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TS (Single Row Tapered Roller Bearings) (Imperial) 3387-3321

TS (Single Row Tapered Roller Bearings) (Imperial) 3387-3321

The 3387-3321 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 for 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’s a safe choice for diverse environments.

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Product Parameters

  • Part Number 3387-3321
  • 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 0.03"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.75"
  • Cone Backface Backing Diameter 1.77"
  • 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 3387
  • 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 3387-3321 Bearing

3387-3321 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 25,800 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 3387-3321 Bearing Engineered for Reliability?

3387-3321 Bearing features a tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction provides excellent strength and wear resistance.
Its standard radial clearance ensures smooth operation, while the ABEC-1 rating guarantees consistent performance.
This bearing is interchangeable with Timken models, offering flexibility in replacements.

Designed for Durability: 3387-3321 Bearing

3387-3321 Bearing’s single-row construction ensures stability under high combined loads.
The precise cone and cup dimensions, with tight tolerances, enhance its reliability.
It requires lubrication to maintain optimal performance over its long service life.
Weighing 1.400 lb, it balances robustness with manageable installation.

Application

Industrial Uses of 3387-3321 Bearing
3387-3321 Bearing is commonly used in heavy machinery like construction equipment and agricultural tractors, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in tough working conditions.

In automotive applications, 3387-3321 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many American-made vehicles.

For industrial gearboxes, 3387-3321 Bearing’s single-row design offers precise alignment and smooth operation. The steel cage adds strength, making it suitable for high-load scenarios.

Where Is 3387-3321 Bearing Used?
You’ll often find 3387-3321 Bearing in conveyor systems, where its ability to handle radial and thrust loads keeps things running smoothly. The open seal design allows for easy lubrication.

In mining equipment, 3387-3321 Bearing’s robust construction withstands harsh environments. Its standard radial clearance ensures consistent performance over long periods.

Built for Heavy-Duty Use: 3387-3321 Bearing
3387-3321 Bearing excels in applications like crane hooks and lifting systems, where combined loads are common. The tapered rollers distribute stress evenly, reducing wear.

For railway applications, 3387-3321 Bearing’s durability and temperature tolerance make it a reliable choice. Its ABEC-1 rating ensures adequate precision for most industrial needs.

Automotive vs Aerospace: Applications of 3387-3321 Bearing
In automotive settings, 3387-3321 Bearing is ideal for drivetrain components, offering balance between load capacity and size. The inch measurements simplify replacements.

For aerospace ground equipment, 3387-3321 Bearing provides dependable performance in tow tractors and loading systems. Its chrome steel rollers resist wear from frequent use.

Q&A

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