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TS (Single Row Tapered Roller Bearings) (Imperial) A4049-A4138

TS (Single Row Tapered Roller Bearings) (Imperial) A4049-A4138

The A4049-A4138 is a single-row tapered roller bearing with a 0.4992″ bore and 1.3775″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 2960 lbf radial and 594 lbf thrust, suitable for moderate-speed applications.

Its open design allows easy lubrication, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures from -30°C to 110°C, making it versatile for various conditions.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for automotive or industrial uses where combined radial and thrust loads are present.

Weighing just 0.100 lb, it’s lightweight yet sturdy. Compliant with RoHS and REACH standards, it meets environmental and safety requirements.

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Product Parameters

  • Part Number A4049-A4138
  • Brand TFL
  • Interchangeable Timken
  • Size 0.4992" x 1.3775" x 0.433"
  • Bore Dia 0.4992"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 1.3775"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.4326"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.3437"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.433"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 0.69"
  • Cone Backface Backing Diameter 0.69"
  • Cup Frontface Backing Diameter 1.28"
  • Cup Backface Backing Diameter 1.14"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0"
  • Effective Center Location -0.1"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number A4049
  • Cup Part Number A4138
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series A4000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 2960 lbf
  • Static Radial Load 2580 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 767 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 594 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 0.100 lb

Features

Performance Features of A4049-A4138 Bearing

A4049-A4138 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 2960 lbf, ensuring reliable performance in various applications.

The steel cage maintains roller alignment, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs well in diverse environments.

A4049-A4138 Bearing requires lubrication, ensuring smooth operation and reduced wear over time.
Its standard radial clearance makes it versatile for different industrial needs.

Application

Industrial Uses of A4049-A4138 Bearing
A4049-A4138 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.

In automotive applications, A4049-A4138 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a convenient choice for older or American-made vehicles.

For industrial conveyor systems, A4049-A4138 Bearing’s open design allows for easy lubrication, extending service life in high-use environments. The steel cage adds stability, reducing wear over time.

Where Is A4049-A4138 Bearing Used?
A4049-A4138 Bearing finds its place in gearboxes and power transmission systems, where precise load handling is essential. The tapered rollers distribute stress evenly, enhancing longevity.

In manufacturing plants, A4049-A4138 Bearing supports rotating shafts in presses and milling machines. Its standard radial clearance ensures smooth operation without excessive friction.

Built for Heavy-Duty Use: A4049-A4138 Bearing
A4049-A4138 Bearing excels in mining equipment, where its robust design withstands extreme loads and harsh conditions. The chrome steel rollers resist deformation under pressure.

For railway applications, A4049-A4138 Bearing provides stability in axle boxes, ensuring safe and efficient operation. The ABEC-1 rating balances precision and cost-effectiveness.

Automotive vs Aerospace: Applications of A4049-A4138 Bearing
In automotive settings, A4049-A4138 Bearing is ideal for drivetrain components, offering reliable performance under constant stress. The inch measurements suit many classic car models.

While not typically used in aerospace, A4049-A4138 Bearing serves well in ground support equipment, where durability and ease of maintenance are key. The open seal design simplifies inspections.

Q&A

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