Labyrinth Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Shaft Diameter

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For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Calcium Hydroxide

Ethylene Glycol

Bore Diameter

Material

Silicon Carbide

Stainless Steel

Loaded Type

Maximum Rotation Speed

Maximum Pressure

Maximum Temperature

Spring Material

Stainless Steel

Case Material

Stainless Steel

Color

For Minimum Bore Width

Seat OD

Gasket Material

Hardness Rating

Manufacturer/Brand Equivalent

John Crane Type 1

John Crane Type 6

John Crane Type 6A

John Crane Type 8T

John Crane Type 21

Pac-Seal Type 8T

Pac-Seal Type 16

Pac-Seal Type 21

Pac-Seal Type 31

Pac-Seal Type 51

Pac-Seal Type 68

Sealol Type 43 CE Long

Sealol Type 43 CE Short

Sealol Type 43 CU Short

Sealol Type 60L

REACH

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Minimum Temperature

Hardness

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473 Products

Shaft Seals

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

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

Create a tight seal with the bore, even with a rough surface or in a split housing

Rotary Shaft Seals for Grease

Rotary Shaft Seals for Grease

Retain thick lubricant at low pressure

High-Speed Rotary Shaft Seals

High-Speed Rotary Shaft Seals

Work at least 25% faster than other rotary shaft seals thanks to a slippery PTFE surface

Spring-Loaded Rotary Shaft Seals with Wiper Lip

Spring-Loaded Rotary Shaft Seals with Wiper Lip

The secondary lip blocks contaminants

Mechanical Pump Shaft Seals with Extended Spring

Mechanical Pump Shaft Seals with Extended Spring

An extended spring accommodates variations in seal cavity length

Mechanical Pump Shaft Seals with Compact Spring

Mechanical Pump Shaft Seals with Compact Spring

Built with short springs for small circulation and dispensing pumps

Cartridge Mechanical Shaft Seals

Cartridge Mechanical Shaft Seals

The seal and seat are already assembled for fast installation

Spring-Loaded Rotary Shaft Seals

Spring-Loaded Rotary Shaft Seals

A spring secures the lip against the shaft to prevent messy leaks

Split Rotary Shaft Seals

Split Rotary Shaft Seals

Swap out old seals without disassembling components

Mechanical Pump Shaft Seals

Mechanical Pump Shaft Seals

Commonly used in well, sump, and displacement pumps

Heavy Duty Mechanical Pump Shaft Seals

Heavy Duty Mechanical Pump Shaft Seals

Multiple springs maintain the seal in agricultural, chemical, and mining pumps

Narrow-Profile Mechanical Pump Shaft Seals with Extended Spring

A smaller seal OD than standard seals

Spring-Loaded Rotary Shaft Seals for Misaligned Shafts

Spring-Loaded Rotary Shaft Seals for Misaligned Shafts

With an extended lip, seals flex to accommodate shaft misalignment

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)