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- 4-Bolt Pillow Block
- Spherical Roller Bearing
- 3 7/16" Shaft
- 3 3/4" Base to Center
- 10 3/8" Bolt Centers
features
- Cast iron housing
- Four-bolt base
- Expansion
- Self-aligning
- Two spring locking collars
- Factory adjusted and sealed
| Size Code | B556 |
| Bolt Hole Spacing | 10 3/8 in |
| Housing Construction | 1 Piece |
| Temperature Range [Min] | -20 °F |
| Base Width | 4 3/4 in |
| Series | B22500 |
| Shaft Dia. | 3.4375 in |
| Overall Width | 5 5/16 in |
| Inch/Metric | Inch |
| Base Length | 13 13/16 in |
| Misalignment Range | ±2° |
| Center of Bearing to Front of Inner Ring | 2 21/32 in |
| Mounted Unit Duty | Heavy-Duty |
| Bolt Size | 3/4 in |
| Seal Type | Clearance Seals |
| RPM [Max] | 1650 rpm |
| Lubrication | Relubricatable |
| Base Height | 2 1/4 in |
| Length Through Bore | 5.3125 in |
| Bearing Type | Spherical Roller Bearing |
| Collar Extension | 15/16 in |
| Bearing Design | Expansion |
| Collar O.D. | 5 in |
| Bolt Holes | 4 |
| Housing Material | Cast Iron |
| Housing Width | 4 3/4 in |
| Pillow Block Type | Thru-Bolt |
| Bolt Hole Spacing - Width | 2.375 in |
| End Type | Open End |
| Center of Bearing to End of Cover | 3 in |
| Bolt Hole Spacing Range [Max] | 11 7/16 in |
| Temperature Range [Max] | 200 °F |
| Housing Height | 7 1/2 in |
| Bolt Hole Spacing Range [Min] | 9 5/16 in |
| Locking Device | Double Setscrew Locking Collars |
| Weight | 48.0 LB |
| EAN or UPC | 662327025830 |
