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TS (Single Row Tapered Roller Bearings) (Imperial) 5577-5521

TS (Single Row Tapered Roller Bearings) (Imperial) 5577-5521

The 5577-5521 is a single-row tapered roller bearing with a 2.125″ bore and 5.1181″ outer diameter, crafted from robust chrome steel. It handles combined loads up to 53,200 lbf radially and 8,460 lbf in thrust, making it suitable for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for use in industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 6.7 lb, it’s built to last while meeting RoHS and REACH standards for safety and compliance. The standard radial clearance ensures easy installation and maintenance.

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Product Parameters

  • Part Number 5577-5521
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 5.1181" x 1.7499"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.1181"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.723"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.4375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.7499"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.050"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.64"
  • Cone Backface Backing Diameter 2.72"
  • Cup Frontface Backing Diameter 4.67"
  • Cup Backface Backing Diameter 4.29"
  • Cage Cone Frontface Clearance 0.08"
  • Cage Cone Backface Clearance 0.07"
  • Effective Center Location -0.48"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 5577
  • Cup Part Number 5521
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 5500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 53200 lbf
  • Static Radial Load 73500 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 13800 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 8460 lbf
  • Lubrication Required
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant
  • Weight 6.700 lb

Features

How Does 5577-5521 Bearing Handle Combined Loads?

5577-5521 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 53,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Application

Industrial Uses of 5577-5521 Bearing
You’ll often spot 5577-5521 Bearing in heavy machinery like construction equipment, where its tapered roller design handles both radial and thrust loads effortlessly. The chrome steel construction means it stands up well to tough working conditions.

In automotive applications, 5577-5521 Bearing works brilliantly in wheel hubs and differential systems, thanks to its combined load capacity. The imperial sizing makes it a straightforward replacement for many American-made vehicles.

For industrial gearboxes, 5577-5521 Bearing’s single-row design offers reliable performance without complicating maintenance. Its standard radial clearance provides a good balance between precision and durability in most scenarios.

Where Is 5577-5521 Bearing Used?
If you’re working with agricultural machinery, 5577-5521 Bearing frequently appears in tractor transmissions and PTO shafts. Its robust construction handles the dust and vibrations common in farm environments.

The bearing also pops up in mining equipment, where its dynamic load rating keeps conveyor systems running smoothly. Steel cage material ensures it can take the knocks of abrasive environments.

Built for Heavy-Duty Use: 5577-5521 Bearing
This bearing shines in forestry equipment like log splitters, where sudden load changes are common. The tapered rollers distribute forces evenly, preventing premature wear.

You’ll appreciate how 5577-5521 Bearing performs in railway applications too. Its temperature range covers both freezing winters and hot summers, making it versatile for track maintenance vehicles.

Automotive vs Aerospace: Applications of 5577-5521 Bearing
While 5577-5521 Bearing suits truck axles perfectly, its ABEC-1 rating makes it less ideal for precision aerospace uses. It’s better matched to heavy ground vehicles where reliability trumps ultra-high precision.

The bearing finds a sweet spot in industrial pumps and compressors, where its standard clearance handles moderate speeds well. Just remember it needs proper lubrication for best performance in these continuous-operation machines.

Q&A

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