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TS (Single Row Tapered Roller Bearings) (Imperial) 745A-742X

TS (Single Row Tapered Roller Bearings) (Imperial) 745A-742X

The 745A-742X is a single-row tapered roller bearing with a 2.75″ bore and 5.909″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 84700 lbf and works well in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing is interchangeable with Timken models, making it a practical choice for replacements.

With a standard radial clearance and ABEC-1 rating, it offers reliable performance for industrial applications. Ideal for machinery like gearboxes or conveyors where combined loads are common.

Weighing 8.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 745A-742X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.75" x 5.909" x 1.7502"
  • Bore Dia 2.75"
  • Bore Dia Tolerance +0.005" 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 3.94"
  • Cone Backface Backing Diameter 3.46"
  • 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 745A
  • Cup Part Number 742X
  • 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 8.6 lb

Features

How Is 745A-742X Bearing Engineered for Reliability?

745A-742X Bearing features chrome steel rings and rollers, providing robust performance under 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 extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

What Makes 745A-742X Bearing Suitable for High-Temperature Applications?

745A-742X Bearing is built with chrome steel components, ensuring durability in temperatures up to 110°C.
The open design allows for effective lubrication, maintaining smooth operation under thermal stress.
Its standard radial clearance options provide flexibility for different operating conditions.
This bearing is ideal for applications where temperature fluctuations are common.

Designed for Durability: 745A-742X Bearing

745A-742X Bearing’s single-row tapered roller design offers excellent load distribution.
The chrome steel construction resists wear, even under high dynamic radial loads of 84,700 lbf.
Its precise tolerances ensure consistent performance over long periods.
With a weight of 8.6 lb, it balances strength and manageability.

Application

Industrial Uses of 745A-742X Bearing
745A-742X Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 745A-742X Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a straightforward replacement for many North American vehicle models.

For industrial automation, 745A-742X Bearing supports conveyor systems and robotic arms, where its open design allows for easy lubrication. The steel cage adds stability during high-speed operations.

Where Is 745A-742X Bearing Used?
You’ll often find 745A-742X Bearing in mining equipment, where its robust design handles heavy radial and thrust loads. The standard radial clearance offers flexibility for different operational needs.

In power transmission systems, 745A-742X Bearing ensures smooth rotation for gears and pulleys. Its ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

Built for Heavy-Duty Use: 745A-742X Bearing
745A-742X Bearing excels in forestry machinery, enduring harsh conditions with its chrome steel rollers. The tapered design distributes loads evenly, reducing wear over time.

For railway applications, 745A-742X Bearing supports axle boxes, where its dynamic load capacity ensures long service life. The steel cage prevents roller misalignment during vibrations.

Automotive vs Aerospace: Applications of 745A-742X Bearing
In automotive settings, 745A-742X Bearing is ideal for truck transmissions, handling high torque with ease. The imperial measurements simplify maintenance for fleet operators.

For aerospace ground equipment, 745A-742X Bearing provides reliable performance in tow tractors and cargo loaders. Its temperature range suits both indoor and outdoor use.

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