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

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

The 745A-742 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 radially and 12200 lbf thrust, making it robust 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 varied environments.

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 8.6 lb, it’s built to last while meeting RoHS and REACH standards for safety. The ABEC-1 rating ensures dependable performance for general precision needs.

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Product Parameters

  • Part Number 745A-742
  • Brand TFL
  • Interchangeable Timken
  • Size 2.75" x 5.909" x 1.75"
  • 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 1.75"
  • 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 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 8.6 lb

Features

How Is 745A-742 Bearing Engineered for Reliability?

745A-742 Bearing features chrome steel rings and rollers, ensuring 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.

745A-742 Bearing operates within a temperature range of -30° to 110°C, adapting to different environments.
The steel cage maintains roller alignment, enhancing stability and extending service life.

Installation is straightforward due to its single-row construction and open seal type.
Regular lubrication ensures smooth operation and maintains performance over time.

Application

Industrial Uses of 745A-742 Bearing
745A-742 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.

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

For industrial conveyor systems, 745A-742 Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The steel cage adds extra strength to withstand continuous operation.

Where Is 745A-742 Bearing Used?
You’ll often find 745A-742 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design handles rough conditions. The tapered rollers manage both radial and thrust loads smoothly.

In railway applications, 745A-742 Bearing supports axle boxes, ensuring stable performance at high speeds. The standard radial clearance option makes it adaptable to various operational needs.

Built for Heavy-Duty Use: 745A-742 Bearing
745A-742 Bearing excels in forestry equipment like log splitters and sawmills, thanks to its high static radial load capacity. The steel cage and chrome steel rollers resist wear over time.

For power transmission systems, 745A-742 Bearing’s ABEC-1 rating ensures consistent performance. Its temperature range of -30° to 110°C makes it suitable for diverse climates.

Automotive vs Aerospace: Applications of 745A-742 Bearing
In automotive settings, 745A-742 Bearing is ideal for truck transmissions, handling heavy loads with ease. The inch sizing simplifies replacements in older vehicle models.

For aerospace ground support equipment, 745A-742 Bearing’s reliability shines in tow tractors and cargo loaders. The dynamic thrust rating ensures smooth operation under frequent load changes.

Q&A

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