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TS (Single Row Tapered Roller Bearings) (Imperial) 744A-743

TS (Single Row Tapered Roller Bearings) (Imperial) 744A-743

The 744A-743 is a single-row tapered roller bearing with a 2.75″ bore and 5.9055″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 71400 lbf radially and 10300 lbf thrust, making it a versatile choice.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. 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 industrial machinery or automotive applications where combined loads are common.

Weighing 8.5 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe and dependable choice.

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Product Parameters

  • Part Number 744A-743
  • Brand TFL
  • Interchangeable Timken
  • Size 2.75" x 5.9055" x 1.7502"
  • Bore Dia 2.75"
  • 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 0.2"
  • 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 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 8.5 lb

Features

Performance Features of 744A-743 Bearing

744A-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 ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 744A-743 Bearing Engineered for Reliability?

744A-743 Bearing features a single-row tapered roller design, providing stability under combined loads.
The chrome steel construction resists wear, ensuring a longer operational life.
Its standard radial clearance options allow for flexibility in different applications.
Maintenance is straightforward, as it requires regular lubrication for optimal performance.

Built for Durability: 744A-743 Bearing

744A-743 Bearing’s robust design handles static radial loads up to 93,800 lbf with ease.
The precise cone and cup dimensions ensure smooth operation and easy installation.
Its steel cage maintains roller positioning, reducing wear over time.
Operating within a wide temperature range, it adapts to various industrial environments.

Steel vs Ceramic Bearings: Strengths of 744A-743 Bearing

744A-743 Bearing uses chrome steel for both rings and rollers, offering excellent strength and durability.
This material choice ensures reliable performance under high dynamic and static loads.
The bearing’s tapered roller design efficiently manages combined radial and thrust loads.
With standard radial clearance, it provides consistent performance in diverse applications.

Application

Industrial Uses of 744A-743 Bearing
744A-743 Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is 744A-743 Bearing Used?
In automotive applications, 744A-743 Bearing fits well in 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.

Built for Heavy-Duty Use: 744A-743 Bearing
For industrial gearboxes, 744A-743 Bearing offers smooth operation thanks to its steel cage and precise tolerances. The open design allows for easy lubrication, extending its service life in high-load scenarios.

Automotive vs Aerospace: Applications of 744A-743 Bearing
In automotive systems, 744A-743 Bearing supports heavy loads in axles and transmissions, while in aerospace, its reliability is valued in landing gear mechanisms. The ABEC-1 rating ensures consistent performance across both sectors.

Essential Roles of 744A-743 Bearing
744A-743 Bearing is ideal for agricultural machinery, where its robust design withstands harsh conditions like dust and moisture. The standard radial clearance option makes it versatile for various farming equipment.

Q&A

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