Labyrinth Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Shaft Diameter

Seal Width

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Calcium Hydroxide

Bore Diameter

Loaded Type

Material

Silicon Carbide

Stainless Steel

Maximum Rotation Speed

Maximum Temperature

For Minimum Bore Width

Maximum Pressure

Spring Material

Stainless Steel

Case Material

Stainless Steel

Color

Gasket Material

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

Seat Material

Silicon Carbide

REACH

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Diaphragm Material

Fluoroelastomer

Viton® Fluoroelastomer

Minimum Temperature

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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

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

Rotary Shaft Seals for Grease

Rotary Shaft Seals for Grease

Retain thick lubricant at low pressure

Mechanical Pump Shaft Seals with Extended Spring

Mechanical Pump Shaft Seals with Extended Spring

An extended spring accommodates variations in seal cavity length

Spring-Loaded Rotary Shaft Seals with Wiper Lip

Spring-Loaded Rotary Shaft Seals with Wiper Lip

The secondary lip blocks contaminants

Spring-Loaded Rotary Shaft Seals

Spring-Loaded Rotary Shaft Seals

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

Cartridge Mechanical Shaft Seals

Cartridge Mechanical Shaft Seals

The seal and seat are already assembled for fast installation

Mechanical Pump Shaft Seals with Compact Spring

Mechanical Pump Shaft Seals with Compact Spring

Built with short springs for small circulation and dispensing pumps

Mechanical Pump Shaft Seals

Mechanical Pump Shaft Seals

Commonly used in well, sump, and displacement pumps

Split Rotary Shaft Seals

Split Rotary Shaft Seals

Swap out old seals without disassembling components

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

Heavy Duty Mechanical Pump Shaft Seals

Heavy Duty Mechanical Pump Shaft Seals

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

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