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TS (Single Row Tapered Roller Bearings) (Imperial) 749V-743

TS (Single Row Tapered Roller Bearings) (Imperial) 749V-743

The 749V-743 is a single-row tapered roller bearing with a 3.3475″ bore and 5.9055″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 84700 lbf radially and 12200 lbf thrust, making it suitable for heavy-duty applications.

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 use in industrial machinery or automotive systems where robust performance is needed.

Weighing 7.000 lb, it’s built to last and complies with RoHS and REACH standards for safe usage. The standard radial clearance ensures versatility in various setups.

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Product Parameters

  • Part Number 749V-743
  • Brand TFL
  • Interchangeable Timken
  • Size 3.3475" x 5.9055" x 1.7502"
  • Bore Dia 3.3475"
  • Bore Dia Tolerance +0.001" 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 3.57"
  • 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 749V
  • 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 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 7.000 lb

Features

Performance Features of 749V-743 Bearing

749V-743 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 84,700 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Why Choose 749V-743 Bearing for Precision Tasks?

749V-743 Bearing’s tapered roller design provides precise load distribution, ensuring smooth operation.
The standard radial clearance and ABEC-1 rating make it ideal for applications requiring consistent performance.
Its chrome steel construction resists wear, maintaining accuracy over time.
The open seal type allows for easy lubrication, supporting long-term reliability.

Engineered for Reliability: 749V-743 Bearing

749V-743 Bearing features a single-row construction, optimised for combined load handling.
The chrome steel rollers and rings enhance strength, while the steel cage maintains alignment.
With a static radial load capacity of 93,800 lbf, it delivers dependable performance.
Its standard radial clearance options provide flexibility for different operational needs.

Application

Industrial Uses of 749V-743 Bearing
749V-743 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 even in demanding environments.

In automotive applications, 749V-743 Bearing supports wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its imperial sizing makes it a preferred choice for North American vehicle models.

For industrial conveyor systems, 749V-743 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability during continuous operation.

Where Is 749V-743 Bearing Used?
You’ll often find 749V-743 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design handles rough terrain. The ABEC-1 rating ensures consistent performance.

In mining equipment, 749V-743 Bearing’s high dynamic load capacity makes it suitable for crushers and screens. The standard radial clearance allows for smooth operation under varying conditions.

Built for Heavy-Duty Use: 749V-743 Bearing
749V-743 Bearing excels in forestry equipment like log splitters, thanks to its tapered roller design. The chrome steel rollers provide excellent wear resistance.

For railway applications, 749V-743 Bearing supports axle boxes, ensuring smooth movement under heavy loads. Its temperature range of -30° to 110°C makes it versatile for different climates.

Automotive vs Aerospace: Applications of 749V-743 Bearing
In automotive drivetrains, 749V-743 Bearing handles high torque, while in aerospace, its precision suits auxiliary systems. The interchangeable Timken design adds flexibility.

For industrial pumps, 749V-743 Bearing’s combined load capacity ensures reliable performance. The steel cage maintains alignment under high-speed conditions.

Q&A

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