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TS (Single Row Tapered Roller Bearings) (Imperial) 2789A-2731

TS (Single Row Tapered Roller Bearings) (Imperial) 2789A-2731

The 2789A-2731 is a single-row tapered roller bearing with a 1.5625″ bore and 3.125″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 19500 lbf radially and 2630 lbf in thrust, making it versatile for various applications.

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

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for machinery like gearboxes or axles where combined loads are common.

Weighing 1.2 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use.

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Product Parameters

  • Part Number 2789A-2731
  • Brand TFL
  • Interchangeable Timken
  • Size 1.5625" x 3.125" x 0.9361"
  • Bore Dia 1.5625"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.01"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.9361"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.81"
  • Cone Backface Backing Diameter 1.95"
  • Cup Frontface Backing Diameter 2.87"
  • Cup Backface Backing Diameter 2.64"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.04"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 2789A
  • Cup Part Number 2731
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 2700
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 19500 lbf
  • Static Radial Load 23000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5060 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2630 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 1.2 lb

Features

How Does 2789A-2731 Bearing Handle Combined Loads?

2789A-2731 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 19,500 lbf, ensuring reliable performance in demanding conditions.
The steel cage keeps the tapered rollers aligned, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

What Makes 2789A-2731 Bearing Suitable for High-Temperature Applications?

2789A-2731 Bearing withstands temperatures up to 110°C, maintaining its performance in challenging conditions.
The chrome steel construction ensures durability and resistance to wear under heavy loads.
Its standard radial clearance allows for smooth operation even in high-temperature environments.
The open design simplifies lubrication, ensuring consistent performance over time.

Engineered for Precision: 2789A-2731 Bearing

2789A-2731 Bearing features precise tolerances, with bore diameter tolerance of +0.005″ to 0.
The tapered roller design ensures accurate load distribution, reducing stress on individual components.
Its effective center location of -0.32″ enhances stability during operation.
The ABEC-1 rating confirms its suitability for precision applications.

Application

Industrial Uses of 2789A-2731 Bearing
2789A-2731 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in demanding environments.

In automotive applications, 2789A-2731 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 2789A-2731 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability during continuous operation.

Where Is 2789A-2731 Bearing Used?
You’ll often find 2789A-2731 Bearing in agricultural machinery, where its robust design handles rough terrain and heavy loads. The standard radial clearance offers flexibility for different operating conditions.

In mining equipment, 2789A-2731 Bearing’s ability to manage combined loads makes it suitable for crushers and screens. The ABEC-1 rating ensures consistent performance without over-engineering.

Built for Heavy-Duty Use: 2789A-2731 Bearing
2789A-2731 Bearing excels in forestry equipment, where its tapered rollers distribute loads evenly across surfaces. The chrome steel rollers resist wear even in dusty or wet conditions.

For material handling systems, 2789A-2731 Bearing’s dynamic radial load capacity keeps operations smooth. The steel cage prevents roller misalignment during sudden load changes.

Automotive vs Aerospace: Applications of 2789A-2731 Bearing
In automotive drivetrains, 2789A-2731 Bearing handles torque variations efficiently. Its inch measurements simplify replacements in older vehicle models.

For ground support aerospace equipment, 2789A-2731 Bearing provides reliable performance without the need for precision tolerances. The temperature range suits most outdoor working conditions.

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