C)	Up to 10,000 fpm (50m/s)	standard oil lubrication, high waterbased fluids	YES	4.4
Permachem 6235	30psi (2bar)	40psi (2.7bar)	-58 to 400°F (-50 to 200°C)	Up to 10,000 fpm (50m/s)	Soft shaft material, gaseous media, FDA compliant	YES	4.4
Duraloy 4736	30psi (2bar)	40psi (2.7bar)	-58 to 400°F (-50 to 200°C)	Up to 10,000 fpm (50m/s)	low wear and abrasion, long service life	YES	4.4

Compare

SB30R

Extreme temperature spring-loaded single-lip PTFE rotary shaft seal

The spring-loaded lip design allows the seal to accommodate low rpm shaft runout or coaxial misalignment up to 0.020″. A metallic thermal control ring provides dimensional control under thermal cycling conditions. It is capable of handling extreme temperature, aggressive media, higher surface speeds, low to medium pressures, and can even run dry. The soft seal OD eliminates damage to housings manufactured from expensive metals. An integrated O-ring on the OD of the seal serves as an anti-rotation device and provides positive static sealing between the seal and the bore. Typical applications are gearboxes, mixers, and augers. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 2,500 fpm (12.5m/s)	standard oil lubrication, high waterbased fluids	YES	5
Permachem 6235	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 2,500 fpm (12.5m/s)	Soft shaft material, gaseous media, FDA compliant	YES	5
Duraloy 4736	110psi (7.6bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 2,500 fpm (12.5m/s)	low wear and abrasion, long service life	YES	5

Compare

Application-specific and proprietary seal designs are available. Please contact engineering to get the best seal for your rotary sealing applications.

High-Performance Rotary Seals

Rotaflon™ SB-Series – up to 750psi; PV-Rating: 8.0 to 10.0

Typical Applications

-Sealing pressure from one side

-Pumps, motors, compressors, machine tools, brakes, clutches, mixers and others.

Operating Range

Pressure: up to 500psi (35bar)* continuous, up to 750psi (50bar)* max. pressure spikes. For pressures exceeding 60psi (4bar), please contact engineering.

Surface Speed: up to 3,500fpm (17.5m/s)* at lower pressure

Temperature: -58 to 400°F (-50 to 200°C)* depending on seal material

PV-Rating: 8.0 to 9.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: Proprietary composite materials

Availability: More info…

Most standard, non-standard, and application-specific designed SB-rotary shaft seals, in inch or metric sizes, are available with a 1-2 week turnaround. Expediting service available.

SB40

Double-lip PTFE rotary shaft seal

The redundant seal lips enable this seal to handle higher pressure and create additional sealing capabilities, especially under flooded conditions. The soft OD eliminates damage to housings manufactured from expensive metals, and the integrated O-ring on the OD of the seal serves as an anti-rotation device and maximizes static sealing between the seal and the bore. Typically used for hydraulic motors, pumps, and transmissions. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	200psi (14bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	standard oil lubrication, high waterbased fluids	YES	8
Permachem 6235	200psi (14bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	Soft shaft material, gaseous media, FDA compliant	YES	8
Duraloy 4736	200psi (14bar)	300psi (20bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	low wear and abrasion, long service life	YES	8

Compare

SB10HP

High-pressure single-lip PTFE rotary shaft seal

This seal design incorporates an anti-extrusion and support ring geometrically matched to the primary seal lip. This seal is capable of handling higher pressures, extreme temperatures, aggressive media, high surface speeds, and can even run dry. Fits in the same hardware pocket as SB40 Style. An integrated O-ring on the OD of the seal serves as an anti-rotation device and maximizes static sealing between the seal and the bore. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	500psi (35bar)	750psi (50bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	standard oil lubrication, high waterbased fluids	YES	10
Permachem 6235	500psi (35bar)	750psi (50bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	Soft shaft material, gaseous media, FDA compliant	YES	10
Duraloy 4736	500psi (35bar)	750psi (50bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	low wear and abrasion, long service life	YES	10

