UCFB 204

UCFB 204 Flange Bearing
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Overview

Part Number UCFB 204
Brand: LILY Brand: LILY Interchangeable With: SKF
Product Type Ball bearing units
Manufacturer SKF

Characteristics

System of Measurement Metric
Nominal Series System Metric
Housing Style 3-Bolt Bracket
Bearing Type Ball Bearing
Bore Type Cylindrical
Shaft Mount Type Set screws
Bearing Seal Type Contact, standard
Sealing solution Seal and flinger on both sides
Unit Sealing Arrangement Optional end cover
Number of Mounting Holes 3

Dimensions

Shaft Diameter 20 mm
Bore Dia 20 mm
Width of Inner Ring 31 mm
Whole Length 64 mm
Whole Width 31.8 mm
Overall Height 112 mm
Housing Width 25.5 mm
Attachment Bolt Diameter 8 mm
Mounting Hole Dia 9.5 mm
Hole Center to Center 32 mm
Hole Center to Center 2 27 mm
Distance face to thread centre 5 mm
Distance from Locking Device Side Face to Raceway Centre 18.3 mm
End Cover Projection 20.5 mm
Fastening Bolt Hole Type Plain
Flange Length 64 mm
Flange Width 8 mm
Grease Fitting Head Diameter 6.6 mm
Grease Fitting Hex Key Size 7.94 mm
Hex Key Size 3.05 mm
Housing Thread 1/4-28 UNF
Housing Thread Angular Position 45 °
Housing Thread Axial Position 16 mm
Outer Dia of Inner Ring 28.7 mm
Overall Bearing Width 31 mm
Recommended Diameter of Attachment Bolts G 8 mm
Recommended Inch-Series Attachment Bolt Diameter 7.9375 mm
Set Screw Thread Size M6x1
Spherical Seat Radial Position 42 mm

Material

Bearings Material Bearing steel
Coating Without
Housing Material Cast iron

Performance

Dynamic Load Rating 12.7 kN
Static Load Rating 6.7 kN
Fatigue Load Limit 0.285 kN
Max Speed 6500 rpm
Screw Tightening Torque 4 N·m

Properties

Lubricant Grease
Relubrication Hole With
Greasenipple With
Thread of Grease Fitting 1/4-28 UNF
RubberRing Without
Application Field For material handling applications
Standards Met JIS
Weight 0.59 kg

Design Features of UCFB 204 Bearing

UCFB 204 feature an integrated bearing insert and a flanged housing that allows direct mounting onto vertical or side surfaces for precise shaft positioning. The flanged design ensures secure alignment and stable load distribution, even in compact or space-limited installations. Sealed constructions and durable housing materials enhance protection against contaminants and extend service life in industrial environments.


What Benefits Can UCFB 204 Bearing Provide?

  • Compact and Space-Saving Design: The flanged housing allows direct mounting to equipment frames or walls, making it ideal for installations with limited space.
  • Accurate Shaft Positioning: The flange structure helps maintain precise axial and radial alignment, improving operational stability and reducing vibration.
  • Easy Installation and Secure Mounting: Pre-drilled mounting holes enable quick installation while ensuring firm and reliable fixation.
  • Good Load Support Capability: Flange bearings can handle radial loads and moderate axial loads, suitable for a wide range of light to medium-duty applications.
  • Low Maintenance and Long Service Life: Sealed designs and robust materials protect against dust and contaminants, minimizing maintenance requirements and extending bearing life.


What Can UCFB 204 Bearing Be Used for?

  • Conveyor and Transfer Systems: They support shafts mounted on vertical or side panels, ensuring accurate alignment in compact conveyor layouts.
  • Packaging and Automation Equipment: Widely applied in automated production lines where precise positioning and space efficiency are critical.
  • Food and Beverage Processing Machinery: Used in equipment requiring hygienic designs and stable shaft support, often with stainless steel housings.
  • Material Handling and Light Industrial Machinery: Suitable for guides, rollers, and auxiliary shafts operating under moderate loads.
  • Agricultural and General Machinery: Applied in pumps, fans, and small mechanical systems where reliable, easy-to-mount bearing solutions are required.

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