P2B 203-SRB-SRH

P2B 203-SRB-SRH Pillow Block Bearing
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Overview

Part Number P2B 203-SRB-SRH
Brand: LILY Brand: LILY Interchangeable With: SKF
Product Type Roller bearing units
Manufacturer SKF
Bearing Part Number 22211

Characteristics

System of Measurement Metric
Nominal Series System Inch
Housing Style 2-Bolt Pillow Block
Bearing Type Spherical roller bearing
Bearing Duty Standard Duty
Bearing Position Locating
Expansion Type Non-Expansion Bearing (Fixed)
Bore Type Cylindrical
Shaft Mount Type Set screws
Bearing Housing Seal Type Radial lip seal
Seal Type Tri-Guard
Unit Sealing Arrangement Optional end cover
Number of Mounting Holes 2
Number of Set Screws 2

Dimensions

Shaft Diameter 55.563 mm
Length Through Bore 79.375 mm
Width of Inner Ring 79.375 mm
Whole Length 225.425 mm
Whole Width 81.756 mm
Housing Height 129.778 mm
Housing Width 60.325 mm
Center Height 63.5 mm
Attachment Bolt Diameter 15.875 mm
Hole Center to Center 177.006 mm
Hole Ctr-to-Ctr Min 163.513 mm
Hole Ctr-to-Ctr Max 187.325 mm
Axial Displacement (S) 0.794 mm
Base Width 2.3125 "
Bearing Centre to Inner Ring End (s) 28.575 mm
Bearing Mean Diameter 77.47 mm
Collar Diameter 81.575 mm
Foot Height 41.275 mm
Foot Width 60.325 mm
Length of Attachment Bolt Hole 30.956 mm
Overall Bearing Width 79.375 mm
Set Screw Thread Size 3/8-24 UNF-3A x 1/2"
Width Including End Cover (A5) 94.456 mm
Width of Attachment Bolt Hole 19.05 mm

Material

Bearings Material Bearing steel
Coating Without
Housing Material Cast iron

Performance

Dynamic Load Rating 109 kN
Static Load Rating 127 kN
Fatigue Load Limit 14 kN
Max Speed 3900 rpm
Limiting Value 0.24
Y0 2.8
Y1 2.8
Y2 4.2
Locking Mechanism Axial Holding Force 2.29 kN
Safe Housing Load (135 deg) 27.6 kN
Safe Housing Load (180 deg) 32.9 kN
Safe Housing Load (90 deg) 46.3 kN
Screw Tightening Torque 28.2 N·m

Properties

Lubricant Grease
Relubrication Hole With
Greasenipple With
Thread of Grease Fitting 1/8-27 NPT
Relubrication Grease Quantity 5 g
Weight 5.4 kg

Design Features of P2B 203-SRB-SRH Bearing

P2B 203-SRB-SRH Bearing integrate a robust housing with a precision-mounted bearing insert to provide reliable shaft support, simplified installation, and effective load distribution. Their self-aligning capability, sealed design, and durable materials enhance operational stability while reducing maintenance requirements. As a result, pillow block bearings are a practical and dependable solution for a wide range of industrial and material-handling applications.


What Benefits Can P2B 203-SRB-SRH Bearing Provide?

  • Easy Installation and Replacement: The integrated housing and bearing unit allows for quick mounting and straightforward replacement, reducing downtime and labor costs.
  • Self-Alignment Capability: Many pillow block bearings can accommodate initial misalignment, helping prevent premature wear and improving overall system reliability.
  • High Load-Carrying Capacity: The rigid housing supports both radial and moderate axial loads, making pillow block bearings suitable for demanding industrial applications.
  • Reduced Maintenance Requirements:Sealed or lubricated-for-life designs protect against contaminants, extending service life and minimizing routine maintenance.
  • Versatile Application Range: Available in multiple housing materials, bearing types, and mounting configurations, pillow block bearings can be adapted to a wide variety of operating environments and industries.


What Can P2B 203-SRB-SRH Bearing Be Used for?

  • Conveyor Systems: They support rotating shafts in belt and roller conveyors, ensuring smooth operation and stable load handling.
  • Material Handling Equipment: Widely used in packaging, sorting, and lifting machinery where reliable shaft support is required.
  • Agricultural Machinery: Applied in harvesters, seeders, and irrigation equipment due to their durability and tolerance to harsh environments.
  • Industrial Fans and Blowers: Provide stable support for fan shafts, helping reduce vibration and extend equipment life.
  • General Manufacturing Machinery: Used in mixers, crushers, woodworking machines, and other production equipment requiring robust and easy-to-maintain bearing solutions.

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