Compare

SB10HPR

Extreme temperature high-pressure single-lip PTFE rotary shaft seal

This seal design incorporates an anti-extrusion and support ring geometrically matched to the primary seal lip. This seal is capable of handling higher pressures, extreme temperatures, aggressive media, high surface speeds, and can even run dry. A metallic thermal control ring provides dimensional control under thermal cycling conditions. An integrated O-ring on the OD of the seal serves as an anti-rotation device and maximizes static sealing between the seal and the bore. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	500psi (35bar)	750psi (50bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	standard oil lubrication, high waterbased fluids	YES	10
Permachem 6235	500psi (35bar)	750psi (50bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	Soft shaft material, gaseous media, FDA compliant	YES	10
Duraloy 4736	500psi (35bar)	750psi (50bar)	-58 to 400°F (-50 to 200°C)	Up to 3,500 fpm (17.5m/s)	low wear and abrasion, long service life	YES	10

Compare

SB41

Flanged double-lip PTFE rotary shaft seal

This flanged seal design incorporates redundant seal lips that provide higher pressure and better sealing capabilities, especially under flooded conditions. The soft OD eliminates damage to housings, is capable of handling extreme temperatures, aggressive media, high surface speeds, low to medium pressures, and can even run dry. The soft seal OD eliminates damage to housings manufactured from expensive metals, and the flange serves as an anti-rotation device where media being sealed precludes the use of an elastomer. It is typically used to provide, high-pressure solution and as a secondary seal in a purging or ported system. Small quantities are available in 2-4 days.

Operating Range

Material	Continuous Pressure	Max.Pressure Spike	Temperature	Surface Speed	Application	Dry-run	PV-Rating
Permachem 6233	200psi (14bar)	300psi (20bar)	-80 to 400°F (-60 to 200°C)	Up to 3,500 fpm (17.5m/s)	standard oil lubrication, high waterbased fluids	YES	8
Permachem 6235	200psi (14bar)	300psi (20bar)	-80 to 400°F (-60 to 200°C)	Up to 3,500 fpm (17.5m/s)	Soft shaft material, gaseous media, FDA compliant	YES	8
Duraloy 4736	200psi (14bar)	300psi (20bar)	-80 to 400°F (-60 to 200°C)	Up to 3,500 fpm (17.5m/s)	low wear and abrasion, long service life	YES	8

Compare

Application-specific and proprietary seal designs are available. Please contact engineering to get the best seal for your rotary sealing applications.

*Maximum values depend on seal material, seal configuration, media, temperatures, pressures, surface speed and working environment. For maximum seal life expectancy, do not operate your seal beyond 75% of any of its operating limits. Please consult engineering or call 1-800-283-7140 for advice.

**In corrosive media or extreme low temperatures, the elastomer o-ring can be protected from the media or replaced by incorporating a spring–energized seal design in the outside seal diameter of the seal. Please consult engineering or call 1-800-283-7140 for advice.

American High Performance Seals assumes no obligation or liability for any advice furnished or results obtained with respect to these products. All such advice is given and accepted at the buyer’s risk.

This information, based on our experience, is offered as part of our service to customers. It is intended for use by persons having technical skill, at their own discretion and risk. We do not guarantee favorable results, and we assume no liability in connection with its use.

High-Performance Rotary Seals

Rotaflon™ SB-Series

Capabilities Rotaflon™ SB–Series:

Our Rotaflon™ SB-Series are categorized as follows:

Calculate the PV-Rating of the seal required for your application using calculator below:

High-Performance Rotary Seals

Rotaflon™ SB-Series – up to 300psi – PV-Rating: 4.0 to 5.0

SB10

SB12

SB20

SB30

SB11

SB13S

SB15

SB10R

SB12R

SB20R

SB30R

High-Performance Rotary Seals

Rotaflon™ SB-Series – up to 750psi; PV-Rating: 8.0 to 10.0

SB40

SB10HP

SB10HPR

SB41

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