TU 3/4 TF

TU 3/4 TF Take-Up Bearing
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Overview

Part Number TU 3/4 TF
Brand: LILY Brand: LILY Interchangeable With: SKF
Product Type Ball bearing units
Manufacturer SKF

Characteristics

System of Measurement Metric
Nominal Series System Inch
Housing Style Take-Up
Bearing Type Ball Bearing
Expansion Type Non-Expansion Bearing (Fixed)
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

Dimensions

Shaft Diameter 19.05 mm
Bore Dia 19.05 mm
Width of Inner Ring 31 mm
Overall Height 92 mm
Housing Width 34 mm
Mounting Hole Dia 19 mm
Attachment End Face to Bearing Centre 62 mm
Attachment End Length 10 mm
Distance Between Bottoms of Piloting Grooves 76 mm
Distance face to thread centre 4.5 mm
Distance from Locking Device Side Face to Raceway Centre 18.3 mm
End Cover Projection 18.5 mm
Grease Fitting Head Diameter 6.5 mm
Grease Fitting Hex Key Size 7 mm
Height of Attachment End 54 mm
Height of Attachment Slot 32 mm
Hex Key Size 3.175 mm
Housing Thread 1/4-28 UNF
Housing Thread Angular Position 30 °
Housing Thread Axial Position 2.5 mm
Length of Attachment Slot 16 mm
Length of Location Slot 54 mm
Overall Bearing Width 31 mm
Overall Width (L) 97 mm
Set Screw Thread Size 1/4-28 UNF
Shoulder Diameter Inner Ring (d1) 28.2 mm
Width of Piloting Groove 13.5 mm
Width of Piloting Groove Glange 25 mm

Material

Bearings Material Bearing steel
Coating Without
Housing Material Cast iron

Performance

Dynamic Load Rating 12.7 kN
Static Load Rating 6.55 kN
Fatigue Load Limit 0.28 kN
Max Speed 8500 rpm
Screw Tightening Torque 4 N·m

Properties

Lubricant Grease
Relubrication Hole With
Greasenipple With
Thread of Grease Fitting 1/4-28 SAE-LT
RubberRing Without
Application Field For material handling applications
Standards Met ISO
Weight 0.906 kg

Design Features of TU 3/4 TF Bearing

TU 3/4 TF 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 TU 3/4 TF 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 TU 3/4 TF 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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