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TS (Single Row Tapered Roller Bearings) (Imperial) 3381-3321

TS (Single Row Tapered Roller Bearings) (Imperial) 3381-3321

The 3381-3321 is a single-row tapered roller bearing with a 1.5″ bore and 3.0525″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 25800 lbf radially and 3130 lbf in thrust, making it versatile for various applications.

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

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

Weighing 1.4 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets essential safety and environmental requirements.

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Product Parameters

  • Part Number 3381-3321
  • Brand TFL
  • Interchangeable Timken
  • Size 1.5" x 3.0525" x 1.1563"
  • Bore Dia 1.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.0525"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1965"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1563"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.75"
  • Cone Backface Backing Diameter 2.01"
  • Cup Frontface Backing Diameter 2.95"
  • Cup Backface Backing Diameter 2.68"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.43"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3381
  • Cup Part Number 3321
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 25800 lbf
  • Static Radial Load 29100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3130 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 1.400 lb

Features

Performance Features of 3381-3321 Bearing

3381-3321 Bearing is crafted with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 25,800 lbf, ensuring reliable performance in various applications.

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

3381-3321 Bearing’s standard radial clearance allows for flexibility in different setups.
Its ABEC-1 rating ensures consistent precision for general industrial use.

Application

Common Applications of 3381-3321 Bearing
In industrial settings, 3381-3321 Bearing is widely used in heavy machinery like conveyor systems and gearboxes, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

For automotive applications, 3381-3321 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it compatible with many North American vehicle models.

In automation equipment, 3381-3321 Bearing supports robotic arms and assembly lines, where precision and load capacity are key. The open design allows for easy lubrication, extending service life in high-use scenarios.

Where Is 3381-3321 Bearing Used?
You’ll often find 3381-3321 Bearing in agricultural machinery, such as tractors and harvesters, where it handles heavy radial and thrust loads. Its steel cage adds robustness for long-term use.

The bearing also works well in construction equipment like excavators, thanks to its ability to withstand shock loads. The standard radial clearance ensures smooth operation in varying temperatures.

Built for Heavy-Duty Use: 3381-3321 Bearing
3381-3321 Bearing is a go-to choice for mining equipment, where its tapered rollers manage extreme loads effortlessly. The chrome steel rollers resist wear, even in abrasive conditions.

Its compatibility with Timken models makes it a versatile option for maintenance and replacements. The ABEC-1 rating ensures consistent performance without over-engineering.

Automotive vs Aerospace: Applications of 3381-3321 Bearing
In automotive systems, 3381-3321 Bearing excels in transmissions and axles, offering a balance of strength and precision. The inch measurements simplify integration with existing designs.

For aerospace ground support equipment, this bearing provides reliable performance in load-handling systems. Its temperature range suits both indoor and outdoor applications.

Q&A

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