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

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

The 744-742X is a single-row tapered roller bearing with a 2.875″ bore and 5.909″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 84700 lbf radially and 12200 lbf in thrust, making it versatile for heavy-duty use.

Its open design allows 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 applications where combined loads are common.

Weighing 8.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for various environments.

The standard radial clearance (with options for C3/C4/C5) ensures flexibility in different setups. Its ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

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Product Parameters

  • Part Number 744-742X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.875" x 5.909" x 1.7502"
  • Bore Dia 2.875"
  • 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 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 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 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 744-742X Bearing

744-742X Bearing is constructed 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 operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

How Is 744-742X Bearing Engineered for Reliability?

744-742X Bearing features precise cone and cup width tolerances, ensuring consistent performance under load.
The tapered roller design distributes stress evenly, enhancing durability and reducing wear.
Its standard radial clearance options (C3/C4/C5) allow for flexibility in different applications.
Lubrication is required to maintain smooth operation and prolong service life.

Built for Durability: 744-742X Bearing

744-742X Bearing’s chrome steel construction provides excellent resistance to wear and fatigue.
The single-row design simplifies installation while maintaining high load capacity.
With a static radial load rating of 93,800 lbf, it handles demanding conditions with ease.
Its ABEC-1 rating ensures reliable precision for industrial applications.

Steel vs Ceramic Bearings: Strengths of 744-742X Bearing

744-742X Bearing uses chrome steel for both rollers and rings, balancing cost and performance.
The steel cage offers robust support, ensuring stability under heavy radial and thrust loads.
Its dynamic thrust rating (Ca90) of 12,200 lbf makes it suitable for combined load scenarios.
The open seal design allows for easy lubrication and maintenance.

Application

Industrial Uses of 744-742X Bearing
744-742X Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is 744-742X Bearing Used?
In automotive applications, 744-742X Bearing supports axle systems and wheel hubs, providing reliable performance under high radial and thrust loads. Its inch sizing makes it a preferred choice for North American vehicle models.

Built for Heavy-Duty Use: 744-742X Bearing
This bearing excels in industrial gearboxes, where its single-row design simplifies installation and maintenance. The steel cage enhances stability, making it suitable for high-speed operations.

Automotive vs Aerospace: Applications of 744-742X Bearing
While 744-742X Bearing is widely used in truck axles, it also finds a place in aerospace landing gear systems. Its ABEC-1 rating ensures consistent performance across different industries.

Perfect Fit for Automation: 744-742X Bearing
In automated production lines, 744-742X Bearing ensures smooth operation of conveyor systems and robotic arms. The standard radial clearance allows for easy integration into various setups.

Q&A

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