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TS (Single Row Tapered Roller Bearings) (Imperial) 749A-742V

TS (Single Row Tapered Roller Bearings) (Imperial) 749A-742V

The 749A-742V is a single-row tapered roller bearing with a 3.25″ bore and 5.909″ outer diameter, crafted from robust 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 easy lubrication, while the steel cage ensures durability under high stress. 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 systems where combined loads are common.

Weighing 7.4 lb, it’s built to last while meeting RoHS and REACH standards for safety and environmental compliance.

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Product Parameters

  • Part Number 749A-742V
  • Brand TFL
  • Interchangeable Timken
  • Size 3.25" x 5.909" x 1.7502"
  • Bore Dia 3.25"
  • 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 1.7502"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.43"
  • Cone Backface Backing Diameter 3.9"
  • 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 749A
  • Cup Part Number 742V
  • 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 7.400 lb

Features

How Is 749A-742V Bearing Engineered for Reliability?

749A-742V Bearing is constructed with chrome steel rings and rollers, ensuring strength and durability.
Its dynamic radial load capacity reaches 84,700 lbf, making it suitable for heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

What Makes 749A-742V Bearing Suitable for High-Temperature Applications?

749A-742V Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its chrome steel construction resists thermal deformation, ensuring consistent performance.
The open design allows for proper lubrication, reducing heat buildup during operation.
This makes it ideal for environments with fluctuating temperatures.

Designed for Durability: 749A-742V Bearing

749A-742V Bearing features a robust single-row tapered roller design for combined load handling.
Its chrome steel components resist wear, providing long service life even under heavy loads.
The standard radial clearance ensures smooth operation and reduces maintenance needs.
With a static radial load capacity of 93,800 lbf, it excels in demanding industrial applications.

How Does 749A-742V Bearing Reduce Friction?

749A-742V Bearing’s tapered roller design minimises friction during operation.
The steel cage keeps rollers properly spaced, preventing metal-to-metal contact.
Its precision-engineered components ensure smooth rotation under both radial and thrust loads.
This results in efficient performance and reduced energy consumption.

Application

Industrial Uses of 749A-742V Bearing
749A-742V Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 749A-742V Bearing fits well in truck wheel hubs, providing reliable performance under varying load conditions. Its inch sizing makes it compatible with many North American vehicle models.

For industrial fans and pumps, 749A-742V Bearing’s open design allows for easy lubrication, extending service life. The steel cage adds stability during high-speed operations.

Where Is 749A-742V Bearing Used?
You’ll often find 749A-742V Bearing in agricultural machinery, such as tractors and harvesters, where its robust design withstands rough terrain. The standard radial clearance ensures smooth operation.

In conveyor systems, 749A-742V Bearing supports heavy loads while maintaining precision. Its ABEC-1 rating balances performance and cost for general industrial use.

Built for Heavy-Duty Use: 749A-742V Bearing
749A-742V Bearing excels in mining equipment, handling extreme loads with ease. The tapered rollers distribute stress evenly, reducing wear over time.

For gearboxes in industrial settings, 749A-742V Bearing’s dynamic radial load capacity ensures reliable power transmission. Its temperature range suits both hot and cold environments.

Automotive vs Aerospace: Applications of 749A-742V Bearing
In automotive drivetrains, 749A-742V Bearing provides stability under high torque. Its inch measurements align with many standard designs.

For aerospace ground support equipment, 749A-742V Bearing offers a balance of strength and precision. The chrome steel components resist corrosion in various conditions.

Q&A

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