| Expansion Type | NON-EXPANSION |
| Bolt Center-to-Center Length | 11-3/4 to 12-3/4 in |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Baldor Reliance Electric | DOD 042023 | P4B520-SFXT-308TT SAF-XT BEARINGS 042023 |
| | Baldor Reliance Electric | DOD 042414 | SP4B520-SAFS-307TT SAFS BEARINGS 042414 |
| | Baldor Reliance Electric | DOD 042022 | P4B520-SFXT-307TT SAF-XT BEARINGS 042022 |
| | Baldor Reliance Electric | DOD 042415 | SP4B520-SAFS-308TT SAFS BEARINGS 042415 |
