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TS (Single Row Tapered Roller Bearings) (Imperial) 339-333A

TS (Single Row Tapered Roller Bearings) (Imperial) 339-333A

The 339-333A is a single-row tapered roller bearing with a 1.378″ bore and 3.1486″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 21200 lbf radially and 2570 lbf thrust, making it versatile for various applications.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 1.2 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use.

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Product Parameters

  • Part Number 339-333A
  • Brand TFL
  • Interchangeable Timken
  • Size 1.378" x 3.1486" x 0.8268"
  • Bore Dia 1.378"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.1486"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.882"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.8268"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8268"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 1.63"
  • Cone Backface Backing Diameter 1.67"
  • Cup Frontface Backing Diameter 3.03"
  • Cup Backface Backing Diameter 2.87"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0"
  • Effective Center Location -0.25"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 339
  • Cup Part Number 333A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 335
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 21200 lbf
  • Static Radial Load 18700 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5490 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2570 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 1.2 lb

Features

How Does 339-333A Bearing Handle Combined Loads?

339-333A Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 21,200 lbf, ensuring reliable performance in demanding conditions.
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 various environments.

Application

Key Fields for 339-333A Bearing
339-333A Bearing is commonly used in industrial machinery, especially in heavy-duty applications like conveyor systems and gearboxes. Its tapered roller design handles combined loads effectively, making it a reliable choice for demanding environments.

In automotive applications, 339-333A Bearing supports axle assemblies and wheel hubs, where its durability ensures smooth performance. The inch sizing makes it compatible with many North American vehicle models.

For agricultural equipment, 339-333A Bearing’s chrome steel construction provides long-lasting performance in tractors and harvesters. The steel cage adds extra strength, ideal for rough operating conditions.

Where Is 339-333A Bearing Used?
339-333A Bearing is often found in construction machinery, such as excavators and cranes, where its robust design handles heavy radial and thrust loads. The open seal allows for easy lubrication in dusty environments.

In mining equipment, 339-333A Bearing’s tapered rollers ensure reliable operation under extreme loads. Its standard radial clearance makes it adaptable to various operational conditions.

Built for Heavy-Duty Use: 339-333A Bearing
339-333A Bearing excels in forestry equipment, like log splitters and sawmills, thanks to its high dynamic load capacity. The chrome steel rollers resist wear, even in harsh conditions.

For material handling systems, 339-333A Bearing’s single-row design simplifies installation and maintenance. Its ABEC-1 rating ensures consistent performance without unnecessary precision costs.

Automotive vs Aerospace: Applications of 339-333A Bearing
In automotive settings, 339-333A Bearing is ideal for drivetrain components, offering a balance of strength and affordability. The inch measurements align with many standard automotive designs.

While not typically used in aerospace, 339-333A Bearing finds its niche in ground support equipment. Its temperature range suits most non-critical aviation applications.

Q&A

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