TS (Single Row Tapered Roller Bearings) (Imperial) 740-742

TS (Single Row Tapered Roller Bearings) (Imperial) 740-742

The 740-742 is a single-row tapered roller bearing with a 3.1875″ bore and 5.909″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 84700 lbf radially and 12200 lbf thrust, suitable for demanding applications.

Its open design allows easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

Interchangeable with Timken models, it’s a practical choice for replacements. Ideal for industrial machinery or automotive systems where combined loads are common.

Weighing 7.5 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, ensuring safe and reliable performance.

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Product Parameters

  • Part Number 740-742
  • Brand TFL
  • Interchangeable Timken
  • Size 3.1875" x 5.909" x 1.75"
  • Bore Dia 3.1875"
  • 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 0.2"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.4"
  • Cone Backface Backing Diameter 3.98"
  • 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 740
  • 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 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 7.5 lb

Features

Engineered for Precision: 740-742 Bearing

740-742 Bearing features a single-row tapered roller design, ideal for handling combined loads with high efficiency.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.
The precise tolerances, such as bore and outer diameter within +0.001″ to 0, enhance its reliability.
With a dynamic radial load capacity of 84,700 lbf, it performs well under heavy loads.

How Does 740-742 Bearing Reduce Friction?

740-742 Bearing’s tapered roller design minimises friction, ensuring smooth operation even under combined loads.
The chrome steel rollers and rings work together to distribute stress evenly, reducing wear.
Its standard radial clearance options (C3/C4/C5) allow for optimal performance in various conditions.
Lubrication is required to maintain its efficiency and extend service life.

Structural Advantages of 740-742 Bearing

740-742 Bearing’s steel cage keeps the rollers aligned, preventing misalignment and reducing friction.
The cone and cup design allows for easy installation and maintenance, saving time and effort.
With a static radial load capacity of 93,800 lbf, it handles heavy loads reliably.
Its temperature range of -30° to 110°C ensures performance in diverse environments.

Application

Industrial Uses of 740-742 Bearing
The 740-742 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 tough working conditions.

In automotive applications, 740-742 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 740-742 Bearing’s open design allows for easy lubrication, extending its service life in high-use environments. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 740-742 Bearing Used?
You’ll often find 740-742 Bearing in mining equipment, where its ability to handle heavy radial and thrust loads is essential. The standard radial clearance option ensures smooth operation in demanding settings.

In power transmission systems, 740-742 Bearing supports shafts and gears, thanks to its robust construction. The ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

Built for Heavy-Duty Use: 740-742 Bearing
The 740-742 Bearing excels in applications like railroad axles, where its tapered rollers manage high stress and vibration. Its temperature range of -30° to 110°C ensures reliability in diverse climates.

For pulp and paper machinery, 740-742 Bearing’s steel cage and chrome steel rollers resist wear, even in dusty or humid environments. The open seal design simplifies maintenance during routine checks.

Automotive vs Aerospace: Applications of 740-742 Bearing
In automotive systems, 740-742 Bearing is a go-to for drivetrain components, offering a balance of strength and affordability. Its inch measurements align with many standard vehicle designs.

For aerospace ground support equipment, 740-742 Bearing provides dependable performance in load-handling tools. While not for flight use, its durability suits heavy-duty ground operations.

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