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TS (Single Row Tapered Roller Bearings) (Imperial) 744-742A

TS (Single Row Tapered Roller Bearings) (Imperial) 744-742A

The 744-742A is a single-row tapered roller bearing with a 2.875″ bore and 5.9045″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 84700 lbf radial and 12200 lbf thrust, making it a versatile choice for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C, suitable for various industrial environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for use in gearboxes, axles, or machinery where combined radial and thrust loads are present.

Weighing 8.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements. The ABEC-1 rating ensures consistent performance for general applications.

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Product Parameters

  • Part Number 744-742A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.875" x 5.9045" x 1.7502"
  • Bore Dia 2.875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.9045"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.8375"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.4375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.7502"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.09"
  • Cone Backface Backing Diameter 3.58"
  • Cup Frontface Backing Diameter 5.63"
  • Cup Backface Backing Diameter 5.28"
  • Cage Cone Frontface Clearance 0.08"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.47"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 744
  • Cup Part Number 742A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 745
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 84700 lbf
  • Static Radial Load 93800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 21900 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 12200 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 8.3 lb

Features

Performance Features of 744-742A Bearing

744-742A Bearing is crafted from chrome steel for both rings and rollers, ensuring strength and durability.
Its dynamic radial load capacity reaches 84,700 lbf, making it suitable for heavy-duty applications.

The tapered roller design efficiently handles combined loads, providing reliable performance.
With a standard radial clearance, it offers flexibility for various operational needs.

744-742A Bearing operates within a temperature range of -30° to 110°C, adapting to diverse environments.
Its steel cage maintains roller alignment, reducing wear and extending service life.

The open seal design simplifies maintenance while ensuring proper lubrication.
Weighing 8.3 lb, it balances robustness with manageable installation.

Application

Industrial Uses of 744-742A Bearing
744-742A Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 744-742A Bearing supports axle systems, providing reliable performance under high radial and thrust loads. Its inch sizing makes it a fit for many North American vehicle models.

For industrial fans and pumps, 744-742A Bearing’s open design allows for easy lubrication, extending service life. The steel cage adds stability during high-speed operations.

Where Is 744-742A Bearing Used?
744-742A Bearing is found in agricultural machinery, particularly in gearboxes and drivetrains. Its robust design withstands the vibrations and shocks common in farming equipment.

In mining operations, 744-742A Bearing excels in conveyor systems, where its high dynamic load capacity ensures continuous operation. The standard radial clearance offers flexibility for various setups.

Built for Heavy-Duty Use: 744-742A Bearing
744-742A Bearing is ideal for forestry equipment, handling the uneven loads from log processing. The tapered rollers distribute stress evenly, reducing wear.

In material handling systems, 744-742A Bearing’s ABEC-1 rating provides sufficient precision for smooth operation. Its temperature range suits both indoor and outdoor applications.

Automotive vs Aerospace: Applications of 744-742A Bearing
744-742A Bearing is widely used in truck wheel hubs, where its combined load capacity is essential. The inch measurements align with standard automotive parts.

In aerospace ground support equipment, 744-742A Bearing’s reliability ensures smooth operation. However, its weight makes it less suitable for airborne applications.

Q&A

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