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TS (Single Row Tapered Roller Bearings) (Imperial) 45282-45221

TS (Single Row Tapered Roller Bearings) (Imperial) 45282-45221

The 45282-45221 is a single-row tapered roller bearing with a 1.875″ 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 easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for demanding environments.

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

Weighing 2.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 45282-45221
  • Brand TFL
  • Interchangeable Timken
  • Size 1.875" x 4.125" x 1.1875"
  • Bore Dia 1.875"
  • 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 0.14"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.24"
  • Cone Backface Backing Diameter 2.48"
  • 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 45282
  • 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 2.8 lb

Features

Performance Features of 45282-45221 Bearing

45282-45221 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 34,500 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 45282-45221 Bearing Engineered for Reliability?

45282-45221 Bearing features a single-row tapered roller design, providing stability under combined loads.
The chrome steel construction enhances durability, while the standard radial clearance allows for smooth operation.
Its dynamic thrust rating of 5,090 lbf ensures consistent performance in demanding environments.
The open seal type simplifies maintenance, reducing downtime.

Designed for Durability: 45282-45221 Bearing

45282-45221 Bearing’s chrome steel components resist wear, ensuring long service life.
The tapered roller design efficiently handles both radial and thrust loads, up to 42,600 lbf static radial load.
Its ABEC-1 rating guarantees precision, making it ideal for industrial applications.
The standard lubrication requirement ensures optimal performance with minimal upkeep.

Steel vs Ceramic Bearings: Strengths of 45282-45221 Bearing

45282-45221 Bearing uses chrome steel for both rollers and rings, balancing strength and cost-effectiveness.
The steel cage maintains roller alignment, reducing wear and improving efficiency.
With a dynamic radial rating of 8,930 lbf over 90 million revolutions, it offers reliable performance.
Its inch-based measurements make it compatible with imperial system machinery.

Application

Industrial Uses of 45282-45221 Bearing
45282-45221 Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.

Where Is 45282-45221 Bearing Used?
In automotive applications, 45282-45221 Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it a go-to choice for American-made vehicles.

Built for Heavy-Duty Use: 45282-45221 Bearing
This bearing excels in industrial gearboxes, where its single-row design simplifies maintenance and replacement. The steel cage adds extra strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 45282-45221 Bearing
While 45282-45221 Bearing is popular in truck axles, it also finds use in aircraft landing gear components. Its ABEC-1 rating ensures consistent performance across different industries.

Perfect Fit for Automation: 45282-45221 Bearing
In automated production lines, 45282-45221 Bearing supports conveyor rollers and robotic arms with smooth operation. The standard radial clearance allows for easy integration into various systems.

Q&A

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