Taper Lock Bushings for HVAC Fan & Blower Applications
Fan and blower drives are sensitive to misalignment and imbalance. When a bushing is changed, preserve the correct hub/sheave interface and recheck the complete rotating drive after installation.
Where the bushing enters the drive
Recommended series to review
| Application / duty | EP series to review | Selection note |
|---|---|---|
| Compact sheaves | EP-1008 through EP-2517 | Review for small/medium shafts only when hub geometry matches. |
| Larger sheaves | EP-2012 through EP-4040 | Confirm drive power/speed, shaft/keyway and alignment. |
| XT hub family | EP-XTB35 through EP-XTB80 | Use with matching XT hub geometry. |
| QD serviceable hub | EP-SF-STL through EP-J-STL | Use where the existing sheave/hub is QD. |
Key selection criteria
| Selection variable | What to confirm |
|---|---|
| Shaft & keyway | Measure before removal. |
| Sheave/hub family | Identify Taper Lock, QD, XT or other interface. |
| Alignment | Record belt line and axial location. |
| Vibration issue | Do not assume the bushing is the only cause. |
| Access | Check room for tightening/removal fasteners. |
Model suggestions are starting points for an enquiry, not a substitute for checking shaft diameter, keyway, mating hub geometry and the drive requirement.