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

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

The 744A-742X is a single-row tapered roller bearing with a 2.75″ bore and 5.909″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 71400 lbf radially and 10300 lbf thrust, making it versatile for heavy-duty use.

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 applications like truck axles or industrial gearboxes where combined loads are common.

Weighing 8.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s safe for various industrial uses.

The standard radial clearance and ABEC-1 rating make it a practical choice for general engineering needs. Its tapered roller design ensures even load distribution, enhancing longevity.

Perfect for machinery requiring dependable performance under heavy radial and thrust loads. The easy-to-maintain design suits both new installations and replacements.

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Product Parameters

  • Part Number 744A-742X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.75" x 5.909" x 1.7502"
  • Bore Dia 2.75"
  • 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 0.2"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 3.94"
  • 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 744A
  • 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 8.6 lb

Features

Performance Features of 744A-742X Bearing

744A-742X Bearing is crafted 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 friction.
With a standard radial clearance option, it provides flexibility for various operational needs.

How Is 744A-742X Bearing Engineered for Reliability?

744A-742X Bearing features precise cone and cup width tolerances, ensuring consistent performance.
The chrome steel construction resists wear, extending the bearing’s service life in demanding conditions.
Its effective center location design helps maintain stability under combined loads.
The open seal type allows for easy lubrication, supporting smooth operation over time.

Optimized for Efficiency: 744A-742X Bearing

744A-742X Bearing’s tapered roller design minimises friction, improving energy efficiency.
The steel cage maintains roller spacing, reducing heat generation during operation.
With a temperature range of -30° to 110°C, it performs reliably in various environments.
Its ABEC-1 rating ensures consistent quality for industrial applications.

Application

Industrial Uses of 744A-742X Bearing
744A-742X 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 in demanding environments.

In automotive applications, 744A-742X Bearing supports wheel hubs and axles, providing reliable performance under both radial and thrust loads. Its imperial sizing makes it a fit for many North American vehicle models.

For industrial conveyor systems, 744A-742X Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability during continuous operation.

What Makes 744A-742X Bearing a Preferred Choice?
744A-742X Bearing is ideal for agricultural machinery, where its robust design withstands dirt and debris. The tapered rollers distribute loads evenly, reducing wear over time.

In mining equipment, 744A-742X Bearing’s high dynamic radial load capacity ensures reliability in harsh conditions. The standard radial clearance accommodates thermal expansion during prolonged use.

For gearboxes, 744A-742X Bearing’s precise tolerances contribute to smooth power transmission. Its compatibility with Timken models makes it a versatile replacement option.

Built for Heavy-Duty Use: 744A-742X Bearing
744A-742X Bearing excels in forestry machinery, where its combined load capability handles unpredictable forces. The chrome steel rollers resist deformation under stress.

In material handling systems, 744A-742X Bearing’s ABEC-1 rating balances performance and cost-effectiveness. The open seal design simplifies maintenance in dusty environments.

For pump applications, 744A-742X Bearing’s temperature range suits both indoor and outdoor use. The steel cage ensures consistent alignment under varying pressures.

Automotive vs Aerospace: Applications of 744A-742X Bearing
In automotive drivetrains, 744A-742X Bearing manages thrust and radial loads efficiently. Its imperial measurements align with standard US manufacturing specs.

For aerospace ground support equipment, 744A-742X Bearing’s weight-to-strength ratio proves advantageous. The chrome steel composition meets industry corrosion resistance standards.

In truck suspensions, 744A-742X Bearing’s dynamic load rating supports heavy payloads. The tapered design accommodates misalignment during off-road use.

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