Bellows Seals | McMaster-Carr

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276 Products

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

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

Mechanical Pump Shaft Seals with Compact Spring

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

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.

Expansion Joints

High-Temperature All-Metal
Expansion Joints with Flanged Ends

These all-metal expansion joints can handle high temperatures up to 800° F.

Expansion Joints with Sealing
Flanged Ends for Plastic Pipe

Expansion Joints with Sealing
Flanged Ends for Metal Pipe

Expansion Joints with Flanged Ends

The flanged ends on these expansion joints rotate for easy bolt hole alignment during installation.

Chemical-Resistant Expansion
Joints with Flanged Ends

The PTFE body on these expansion joints has a super-smooth surface that stands up to corrosive chemicals.

Expansion Joints with Flanged
Ends for High Vibration

These expansion joints have a double-bulb design for extra movement and vibration absorption.

Clamp-On Expansion Joints
for Drain, Waste, and Vent

These joints are designed for vertical use in drain, waste, and vent systems.

Clamp-On Expansion Joints

Slip these joints over your pipe ends and tighten the band clamps for a secure hold.

Expansion Joints with Butt-Weld Ends

These joints weld to unthreaded pipe or another butt-weld fitting for a leak-resistant permanent connection.

Mechanical Pump Shaft Seals

Mechanical Pump Shaft Seals with Extended Spring

Narrow-Profile Mechanical PumpShaft Seals with Extended Spring

Mechanical Pump Shaft Seals

Mechanical Pump Shaft Seals with Compact Spring

Heavy Duty Mechanical Pump Shaft Seals

Expansion Joints

High-Temperature All-MetalExpansion Joints with Flanged Ends

Expansion Joints with SealingFlanged Ends for Plastic Pipe

Expansion Joints with SealingFlanged Ends for Metal Pipe

Expansion Joints with Flanged Ends

Chemical-Resistant ExpansionJoints with Flanged Ends

Expansion Joints with FlangedEnds for High Vibration

Clamp-On Expansion Jointsfor Drain, Waste, and Vent

Clamp-On Expansion Joints

Expansion Joints with Butt-Weld Ends

Narrow-Profile Mechanical Pump
Shaft Seals with Extended Spring

High-Temperature All-Metal
Expansion Joints with Flanged Ends

Expansion Joints with Sealing
Flanged Ends for Plastic Pipe

Expansion Joints with Sealing
Flanged Ends for Metal Pipe

Chemical-Resistant Expansion
Joints with Flanged Ends

Expansion Joints with Flanged
Ends for High Vibration

Clamp-On Expansion Joints
for Drain, Waste, and Vent