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TS (Single Row Tapered Roller Bearings) (Imperial) 45291-45221

TS (Single Row Tapered Roller Bearings) (Imperial) 45291-45221

The 45291-45221 is a single-row tapered roller bearing with a 2.25″ bore and 4.125″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 34500 lbf radially and 5090 lbf thrust-wise, 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 2.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

The tapered roller design provides effective load distribution, enhancing longevity. Suitable for applications requiring standard radial clearance, with options for C3, C4, or C5 available.

Its precise dimensions and tolerances ensure a snug fit, reducing wear over time. A dependable choice for maintenance and repair tasks in demanding environments.

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Product Parameters

  • Part Number 45291-45221
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 4.125" x 1.1875"
  • Bore Dia 2.25"
  • 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 0.25"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.56"
  • Cone Backface Backing Diameter 2.99"
  • 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 45291
  • 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 2.3 lb

Features

How Does 45291-45221 Bearing Handle Combined Loads?

45291-45221 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust 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.

Why Choose 45291-45221 Bearing for Precision Tasks?

45291-45221 Bearing features precise cone and cup dimensions, ensuring accurate alignment in machinery.
The standard radial clearance option allows for smooth operation in most industrial settings.
Its ABEC-1 rating guarantees consistent performance for general precision applications.
The open design simplifies lubrication, maintaining optimal performance over time.

Engineered for Reliability: 45291-45221 Bearing

45291-45221 Bearing’s single-row tapered roller design provides stable load distribution.
The chrome steel construction resists wear, even under high dynamic thrust loads up to 5,090 lbf.
Its effective center location ensures proper alignment, reducing stress on components.
With a weight of 2.3 lb, it balances durability and ease of handling.

Application

Industrial Uses of 45291-45221 Bearing
The 45291-45221 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in demanding environments.
In automotive applications, 45291-45221 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it compatible with many North American vehicle models.

What Makes 45291-45221 Bearing a Preferred Choice?
45291-45221 Bearing stands out in industrial gearboxes due to its ability to manage high dynamic radial loads. The steel cage adds robustness, making it suitable for continuous operation.
For agricultural machinery, this bearing’s tapered rollers offer smooth rotation even with heavy loads. Its standard radial clearance allows for easy installation in various equipment types.

Built for Heavy-Duty Use: 45291-45221 Bearing
45291-45221 Bearing excels in mining equipment, where its ABEC-1 rating ensures consistent performance. The open design simplifies lubrication, extending service life in harsh conditions.
In material handling systems, this bearing’s combined load capacity makes it ideal for conveyor pulleys. The inch measurements provide flexibility for retrofitting older machinery.

Automotive vs Aerospace: Applications of 45291-45221 Bearing
In automotive drivetrains, 45291-45221 Bearing handles high torque and axial forces efficiently. Its temperature range suits both engine and transmission components.
For aerospace ground support equipment, this bearing’s reliability and standard lubrication requirements make it a practical choice. The chrome steel rollers ensure smooth operation under frequent load changes.

Q&A

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