Labyrinth Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Shaft Diameter

Seal Width

Bore Diameter

For Use With

Diluted Salt Solutions

Acetic Acid (White Vinegar)

Loaded Type

For Minimum Bore Width

Material

Maximum Temperature

Maximum Pressure

Spring Material

Case Material

Color

Maximum Rotation Speed

Manufacturer/Brand Equivalent

Sealol Type 43 CE Long

Sealol Type 43 CE Short

Sealol Type 43 CU Short

Gasket Material

Seat Material

REACH

RoHS

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Diaphragm Material

Viton® Fluoroelastomer

Specifications Met

473 Products

Rotary Shaft Seals

Bore-Sealing Spring-Loaded
Rotary Shaft Seals with Wiper Lip

Ribbed Buna-N over steel creates a tight seal with the bore, even when mating with a rough surface or in a split housing.

Spring-Loaded Rotary Shaft Seals with Wiper Lip

These seals have a metal case that creates a tight seal when mating with smooth surfaces.

Spring-Loaded Rotary Shaft Seals

Also known as oil seals, use these to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft.

Spring-Loaded Rotary Shaft
Seals for Misaligned Shafts

Designed with an extended lip, these seals have the flexibility to accommodate shaft misalignment up to 0.125". They're also known as clipper seals.

Rotary Shaft Seals for Grease

Also known as grease seals, these are designed to retain thick lubricant at low pressure. They have a light grip on the shaft that creates less friction than spring-loaded seals.

High-Speed Rotary Shaft Seals

A slippery PTFE surface allows these seals to function at speeds at least 25% faster than other rotary shaft seals.

Split Rotary Shaft Seals

Swap out old seals without disassembling components—these seals come split for easy installation. They're also known as clipper seals.

Mechanical Pump Shaft Seals

Mechanical Pump Shaft Seals with Extended Spring

An extended spring on these seals accommodates variations in seal cavity length and pump misalignment.

Narrow-Profile Mechanical Pump
Shaft Seals with Extended Spring

With a smaller seal OD than standards seals, these seals have an extended spring that accommodates variations in seal cavity length.

Mechanical Pump Shaft Seals with Compact Spring

Built for small circulation and dispensing pumps, these seals have short springs.

Mechanical Pump Shaft Seals

These seals are commonly used in well, sump, and displacement pumps.

Heavy Duty Mechanical Pump Shaft Seals

Multiple internal springs ensure these seals keep the sealing surfaces in contact in demanding applications, such as agricultural, chemical, and mining pumps.

Cartridge Mechanical Seals

Install these seals faster and with less technical expertise than other mechanical shaft seals that come in two pieces. They come with their seal and seat already assembled.

Rotary Shaft Seals

Bore-Sealing Spring-LoadedRotary Shaft Seals with Wiper Lip

Spring-Loaded Rotary Shaft Seals with Wiper Lip

Spring-Loaded Rotary Shaft Seals

Spring-Loaded Rotary ShaftSeals for Misaligned Shafts

Rotary Shaft Seals for Grease

High-Speed Rotary Shaft Seals

Split Rotary Shaft Seals

Mechanical Pump Shaft Seals

Mechanical Pump Shaft Seals with Extended Spring

Narrow-Profile Mechanical PumpShaft Seals with Extended Spring

Mechanical Pump Shaft Seals with Compact Spring

Mechanical Pump Shaft Seals

Heavy Duty Mechanical Pump Shaft Seals

Cartridge Mechanical Seals

Cartridge Mechanical Seals

Bore-Sealing Spring-Loaded
Rotary Shaft Seals with Wiper Lip

Spring-Loaded Rotary Shaft
Seals for Misaligned Shafts

Narrow-Profile Mechanical Pump
Shaft Seals with Extended Spring