UCF209 bearing
The UCF209 is a 4-bolt square flange mounted bearing unit with a 45 mm bore. It uses a sealed UC209 set-screw insert.
Size & specs
| Housing | 4-bolt square flange |
|---|---|
| Bore (shaft size) | 45 mm (1.772 in) |
| Insert | UC209 |
| Locking | Set screws |
Where to buy
Same insert, other housings
Same frame, other shaft sizes
Questions
What size shaft fits a UCF209?
A 45 mm shaft. The UC209 insert locks to the shaft with two set screws.
Can I replace just the insert?
Yes. Most UCF units take a standard UC209 insert, so you can swap the bearing and keep the housing if it isn't cracked or worn.