Allen-Bradley VPL-SSN, Installation Instructions Manual

4

Rockwell Automation Publication 2090-IN012E-EN-P - February 2019

Shaft Seal Kits

Replace the Shaft Seal

Follow these steps to replace the shaft seal.

1. Apply tape to the keyway opening so the edges do not damage the seal lip.

2. Lubricate the motor shaft and the inner lip of the shaft seal with lubricant that is 

supplied in the kit.

3. Center the shaft seal on the mounting surface of the motor and slide the shaft seal evenly 

onto the motor shaft.

See 

Shaft Seal Installation Clearances

 on 

page 5

 for the correct installation clearance of 

the shaft seal you are installing.

4. Press the shaft seal into the seal bore by applying one of the 

Shaft Seal Installation 

Methods

 on 

page 6

.

5. Visually inspect for irregularities in the shaft seal or an uneven alignment where the shaft 

seal contacts the motor.

Verify that the outer and inner circumference of the shaft seal is fully seated into 
position.

6. Verify that the shaft seal is installed to the correct installation clearance.

• If the shaft seal is installed too deep, it can become subject to excessive wear and 

require frequent replacement.

• If the shaft seal is installed too shallow, it can reduce the effectiveness of the 

protective seal.

IMPORTANT

Shaft seals require a lubricant to reduce wear. The lubricant is supplied with the 
shaft seal kits. Lubricate only the inner lip of the shaft seal. Do not lubricate the 
motor bore or outside diameter of the seal.

VPH-SST-F

xxx

 Shaft Seal

Back View of Shaft Seal

(motor facing)

Inside of Shaft Seal Lip

Inside of Shaft Seal Lip

VPS-SST-

xxxx

 Shaft Seal

MPS-SST-

xxxx

 Shaft Seal