Rockwell Automation W-Series Brushless Servo Motor - Manual (Page 19)

W-Series Motor Installation Instructions 19
Publication 1398-IN520A-EN-P — May 2001
To install a new shaft seal:
1. Remove shaft key, if provided.
2. Check the motor shaft and faceplate. Remove nicks and burrs.
3. Protect the seal lip from the sharp edges of the keyway. If necessary,
place masking tape over the keyway.
4. Position the seal on the shaft with the sealing lips positioned and
slanting outward as shown in Figure 5. If using a Viton shaft seal,
lubricant may be applied prior to seating the shaft seal. Do not use
lubricant with a Teflon shaft seal.
5. Use proper tooling to seat the shaft seal. Do not hammer directly on
shaft seal. Apply force evenly around the outer edge with a soft face
tool, arbor press, or a work piece made from soft wood.
6. Push shaft seal into motor just far enough so outer diameter of the seal
is flush with the front surface of the motor. This leaves a slight
clearance between the shaft seal and the motor bearing.
Figure 5
Teflon and Viton Shaft Seal Installation
Metal
hammer
Soft
face
hammer tool
Wood
Clearance
maintained
between shaft seal
and motor bearing.
tool
Exploded Views of
Correct Shaft Seal
Position
Viton shaft seal lips and opening face outward
(toward shaft)
Teflon shaft seal lips face outward (away from housing)