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TS (Single Row Tapered Roller Bearings) (Imperial) 745-743

TS (Single Row Tapered Roller Bearings) (Imperial) 745-743

The 745-743 is a single-row tapered roller bearing with a 2.36″ bore and 5.91″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 71,400 lbf radially and 10,300 lbf thrust, suitable for heavy-duty applications.

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

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for machinery like gearboxes or axles where combined loads are common.

Weighing 9.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 745-743
  • Brand TFL
  • Interchangeable Timken
  • Size 2.3595" x 5.9055" x 1.7502"
  • Bore Dia 2.3595"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.9055"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.8375"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.378"
  • 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 743
  • 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 9.3 lb

Features

Performance Features of 745-743 Bearing

745-743 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 maintains roller alignment, ensuring smooth operation and reduced wear.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

745-743 Bearing requires lubrication, but its robust design ensures long service life.
The standard radial clearance option provides flexibility for different operational needs.

Application

Industrial Uses of 745-743 Bearing
The 745-743 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in rugged environments.

In automotive applications, 745-743 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a preferred choice for North American vehicle models.

For industrial gearboxes, 745-743 Bearing’s open design allows for easy lubrication, extending its service life in high-speed operations. The steel cage adds stability, reducing wear during prolonged use.

Where Is 745-743 Bearing Used?
You’ll often find 745-743 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design withstands heavy loads. The standard radial clearance ensures smooth operation even in dusty conditions.

In mining equipment, 745-743 Bearing’s ability to handle dynamic radial loads makes it ideal for conveyor systems. Its temperature range suits both hot and cold working environments.

Built for Heavy-Duty Use: 745-743 Bearing
The 745-743 Bearing excels in forestry equipment, where its tapered rollers manage uneven loads effortlessly. Its ABEC-1 rating balances precision and cost-effectiveness for industrial applications.

In material handling systems, 745-743 Bearing’s steel cage and chrome steel rollers reduce friction, enhancing efficiency. The open design simplifies maintenance, saving downtime.

Automotive vs Aerospace: Applications of 745-743 Bearing
In automotive settings, 745-743 Bearing supports drivetrain components, offering reliable performance under stress. Its imperial measurements align with standard US automotive specs.

For aerospace ground equipment, 745-743 Bearing’s dynamic load capacity ensures smooth operation in auxiliary systems. However, its weight may limit use in airborne applications.

Q&A

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