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TS (Single Row Tapered Roller Bearings) (Imperial) 745-742X

TS (Single Row Tapered Roller Bearings) (Imperial) 745-742X

The 745-742X is a single-row tapered roller bearing with a 2.36″ bore and 5.91″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 71400 lbf radial and 10300 lbf thrust, making it suitable 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 industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 9.4 lb, it’s built to last while maintaining standard radial clearance. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 745-742X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.3595" x 5.909" x 1.7502"
  • Bore Dia 2.3595"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.909"
  • 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 2.95"
  • 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 745
  • Cup Part Number 742X
  • 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 71400 lbf
  • Static Radial Load 93800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 18500 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 10300 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 9.4 lb

Features

Performance Features of 745-742X Bearing

745-742X Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 71,400 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing maintenance needs.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

How Does 745-742X Bearing Resist Wear?

745-742X Bearing’s chrome steel construction provides excellent resistance to wear and tear.
The tapered roller design distributes loads evenly, extending the bearing’s service life.
Its standard radial clearance allows for smooth operation, even under high stress.
The steel cage maintains roller positioning, further reducing friction and wear.

Engineered for Precision: 745-742X Bearing

745-742X Bearing is designed for precise performance in demanding environments.
Its tapered roller structure ensures accurate load distribution, minimising operational noise.
The bearing’s effective centre location of -0.47″ enhances stability during rotation.
With an ABEC-1 rating, it delivers consistent performance for industrial applications.

Steel vs Ceramic Bearings: Strengths of 745-742X Bearing

745-742X Bearing’s chrome steel construction offers a balance of strength and affordability.
The material provides excellent resistance to high loads, with a static radial capacity of 93,800 lbf.
Unlike ceramic options, it requires lubrication but is more cost-effective for many applications.
Its steel cage and rollers ensure reliable performance in standard industrial conditions.

Application

Industrial Uses of 745-742X Bearing
745-742X 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 tough working conditions.

In automotive applications, 745-742X Bearing supports axle systems and wheel hubs, providing reliable performance under both radial and thrust loads. Its imperial sizing makes it a convenient choice for North American vehicle models.

For industrial automation, 745-742X Bearing fits well in conveyor systems and gearboxes, where its open design allows for easy lubrication. The steel cage adds stability, making it suitable for high-load scenarios.

Where Is 745-742X Bearing Used?
You’ll often find 745-742X Bearing in mining equipment, where its robust design withstands heavy loads and harsh environments. The standard radial clearance ensures smooth operation in demanding settings.

In wind turbines, 745-742X Bearing plays a key role in supporting rotor shafts, thanks to its ability to manage combined loads. The ABEC-1 rating balances precision and cost-effectiveness for large-scale applications.

Built for Heavy-Duty Use: 745-742X Bearing
745-742X Bearing excels in railroad applications, particularly in freight car axles, where its tapered rollers distribute loads evenly. The chrome steel rollers enhance wear resistance over long distances.

For oil and gas machinery, 745-742X Bearing handles the high loads and vibrations common in drilling equipment. Its temperature range (-30° to 110°C) ensures reliability in extreme conditions.

Automotive vs Aerospace: Applications of 745-742X Bearing
In automotive systems, 745-742X Bearing is ideal for truck differentials, offering strength and longevity. The imperial measurements simplify replacements in older vehicle models.

For aerospace ground equipment, 745-742X Bearing supports landing gear testing rigs, where precision and load capacity are critical. Its steel cage provides stability during high-stress simulations.

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