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Alternate Products
- PB221 Series Normal-Duty Pillow Block
- 1 7/8" Shaft
- 6 9/32" Bolt Centers
- 2 1/4" Center Line to Base
- Eccentric Locking Collar
features
- Slotted bolt holes
- Races and balls are 52100 steel, hardened, ground, and honed for quiet operation
- Rugged cast iron or Hub-Alloy® housing
- Zone-hardened inner race
- Prelubricated with high quality lithium grease. 1/4-28 Zerk fitting provided to allow for relube
- Choice of narrow or wide inner race, setscrew locking or eccentric collar locking, normal-duty, or medium-duty bearings
- Knurled cup point setscrews at 120° to minimize inner ring distortion
- Recessed housing base to accommodate uneven mounting surfaces
- Spherical outer race to allow up to 1.5° misalignment
- All bearings have single lip Nitrile rubber seals with steel trash guard
- Steel fingers are standard on wide inner race bearings only
- Molded glass fiber reinforced polyamide retainer
- Grade 10 balls
| Base Width | 2 in |
| Inch/Metric | Inch |
| Length Through Bore | 1.72 in |
| Temperature Range [Max] | 225 °F |
| Base Height | 13/16 in |
| Bolt Hole Spacing Range [Max] | 6 3/4 in |
| Bolt Holes | 2 |
| Housing Construction | 1 Piece |
| Bolt Hole Spacing Range [Min] | 5 13/16 in |
| Bolt Hole Spacing | 6 9/32 in |
| Mounted Unit Duty | Normal-Duty |
| Collar O.D. | 2.733 in |
| Bolt Size | 5/8 in |
| Housing Material | Cast Iron |
| Insert Type | Steel Insert |
| Housing Width | 2 in |
| Lubrication | Relubricatable |
| Bearing Insert | B220X1 7/8 |
| Pillow Block Type | Thru-Bolt |
| Overall Width | 2 9/32 in |
| Misalignment Range | ±1 1/2° |
| Series | PB221 |
| Bearing Design | Non-Expansion |
| Base Length | 8 3/8 in |
| Center of Bearing to Front of Inner Ring | 1.287 in |
| Locking Device | Eccentric Locking Collar |
| Seal Type | Contact Seals |
| Shaft Dia. | 1.875 in |
| Bearing Type | Ball Bearing |
| End Type | Open End |
| Housing Height | 4 1/2 in |
| Temperature Range [Min] | -25 °F |
| Weight | 6.1 LB |
| EAN or UPC | 662798247847 |
