Grease Seals | McMaster-Carr

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Product Family

Buffering Seals

Cushioning Seals

Cylinder Rod Glands

Flexible Shaft Couplings

Hydraulic Cylinder Seals

Shaft Repair Sleeves

Spring-Loaded Seals

System of Measurement

Seal ID

Seal OD

Seal Width

Shaft Diameter

For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Calcium Hydroxide

Bore Diameter

Material

Silicon Carbide

Stainless Steel

Rod Diameter

For Sealing

Color

Maximum Rotation Speed

For Shaft Motion

Loaded Type

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

OD

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 299° F

300° F to 399° F

400° F or greater

For Cylinder Type

Hardness

Hardness Rating

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

RoHS

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

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

1,034 Products

Shaft Seals

Rotary Shaft Seals for Grease

Rotary Shaft Seals for Grease

Retain thick lubricant at low pressure

Spring-Loaded Rotary Shaft Seals with Wiper Lip

Spring-Loaded Rotary Shaft Seals with Wiper Lip

The secondary lip blocks contaminants

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

Shaft-Mounted Rotary Shaft Seals

Shaft-Mounted Rotary Shaft Seals

Block dust and other contaminants to protect shaft bearings

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

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

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

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

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

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

Cushioning Seals

Cushioning Seals

Reduce wear and noise in air-powered cylinders by blocking the piston from hitting the cylinder body

Spring-Loaded Seals

Spring-Loaded Seals

Seal rods and pistons with a wider range of temperature and chemical resistance than U-cup seals

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Buffering Seals

Buffering Seals

Protect hydraulic cylinders from pressure spikes and shock in high-pressure applications

Hydraulic Cylinder Seals

Hydraulic Cylinder Seals

Replace seals on the piston or rod end of hydraulic cylinders

Shaft Repair Sleeves

Shaft Repair Sleeves

Cover worn shafts with a smooth and protective sealing surface without machining

Flexible Shaft Coupling Seal Kits

Flexible Shaft Coupling Seal Kits

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.)