BPP1-8
$3.69
/Each
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Overview |
|
| Part Number | BPP1-8 |
Brand: LILY  |
Interchangeable With: AMI |
| Bearing Part Number | B1-8 |
| Housing Part Number | PP3 |
Characteristics |
|
| System of Measurement | Inch |
| Bearing Type | Ball Bearing |
| Bearing Seal Type | Double Sealed |
| Inner Ring Type | Narrow Inner Ring |
| Mounted Type | Pillow Block Bearing |
| Shaft Mount Type | Set Screw Locking |
| Product Series | BPP200 |
Dimensions |
|
| Bore Dia | 0.5" |
| Bore Dia Tolerance | -0.0005" to 0" |
| Bearing Width | 0.866" |
| Hole Width | 0.3438" |
| Hole Length | 0.5" |
| Overall Height | 1.75" |
| Pillow Height | 0.125" |
| Center Height | 0.875" |
| Whole Length | 3.625" |
| Hole Ctr-to-Ctr Min | 2.5" |
| Hole Ctr-to-Ctr Max | 2.875" |
| Width of Inner Ring | 1" |
| Mounting Bolt Size | 0.3125" |
Material |
|
| Bearings Material | AISI 52100 Steel |
| Housing Material | Pressed Steel |
Performance |
|
| Stamping Load Limit | 300 lbf |
| Temperature Range | -30° to 110 °C |
Properties |
|
| RoHS | Compliant |
| REACH | Compliant |
| Lubrication | Required |
| Weight | 0.39 lbs |
Shaft retention is achieved through set screw locking in this pillow block bearing unit, which secures the shaft reliably against moderate loads and low-to-medium vibration — provided the shaft is of standard ground finish and the screws are correctly torqued — without damaging the shaft surface.
Two 0.3125 inch bolts fasten the the mounted bearing unit to the mounting surface, providing a secure and stable foundation that suits both new installations and direct replacement applications. This is a light-duty fastener size typically found on small-frame bearings supporting fine shafts, where mounting loads are minimal and space is restricted.
Why does this bearing use Set Screw Locking to secure the shaft?
Set screw locking works by tightening one or two hardened screws directly against the shaft surface, which makes it well suited to applications where shaft positioning is fixed and loads are moderate. Its main advantage over other shaft locking methods is simplicity and low cost, which matters most when quick installation and minimal tooling are the priority.How does the 0.3125 inch affect installation and compatibility?
The bolt size directly determines whether the pillow block bearing can be mounted onto an existing frame or structure without modification. A 0.3125 inch bolt corresponds to a compact hole pattern suited to small-frame, light-duty housings, so when replacing an existing unit, confirming this dimension ensures a drop-in fit. Mismatched bolt sizes may require redrilling the mounting surface or sourcing an adapter plate, adding time and cost to the installation.
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