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TS (Single Row Tapered Roller Bearings) (Imperial) 748-742

TS (Single Row Tapered Roller Bearings) (Imperial) 748-742

The 748-742 is a single-row tapered roller bearing with a 3.1496″ 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. 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 wheel hubs or industrial gearboxes where combined loads are common.

Weighing 7.7 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for various industrial needs.

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Product Parameters

  • Part Number 748-742
  • Brand TFL
  • Interchangeable Timken
  • Size 3.1496" x 5.909" x 1.75"
  • Bore Dia 3.1496"
  • Bore Dia Tolerance +0.001" 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 1.75"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.12"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.32"
  • Cone Backface Backing Diameter 3.78"
  • 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 748
  • Cup Part Number 742
  • 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 7.7 lb

Features

Performance Features of 748-742 Bearing

748-742 Bearing is built with chrome steel rings and rollers, offering strong resistance to 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 wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 748-742 Bearing Reduce Friction?

748-742 Bearing’s tapered roller design minimises friction, ensuring smooth operation under combined loads.
The chrome steel construction enhances durability while maintaining efficient performance.
Precision tolerances on the cone and cup widths contribute to its reliable functionality.
This design also helps distribute loads evenly, extending the bearing’s service life.

Engineered for Precision: 748-742 Bearing

748-742 Bearing features precise cone and cup width tolerances for accurate performance.
Its chrome steel rollers and rings provide consistent operation in demanding environments.
The bearing’s effective centre location ensures proper alignment in various applications.
With standard radial clearance options, it offers flexibility for different installation needs.

Steel vs Ceramic Bearings: Strengths of 748-742 Bearing

748-742 Bearing uses chrome steel for both rings and rollers, balancing strength and cost-effectiveness.
This material choice provides excellent load capacity while resisting wear over time.
The steel cage maintains roller positioning, crucial for the bearing’s tapered design.
Unlike ceramic options, this construction offers proven reliability in industrial applications.

Why Choose 748-742 Bearing for Precision Tasks?

748-742 Bearing meets ABEC-1 standards, ensuring consistent performance in precision applications.
Its tight tolerances on bore and outer diameters contribute to accurate rotational movement.
The bearing’s effective centre location helps maintain alignment in complex assemblies.
With a static radial load capacity of 93,800 lbf, it handles demanding tasks with reliability.

Application

Industrial Uses of 748-742 Bearing
The 748-742 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 748-742 Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 748-742 Bearing’s open design allows easy lubrication, extending service life in high-load scenarios. The steel cage adds strength, making it suitable for continuous operation.

Where Is 748-742 Bearing Used?
You’ll often find 748-742 Bearing in mining equipment, where its robust design withstands harsh conditions. The tapered rollers distribute loads evenly, reducing wear over time.

In wind turbines, 748-742 Bearing supports rotor shafts, handling both radial and axial forces. Its ABEC-1 rating ensures consistent performance in variable wind speeds.

Built for Heavy-Duty Use: 748-742 Bearing
The 748-742 Bearing excels in railroad applications, where its high dynamic load capacity keeps trains running smoothly. Its standard radial clearance allows for easy installation and maintenance.

In hydraulic pumps, 748-742 Bearing’s precise tolerances ensure minimal friction, improving efficiency. The chrome steel rollers resist wear, even under constant use.

Automotive vs Aerospace: Applications of 748-742 Bearing
In automotive systems, 748-742 Bearing is ideal for axles and transmissions, offering reliable load handling. Its inch measurements align with many US-made components.

For aerospace ground equipment, 748-742 Bearing provides stability in landing gear test rigs. The temperature range suits both indoor and outdoor use.

Q&A

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