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TS (Single Row Tapered Roller Bearings) (Imperial) 45287-45221

TS (Single Row Tapered Roller Bearings) (Imperial) 45287-45221

The 45287-45221 is a single-row tapered roller bearing with a 2.125″ bore and 4.125″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 34500 lbf radially and 5090 lbf thrust, making it versatile for various applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. 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 industrial machinery or automotive systems where combined loads are common.

Weighing 2.5 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 45287-45221
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 4.125" x 1.1875"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.2188"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.44"
  • Cone Backface Backing Diameter 2.44"
  • Cup Frontface Backing Diameter 3.94"
  • Cup Backface Backing Diameter 3.74"
  • Cage Cone Frontface Clearance 0.1"
  • Cage Cone Backface Clearance 0.07"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 45287
  • Cup Part Number 45221
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 45200
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 34500 lbf
  • Static Radial Load 42600 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 8930 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5090 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 2.5 lb

Features

Performance Features of 45287-45221 Bearing

45287-45221 Bearing is constructed with chrome steel rings and rollers, offering robust resistance to combined loads.
Its dynamic radial load capacity reaches 34,500 lbf, ensuring reliable operation in demanding conditions.
The steel cage maintains roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs well in various environments.

How Does 45287-45221 Bearing Reduce Friction?

45287-45221 Bearing’s tapered roller design minimises friction, promoting smooth and efficient rotation.
The chrome steel rollers and cage work together to distribute loads evenly, reducing wear.
Its standard radial clearance ensures optimal performance without excessive heat generation.
This design makes it suitable for applications requiring both radial and thrust load handling.

Built for Reliability: 45287-45221 Bearing

45287-45221 Bearing’s single-row construction provides stability and precision under heavy loads.
The chrome steel materials resist wear, extending the bearing’s service life significantly.
With a static radial load capacity of 42,600 lbf, it handles demanding industrial tasks.
Its open design allows for easy lubrication, maintaining performance over time.

Steel vs Ceramic Bearings: Strengths of 45287-45221 Bearing

45287-45221 Bearing uses chrome steel for both rollers and rings, offering excellent durability.
This material choice ensures cost-effective performance without compromising on strength.
The bearing’s ABEC-1 rating guarantees consistent precision in various applications.
Its standard radial clearance options provide flexibility for different operational needs.

Why Choose 45287-45221 Bearing for Precision Tasks?

45287-45221 Bearing’s tapered roller design ensures accurate load distribution and alignment.
The precise tolerances on bore and outer diameters enhance its fit and performance.
With a dynamic thrust rating of 5,090 lbf, it handles both radial and axial loads effectively.
Its steel cage construction maintains roller positioning, crucial for precision applications.

Application

Industrial Uses of 45287-45221 Bearing
The 45287-45221 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 45287-45221 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a preferred choice for North American vehicle models.

For industrial conveyor systems, 45287-45221 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability, making it suitable for continuous operation.

Where Is 45287-45221 Bearing Used?
You’ll often find 45287-45221 Bearing in agricultural machinery, where its robust design handles rough terrain and heavy loads. The tapered rollers distribute stress evenly, reducing wear over time.

In manufacturing plants, 45287-45221 Bearing supports rotating equipment like gearboxes and pulleys. Its standard radial clearance ensures smooth operation without frequent adjustments.

Built for Heavy-Duty Use: 45287-45221 Bearing
45287-45221 Bearing excels in forestry equipment, where its combined load capacity manages both radial and thrust forces. The chrome steel rollers resist deformation under pressure.

For railway applications, 45287-45221 Bearing’s ABEC-1 rating provides consistent performance in freight car axles. Its temperature range suits both cold and moderate climates.

Automotive vs Aerospace: Applications of 45287-45221 Bearing
In automotive systems, 45287-45221 Bearing is ideal for truck transmissions, balancing speed and load requirements. The imperial measurements align with standard replacement parts.

For aerospace ground support equipment, 45287-45221 Bearing offers reliability in maintenance tools. Its steel cage withstands frequent use without compromising performance.

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