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TS (Single Row Tapered Roller Bearings) (Imperial) 28980-28921A

TS (Single Row Tapered Roller Bearings) (Imperial) 28980-28921A

The 28980-28921A is a single-row tapered roller bearing with a 2.36″ bore and 3.94″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 23800 lbf radially and 4500 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 1.7 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments.

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Product Parameters

  • Part Number 28980-28921A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.3613" x 3.937" x 1.0001"
  • Bore Dia 2.3613"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.7813"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.0001"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.64"
  • Cone Backface Backing Diameter 2.87"
  • Cup Frontface Backing Diameter 3.82"
  • Cup Backface Backing Diameter 3.58"
  • Cage Cone Frontface Clearance 0.09"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.1"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 28980
  • Cup Part Number 28921A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 28900
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 23800 lbf
  • Static Radial Load 33500 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6180 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4500 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 1.7 lb

Features

Performance Features of 28980-28921A Bearing

28980-28921A Bearing is crafted with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 23,800 lbf, making it suitable for heavy-duty applications.
The steel cage maintains roller alignment, ensuring smooth operation and reduced wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 28980-28921A Bearing Resist Wear?

28980-28921A Bearing’s chrome steel construction enhances its resistance to wear and prolongs service life.
The tapered roller design distributes loads evenly, reducing stress on individual components.
Its standard radial clearance options allow for flexibility in different applications.
Regular lubrication ensures consistent performance and further minimises wear over time.

Built for Reliability: 28980-28921A Bearing

28980-28921A Bearing is designed for dependable operation in demanding environments.
Its single-row tapered roller construction handles both radial and thrust loads efficiently.
The bearing’s ABEC-1 rating ensures consistent precision and performance.
With a static radial load capacity of 33,500 lbf, it provides long-lasting durability.

Steel vs Ceramic Bearings: Strengths of 28980-28921A Bearing

28980-28921A Bearing’s chrome steel components offer excellent strength and cost-effectiveness.
Unlike ceramic bearings, it provides better impact resistance for heavy industrial use.
The steel cage and rollers ensure reliable performance under high loads.
Its compatibility with standard lubrication methods simplifies maintenance.

Application

Industrial Uses of 28980-28921A Bearing
The 28980-28921A Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

Where Is 28980-28921A Bearing Used?
You’ll often find 28980-28921A Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for vehicles requiring precise load distribution.

Built for Heavy-Duty Use: 28980-28921A Bearing
This bearing excels in industrial settings like conveyor systems, where its open design simplifies maintenance. The steel cage adds extra strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 28980-28921A Bearing
In automotive systems, 28980-28921A Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary gearboxes. Its temperature range ensures performance in varied conditions.

Essential Roles of 28980-28921A Bearing
For machinery requiring radial and thrust load support, 28980-28921A Bearing is a go-to choice. Its standard radial clearance offers flexibility for different operational needs.

Q&A

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