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TS (Single Row Tapered Roller Bearings) (Imperial) 18790-18721

TS (Single Row Tapered Roller Bearings) (Imperial) 18790-18721

The 18790-18721 is a single-row tapered roller bearing with a 2-inch bore and 3.28-inch outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 12300 lbf radially and 2210 lbf thrust-wise, 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 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 just 0.8 lb, it’s lightweight yet robust. Compliant with RoHS and REACH standards for safe use.

The standard radial clearance ensures easy installation, while the ABEC-1 rating provides dependable performance. Suitable for applications requiring precise load handling and long service life.

Its tapered roller design efficiently manages both radial and thrust loads. Perfect for gearboxes, axles, or other heavy-duty equipment.

The chrome steel construction resists wear, extending the bearing’s lifespan. Simple to maintain and replace, making it a practical choice for engineers and repair teams.

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Product Parameters

  • Part Number 18790-18721
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 3.28" x 0.6875"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.28"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.6875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.5313"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.6875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.2"
  • Cone Backface Backing Diameter 2.44"
  • Cup Frontface Backing Diameter 3.13"
  • Cup Backface Backing Diameter 3.03"
  • Cage Cone Frontface Clearance 0.09"
  • Cage Cone Backface Clearance 0.02"
  • Effective Center Location -0.03"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 18790
  • Cup Part Number 18721
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 18700
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 12300 lbf
  • Static Radial Load 15200 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 3190 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2210 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 0.8 lb

Features

Performance Features of 18790-18721 Bearing

18790-18721 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 12,300 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 18790-18721 Bearing Engineered for Reliability?

18790-18721 Bearing features a single-row tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction enhances durability, while the standard radial clearance ensures smooth operation.
Its effective centre location of -0.03″ improves load distribution and stability.
This design makes it a dependable choice for industrial applications.

Built for Durability: 18790-18721 Bearing

18790-18721 Bearing’s chrome steel components resist wear, even under heavy loads.
The tapered roller design efficiently manages combined loads, with a static radial load capacity of 15,200 lbf.
Its open construction allows for easy lubrication, maintaining performance over time.
The bearing operates reliably within a wide temperature range, suitable for various conditions.

Steel vs Ceramic Bearings: Strengths of 18790-18721 Bearing

18790-18721 Bearing uses chrome steel for both rollers and rings, providing excellent strength and durability.
Its dynamic thrust rating of 2,210 lbf ensures stable performance under load.
The steel cage design keeps rollers properly spaced, reducing friction and wear.
This makes it a practical choice for applications where reliability is key.

Application

Industrial Uses of 18790-18721 Bearing
18790-18721 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding conditions.

Where Is 18790-18721 Bearing Used?
You’ll often find 18790-18721 Bearing in automotive applications like wheel hubs and differentials, thanks to its reliable performance under radial and thrust loads. Its imperial sizing makes it a straightforward fit for many US-made vehicles.

Built for Heavy-Duty Use: 18790-18721 Bearing
18790-18721 Bearing excels in industrial conveyor systems, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 18790-18721 Bearing
In automotive settings, 18790-18721 Bearing supports drivetrain components, while its precision also makes it useful in aerospace landing gear systems. The ABEC-1 rating ensures consistent performance across both fields.

Essential Roles of 18790-18721 Bearing
18790-18721 Bearing is a go-to choice for mining equipment, where its ability to handle heavy radial and thrust loads keeps operations running smoothly. The standard radial clearance offers flexibility for various installation needs.

Q&A

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