At a glance
UCP pillow block
A pedestal housing supports a shaft above a base surface.
Choose for base mounting with the specified shaft centre height and bolt spacing.
UCF flange unit
A square flange housing mounts around the shaft opening with four bolts.
Choose for mounting against a face with the required register, bolt pattern and support.
Key differences
Typical design distinctions. The complete designation and current product specification take precedence.
Swipe the table horizontally to see both options →
| What to compare | UCP pillow block | UCF flange unit |
|---|---|---|
| Mounting | Pedestal on a base | Square flange against a face |
| Fastening | Commonly two base bolts | Commonly four flange bolts |
| Key geometry | Centre height and base bolt spacing | Flange bolt spacing and pilot/face geometry |
| Insert | UC-style insert in common series | UC-style insert in common series |
| Shaft locking | Verify set-screw or specified execution | Verify set-screw or specified execution |
| Interchange | Not a direct housing substitution | Not a direct housing substitution |
Before you choose
- A 205 size designation does not guarantee every unit's bore; inch suffixes and variants exist.
- Check housing load direction and mounting support, not only the insert rating.
- Grease nipple access and seal clearance can affect installation.
Check the actual model
Search a full designation, inspect its technical data, then compare candidate records. Similar names or dimensions do not guarantee interchangeability.
Filters show recorded catalogue attributes. Open each candidate to confirm its exact specification.
A few things worth clarifying
Can UCP205 replace UCF205?
The insert may be related, but the housings mount differently and are not a direct bolt-on replacement.
Do matching inserts prove equal unit capacity?
No. Housing strength, load direction and the base or flange support must also be checked.
Reference basis & limits
- NTN — Bearing units: product types and mounting arrangements
Independent explanatory content; not a manufacturer endorsement or approval of a replacement. Verify current product data, fits, lubrication and operating conditions before applying a comparison.