Bearing 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)

Ammonium Hydroxide

Calcium Hydroxide

Bore Diameter

Material

Molybdenum Disulfide

Silicon Carbide

Stainless Steel

Rod Diameter

Maximum Rotation Speed

For Sealing

Loaded Type

For Shaft Motion

Maximum Pressure

Less than 100 psi

100 psi to 249 psi

250 psi to 299 psi

300 psi to 999 psi

1,000 psi or greater

Color

Maximum Temperature

Less than 200° F

200° F to 224° F

225° F to 249° F

250° F to 299° F

300° F or greater

Hardness

For Cylinder Type

Hardness Rating

For Minimum Bore Width

Rotation Speed

Less than 2,000 rpm

2,000 rpm to 2,999 rpm

3,000 rpm to 9,999 rpm

10,000 rpm to 19,999 rpm

20,000 rpm or greater

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

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889 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

Spring-Loaded Rotary Shaft Seals with Wiper Lip

Spring-Loaded Rotary Shaft Seals with Wiper Lip

The secondary lip blocks contaminants

Shaft-Mounted Rotary Shaft Seals

Shaft-Mounted Rotary Shaft Seals

Block dust and other contaminants to protect shaft bearings

Rotary Shaft Seals for Grease

Rotary Shaft Seals for Grease

Retain thick lubricant at low pressure

Spring-Loaded Rotary Shaft Seals

Spring-Loaded Rotary Shaft Seals

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

Heavy Duty Shaft-Mounted Rotary Shaft Seals

Heavy Duty Shaft-Mounted Rotary Shaft Seals

Made of fluoroelastomer for excellent chemical resistance and temperatures up to 390° F

Split Rotary Shaft Seals

Split Rotary Shaft Seals

Swap out old seals without disassembling components

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

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 for Misaligned Shafts

Spring-Loaded Rotary Shaft Seals for Misaligned Shafts

With an extended lip, seals flex to accommodate shaft misalignment

Cartridge Mechanical Shaft Seals

Cartridge Mechanical Shaft Seals

The seal and seat are already assembled for fast installation

Narrow-Profile Mechanical Pump Shaft Seals with Extended Spring

A smaller seal OD than standard seals

Mechanical Pump Shaft Seals with Compact Spring

Mechanical Pump Shaft Seals with Compact Spring

Built with short springs for small circulation and dispensing pumps

Heavy Duty Mechanical Pump Shaft Seals

Heavy Duty Mechanical Pump Shaft Seals

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

Mechanical Pump Shaft Seals

Mechanical Pump Shaft Seals

Commonly used in well, sump, and displacement pumps

Other Products

U-Cup Seals

With a lip on both the inside and outside edges, they can be used for sealing rods and pistons

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Hydraulic Cylinder Seals

Hydraulic Cylinder Seals

Replace seals on the piston or rod end of hydraulic cylinders

Cylinder Rod Glands

Cylinder Rod Glands

Replace the rod gland on hydraulic cylinders

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