Bearings
Housed & Flanged Bearings
4 Bolt Flanged Bearings
Quick Code: BB-429556
UCF218-56 FK 4 Bolt Square Flanged Bearing with 3.1/2inch Bearing Insert
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Product Specification
Bore Size (d)
39.37mm = 3.1/2inch
Brand
FK
Hole Centre (J)
187mm
Overall Length (L)
235x235mm
Overall Unit Width
96.3mm
Reference
UCF218-56
Quick Order Code
BB-429556
Product Description
The UCF218-56 FK is a robust 3.1/2 inch (89mm) 4-bolt square flanged bearing unit designed for reliable performance in demanding industrial environments. This normal duty bearing combines durability with practical maintenance features, making it an ideal solution for various mechanical applications.
Key Features:
- Cast iron housing with four mounting holes for secure installation
- Integrated grease nipple for convenient re-lubrication
- Bearing insert with two precision grub screws for secure shaft mounting
- Modular design allows for cost-effective replacement of insert
- Large 3.1/2 inch (89mm) bore size suitable for heavy-duty applications
Technical Specifications:
- Bore Size: 3.1/2 inch (89mm / 39.37mm)
- Brand: FK
- Hole Centre: 187mm
- Overall Length: 235 x 235mm
- Unit Width: 96.3mm
Typical Applications:
- Agricultural machinery
- Conveyor systems
- Material handling equipment
- Food processing machinery
- Manufacturing production lines
- Construction and mining equipment
- Automotive and transportation machinery
The removable bearing insert allows for easy maintenance, enabling quick replacement without dismantling the entire unit, which reduces downtime and maintenance costs. Its versatile design makes it suitable for a wide range of industrial environments where reliable shaft support is critical.

