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

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

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

Its open design allows easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures 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 1.2 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 2789-2731
  • 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 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.77"
  • Cone Backface Backing Diameter 2.05"
  • 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 2789
  • 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

Performance Features of 2789-2731 Bearing

2789-2731 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 19,500 lbf, ensuring reliable performance in various applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in diverse environments.

How Is 2789-2731 Bearing Engineered for Reliability?

2789-2731 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction enhances durability, while the open seal type allows for easy lubrication.
Its standard radial clearance ensures smooth operation, suitable for ABEC-1 precision requirements.
Weighing just 1.2 lb, it balances strength and ease of use.

Built for Durability: 2789-2731 Bearing

2789-2731 Bearing’s tapered roller design efficiently manages both radial and thrust loads.
The steel cage and chrome steel rollers work together to minimise wear and maintain performance.
With a static radial load capacity of 23,000 lbf, it handles heavy-duty applications with ease.
Its inch-sized dimensions make it compatible with a wide range of machinery.

Steel vs Ceramic Bearings: Strengths of 2789-2731 Bearing

2789-2731 Bearing uses chrome steel for both rollers and rings, ensuring high load capacity and durability.
The open design allows for easy maintenance, though lubrication is required for optimal performance.
Its effective centre location of -0.32″ ensures precise alignment in various setups.
Operating between -30° to 110°C, it remains reliable in most industrial conditions.

Application

Industrial Uses of 2789-2731 Bearing
2789-2731 Bearing works well in heavy machinery like conveyor systems, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding industrial environments.

Where Is 2789-2731 Bearing Used?
You’ll often find 2789-2731 Bearing in automotive applications, particularly in wheel hubs and transmissions. Its inch sizing makes it a good fit for vehicles using imperial measurements.

Built for Heavy-Duty Use: 2789-2731 Bearing
2789-2731 Bearing is a reliable choice for construction equipment, thanks to its high dynamic radial load capacity. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 2789-2731 Bearing
In automotive settings, 2789-2731 Bearing supports wheel and drivetrain components, while its precision suits aerospace landing gear systems. The steel cage adds stability under varying loads.

Perfect Fit for Automation: 2789-2731 Bearing
2789-2731 Bearing performs well in robotic arms, where its tapered rollers provide smooth motion control. The standard radial clearance ensures consistent performance in automated systems.

Q&A

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