UCT321

UCT321 Take-Up Bearing
$806.34 /Each    info

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Overview

Part Number UCT321
Brand: LILY Brand: LILY Interchangeable With: AMI
Bearing Part Number UC321
Housing Part Number T321
Product Series UCT300

Characteristics

System of Measurement Metric
Housing Style Take-Up Bearing Units
Bearing Type Ball Bearing
Bearing Duty Heavy Duty
Expansion Type Non-Expansion Bearing (Fixed)
Inner Ring Type Wide Inner Ring
Shaft Mount Type Set Screw Locking
Bearing Seal Type Double Sealed

Dimensions

Shaft Diameter 105 mm
Bore Dia 105 mm
Outside Diameter 175 mm
Bearing Width 112 mm
Width of Inner Ring 4.4100 in, 112 mm
Whole Length 290 mm
Overall Height 290 mm
Housing Height 75 mm
Center Height 210 mm
Pillow Height 32 mm
Hole Center to Center 1 260 mm
Hole Center to Center 2 120 mm
Bore Dia Tolerance -0.0005" to 0"
Height of Attachment Slot 115 mm
Hole Width 59 mm
Length of Attachment Slot 48 mm
Length of Location Slot 105.5 mm
Width of Piloting Groove 35 mm
Width with Locking 200 mm

Material

Bearings Material AISI 52100 Steel
Housing Material Iron

Performance

Temperature Range -30° to 110 °C

Properties

Lubrication Required
Lubrication Fitting Tap 1/8-27 NPT
RoHS Compliant
REACH Compliant
Weight 30.57 kg

What does UCT321 mean?

UCT321 is an AMI metric iron take-up unit with a wide inner ring insert and set screw locking, for a 105 mm shaft. The part number breaks down into 4 segments:

UC
Wide inner ring ball bearing insert, set screw locking, spherical outer ring. Insert part number is UC321
T
Housing style: iron take-up. Housing part number is T321
3
300 series (heavy duty)
21
Bore code: 21 × 5 = 105 mm

Note: For metric mounted bearings, the bore is usually the bore code × 5 mm. Codes 00, 01, 02 and 03 are the exceptions: 10, 12, 15 and 17 mm.

Frequently asked questions

What does UCT321 mean?

UCT321 is an AMI metric iron take-up unit with a wide inner ring insert and set screw locking, for a 105 mm shaft. UC = wide inner ring ball bearing insert, set screw locking, spherical outer ring. Insert part number is UC321, T = housing style: iron take-up. Housing part number is T321, 3 = 300 series (heavy duty), 21 = bore code: 21 × 5 = 105 mm.

What is the bore size of UCT321?

The bore of UCT321 is 105 mm.

Design Features of UCT321 Bearing

UCT321 feature a robust bearing housing mounted on a sliding or adjustable frame, allowing the take-up bearing to move along a guide to maintain proper tension in belts, chains, or conveyors. The design typically includes sealed bearing inserts for protection against contaminants and durable materials to withstand continuous load and movement. Adjustable and self-aligning features ensure reliable operation, accurate alignment, and extended service life in dynamic industrial applications.


What Benefits Can UCT321 Bearing Provide?

  • Automatic or Adjustable Tensioning: They maintain proper tension in belts, chains, or conveyors, reducing slippage and improving operational efficiency.
  • Enhanced Shaft Support: The bearing housing provides stable support for moving or sliding shafts under continuous load.
  • Contamination Resistance: Sealed bearing inserts protect against dust, moisture, and debris, extending service life.
  • Easy Installation and Adjustment: The sliding or adjustable frame allows quick setup and fine-tuning without disassembling machinery.
  • Reliable Performance in Dynamic Applications: Designed to accommodate movement and misalignment, ensuring consistent operation in conveyors, material handling, and other industrial systems.


What Can UCT321 Bearing Be Used for?

  • Conveyor Systems: They maintain proper tension in belt and roller conveyors, ensuring smooth and efficient material transport.
  • Material Handling Equipment: Applied in systems where chain, rope, or belt tension must be adjusted dynamically for reliable operation.
  • Mining and Bulk Processing Machinery: Used in feeders, crushers, and screens to maintain consistent drive tension under heavy loads.
  • Agricultural and Food Processing Equipment: Support belts or chains in harvesters, conveyors, and packaging machinery where variable tension is required.
  • Industrial Fans and Mechanical Drives: Provide stable support and tensioning for overhung shafts or belt-driven systems in dynamic industrial environments.

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