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TS (Single Row Tapered Roller Bearings) (Imperial) 749V-742A

TS (Single Row Tapered Roller Bearings) (Imperial) 749V-742A

The 749V-742A is a single-row tapered roller bearing with a 3.3475″ bore and 5.9045″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 84700 lbf radially and 12200 lbf thrust, making it a robust 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.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for use in industrial machinery, automotive systems, or construction equipment where combined loads are common.

Weighing 7.100 lb, it’s built to last and complies with RoHS and REACH standards for safe and sustainable use.

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Product Parameters

  • Part Number 749V-742A
  • Brand TFL
  • Interchangeable Timken
  • Size 3.3475" x 5.9045" x 1.7502"
  • Bore Dia 3.3475"
  • Bore Dia Tolerance +0.001" 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 3.57"
  • Cone Backface Backing Diameter 3.19"
  • 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 749V
  • 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 7.100 lb

Features

Performance Features of 749V-742A Bearing

749V-742A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 84,700 lbf, ensuring reliable performance in heavy-duty applications.

The steel cage maintains roller alignment, reducing friction and extending service life.
With a standard radial clearance, it provides flexibility for various operational conditions.

749V-742A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its tapered roller design ensures smooth performance under both radial and thrust loads.

The open seal type allows for easy lubrication, maintaining optimal performance.
Weighing 7.100 lb, it balances durability and practicality in industrial settings.

Application

Industrial Uses of 749V-742A Bearing
749V-742A Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 749V-742A Bearing fits well in wheel hubs and differential systems, providing reliable performance under both radial and thrust loads. Its inch sizing makes it compatible with many American-made vehicles.

For industrial conveyor systems, 749V-742A Bearing’s open design allows for easy lubrication, extending its service life in high-use scenarios. The steel cage adds extra strength to withstand continuous operation.

What Makes 749V-742A Bearing a Preferred Choice?
749V-742A Bearing is ideal for agricultural machinery, such as tractors and harvesters, where its robust design copes with uneven loads. The standard radial clearance offers flexibility for various operating conditions.

In power transmission systems, 749V-742A Bearing supports shafts and gears, ensuring smooth rotation under heavy loads. Its ABEC-1 rating provides a balance of precision and affordability for general industrial use.

Built for Heavy-Duty Use: 749V-742A Bearing
749V-742A Bearing excels in railway applications, particularly in axle boxes where its tapered rollers manage both radial and axial forces. The chrome steel rollers resist wear, even under constant vibration.

For pulp and paper processing equipment, 749V-742A Bearing’s high dynamic load capacity ensures reliable performance in wet and dusty conditions. The steel cage further enhances its resistance to corrosion.

Automotive vs Aerospace: Applications of 749V-742A Bearing
In automotive drivetrains, 749V-742A Bearing handles the high torque and variable loads found in trucks and buses. Its inch measurements simplify replacements in older vehicle models.

While not typically used in aerospace, 749V-742A Bearing suits ground support equipment like aircraft tugs, where its durability and load capacity are advantageous. The temperature range accommodates most operational environments.

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