WSTU 104S-FM

WSTU 104S-FM Take-Up Bearing
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Overview

Part Number WSTU 104S-FM
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 Eccentric collar
Bearing Seal Type Contact, standard
Sealing solution Seal on both sides
Unit Sealing Arrangement Optional end cover

Dimensions

Shaft Diameter 31.75 mm
Bore Dia 31.75 mm
Overall Height 102.4 mm
Housing Width 37.3 mm
Mounting Hole Dia 20.6 mm
Attachment End Face to Bearing Centre 69.9 mm
Attachment End Length 10.3 mm
Collar Diameter 44.1 mm
Distance Between Bottoms of Piloting Grooves 88.9 mm
Distance face to thread centre 5.95 mm
Distance from Locking Device Side Face to Raceway Centre 26.7 mm
End Cover Projection 22.5 mm
Grease Fitting Head Diameter 6.579 mm
Grease Fitting Hex Key Size 11.113 mm
Height of Attachment End 56.4 mm
Height of Attachment Slot 37.3 mm
Hex Key Size 3.969 mm
Housing Thread 1/8-27 NPT
Housing Thread Angular Position 30 °
Housing Thread Axial Position 1.1 mm
Length of Attachment Slot 15.9 mm
Length of Location Slot 57.2 mm
Overall Bearing Width 35.7 mm
Overall Width (L) 112.8 mm
Set Screw Thread Size 5/16-24 UNF
Shoulder Diameter Inner Ring (d1) 39.7 mm
Width of Piloting Groove 13.5 mm
Width of Piloting Groove Glange 27.8 mm

Material

Bearings Material Bearing steel
Coating Without
Housing Material Cast iron

Performance

Dynamic Load Rating 19.5 kN
Static Load Rating 11.2 kN
Fatigue Load Limit 0.475 kN
Max Speed 6300 rpm
Screw Tightening Torque 6.5 N·m

Properties

Lubricant Grease
Relubrication Hole With
Greasenipple With
Thread of Grease Fitting 1/8-27 NPT
RubberRing Without
Application Field For material handling applications
Standards Met North American standard
Weight 1.59 kg

Design Features of WSTU 104S-FM Bearing

WSTU 104S-FM 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 WSTU 104S-FM 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 WSTU 104S-FM 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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