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TS (Single Row Tapered Roller Bearings) (Imperial) 389A-382

TS (Single Row Tapered Roller Bearings) (Imperial) 389A-382

The 389A-382 is a single-row tapered roller bearing with a 2.125″ bore and 3.875″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 24200 lbf radially and 3810 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, gearboxes, or automotive systems where combined loads are common.

Weighing 1.5 lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments.

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Product Parameters

  • Part Number 389A-382
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 3.875" x 0.8268"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.875"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.864"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.7018"
  • 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 2.36"
  • Cone Backface Backing Diameter 2.4"
  • Cup Frontface Backing Diameter 3.66"
  • Cup Backface Backing Diameter 3.54"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.03"
  • Effective Center Location -0.12"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 389A
  • Cup Part Number 382
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 385
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 24200 lbf
  • Static Radial Load 24100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6280 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3810 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 1.500 lb

Features

How Is 389A-382 Bearing Engineered for Reliability?

389A-382 Bearing features chrome steel rings and rollers, providing strong resistance to combined loads.
Its dynamic radial load capacity reaches 24,200 lbf, ensuring dependable performance in tough conditions.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

Structural Advantages of 389A-382 Bearing

389A-382 Bearing’s single-row tapered roller design efficiently handles both radial and thrust loads.
The precise cone and cup widths ensure smooth operation and easy installation.
Its standard radial clearance options (C3/C4/C5) offer flexibility for different applications.
The chrome steel construction enhances durability, even under heavy loads.

Why Choose 389A-382 Bearing for Precision Tasks?

389A-382 Bearing’s ABEC-1 rating ensures consistent performance in precision applications.
The effective center location of -0.12″ optimises load distribution for smoother operation.
Its dynamic thrust rating of 3,810 lbf at 90 million revolutions highlights long-term reliability.
The open design allows for easy lubrication, maintaining performance over time.

Application

Industrial Uses of 389A-382 Bearing
389A-382 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

What Makes 389A-382 Bearing a Preferred Choice?
In automotive applications, 389A-382 Bearing fits well in wheel hubs and differential systems, thanks to its precise inch sizing and robust load capacity. The open design simplifies lubrication, extending service life.

Built for Heavy-Duty Use: 389A-382 Bearing
For industrial fans and pumps, 389A-382 Bearing offers reliable performance with its standard radial clearance and ABEC-1 rating. Its steel cage provides stability during high-speed operations.

Automotive vs Aerospace: Applications of 389A-382 Bearing
While 389A-382 Bearing excels in truck transmissions, its inch measurements make it less common in aerospace. Still, it’s a go-to for ground vehicles needing combined load support.

Key Fields for 389A-382 Bearing
In conveyor systems, 389A-382 Bearing’s tapered rollers manage radial and thrust loads smoothly. The chrome steel rollers resist wear, reducing maintenance needs over time.

Q&A

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