Pillow Block Units
UCP3 Series Pillow Block Units (Large Bore)
Larger-bore continuation of the standard cast iron pillow block range, using the wider 03-series bearing insert for higher load capacity than the UCP2 series at the same shaft diameter. The standard choice once a application's load rating outgrows the 02-series units.
Reference dimension diagram — see table below for exact values per size.
Dimensions & Part Numbers
| Shaft Dia. (mm) | Unit Number | L (Length) (mm) | H (Height) (mm) | A (Bolt Spacing) (mm) | B (Width) (mm) | Bolt Size | Bearing Insert No. |
|---|---|---|---|---|---|---|---|
| 25 | UCP305 | 175 | 45 | 45 | 38 | M14 | UC305 |
| 30 | UCP306 | 180 | 50 | 50 | 43 | M14 | UC306 |
| 35 | UCP307 | 210 | 56 | 56 | 48 | M14 | UC307 |
| 40 | UCP308 | 220 | 60 | 60 | 52 | M14 | UC308 |
| 45 | UCP309 | 245 | 67 | 67 | 57 | M16 | UC309 |
| 50 | UCP310 | 275 | 75 | 75 | 61 | M16 | UC310 |
| 55 | UCP311 | 310 | 80 | 80 | 66 | M16 | UC311 |
Dimensions and part numbers per manufacturer technical catalogue, set-screw locking type.
Request Quote for UCP3Typical Applications
- Higher-load conveyor and drive shafts
- Medium-to-heavy industrial machinery
- Applications sized out of the UCP2 series' load rating
- Fans, pumps and blowers on larger shaft diameters
Frequently Asked Questions
What sizes are available in the UCP3 series?
UCP3 units are available from 25mm – 55mm bore, as listed in the dimension table below. Each size has its own part number for ordering.
What is the housing material and locking type for UCP3?
UCP3 uses a cast iron housing with set screw locking, sourced from NTN, FAG, SKF, FYH, Asahi, DTC and SLS.
What is UCP3 typically used for?
Common applications include higher-load conveyor and drive shafts and medium-to-heavy industrial machinery, and similar general industrial shaft-support duties.
Need pricing on UCP3 units?
Share your shaft size and quantity — our technical team will confirm availability and pricing within one business day.