| Actual Bolt Center to Center | 0 Inch | 0Millimeter |
| Base to Center Height | 1.688 Inch | 42.875 Millimeter |
| Bolt Spacing Maximum | 4.969 Inch | 126.213Millimeter |
| Bolt Spacing Minimum | 4.563 Inch | 115.9Millimeter |
| Brand, Manufacturer Name | HUB CITY |
| Category | Pillow Block Bearings |
| Expansion / Non-expansion | Non-expansion |
| Global Part Number GPN | 519522 |
| Harmonized Tariff Code | 8483.20.40.40 |
| Housing Configuration | 1 Piece Solid |
| Housing Material | Cast Iron |
| Housing Style | 2 Bolt Pillow Block |
| Inch - Metric | Inch |
| Insert Part Number | B250R |
| Length Thru Bore | 1.181 Inch | 30 Millimeter |
| Mounting Bolts | 1/2 Inch |
| Mounting Method | Set Screw |
| Nominal Bolt Center to Center | 4.8 Inch | 121 Millimeter |
| Number of Mounting Holes | 2 |
| Other Features | Single Row | Spherical | High Base | Anti Rotation Pin | Has Trash Guard | Smaller Housing |
| price | $ 45.49 / each |
| Relubricatable | Yes |
| Seals | Nitrile Rubber |
| title | PB251UR X 1-1/4S |
| UNSPSC | 31171511 |
| Weight / LBS | 2.9 |
