+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
TS (Single Row Tapered Roller Bearings) (Imperial) 749-742

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

The 749-742 is a single-row tapered roller bearing with a 3.3475″ bore and 5.909″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 84700 lbf radially and 12200 lbf thrust, making it versatile for heavy-duty use.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for various industrial conditions.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for applications like gearboxes, axles, or machinery where both radial and thrust loads are present.

Weighing 7.2 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 749-742
  • Brand TFL
  • Interchangeable Timken
  • Size 3.3475" x 5.909" x 1.75"
  • Bore Dia 3.3475"
  • 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 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.46"
  • 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 749
  • 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 7.2 lb

Features

How Is 749-742 Bearing Engineered for Reliability?

749-742 Bearing features chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its dynamic radial load capacity reaches 84,700 lbf, making it suitable for heavy-duty applications.

The tapered roller design provides effective load distribution, reducing stress on individual components.
With a standard radial clearance, it offers reliable performance in various operating conditions.

749-742 Bearing operates within a temperature range of -30° to 110°C, maintaining stability in diverse environments.
The steel cage keeps rollers aligned, enhancing longevity and reducing maintenance needs.

Application

Industrial Uses of 749-742 Bearing
The 749-742 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 demanding environments.

In automotive applications, 749-742 Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. The inch sizing makes it a preferred choice for American and British vehicle models.

For industrial conveyor systems, 749-742 Bearing’s open design allows easy lubrication, extending service life in high-load scenarios. The steel cage adds stability, making it suitable for continuous operation.

Where Is 749-742 Bearing Used?
You’ll often find 749-742 Bearing in mining equipment, where its robust design handles harsh conditions. The tapered rollers distribute loads evenly, reducing wear over time.

In railway applications, 749-742 Bearing supports axle boxes, ensuring smooth movement under heavy loads. Its ABEC-1 rating balances precision and cost-effectiveness for these uses.

Built for Heavy-Duty Use: 749-742 Bearing
The 749-742 Bearing excels in forestry machinery, where its high static radial load capacity (93,800 lbf) handles unpredictable stresses. The standard radial clearance adapts well to varying temperatures.

For oil and gas equipment, 749-742 Bearing’s chrome steel rollers resist corrosion in challenging environments. Its -30° to 110°C range covers most operational conditions.

Automotive vs Aerospace: Applications of 749-742 Bearing
In automotive drivetrains, 749-742 Bearing manages combined loads in differentials, while its aerospace use is limited by ABEC-1 precision. The inch sizing aligns better with ground vehicle standards.

For industrial pumps, 749-742 Bearing’s dynamic thrust rating (12,200 lbf) suits moderate-speed rotations. Its steel cage prevents deformation under consistent pressure.

Q&A

SEND INQUIRY