+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
TS (Single Row Tapered Roller Bearings) (Imperial) 389-383A

TS (Single Row Tapered Roller Bearings) (Imperial) 389-383A

The 389-383A is a single-row tapered roller bearing with a 2.188″ bore and 3.937″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 24200 lbf radially and 3810 lbf thrust, making it versatile for various applications.

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

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

Weighing 1.5 lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 389-383A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.188" x 3.937" x 0.8268"
  • Bore Dia 2.188"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • 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 0.09"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.56"
  • Cup Frontface Backing Diameter 3.68"
  • Cup Backface Backing Diameter 3.50"
  • 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 389
  • Cup Part Number 383A
  • 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

Engineered for Precision: 389-383A Bearing

389-383A Bearing features a single row tapered roller design, ideal for handling combined loads with precision.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.

The bearing’s dynamic radial load capacity reaches 24,200 lbf, making it suitable for heavy-duty use.
With a standard radial clearance option, it offers flexibility for various operational needs.

389-383A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, contributing to smooth and reliable performance.

Designed for easy lubrication, 389-383A Bearing simplifies maintenance routines.
The open seal type allows for straightforward inspection and servicing when needed.

Application

Industrial Uses of 389-383A Bearing
The 389-383A Bearing is commonly used in heavy machinery like conveyor systems and industrial gearboxes, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in demanding environments.

Where Is 389-383A Bearing Used?
You’ll often find 389-383A Bearing in automotive applications, particularly in wheel hubs and differentials, where its robust design supports both radial and thrust loads. The inch sizing makes it a fit for many North American vehicle models.

Built for Heavy-Duty Use: 389-383A Bearing
In construction equipment, 389-383A Bearing excels in excavators and cranes, thanks to its high dynamic radial load capacity. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 389-383A Bearing
While 389-383A Bearing is popular in automotive systems, it also finds use in aerospace landing gear components, where precision and reliability are key. Its steel cage adds extra strength for high-stress conditions.

Key Fields for 389-383A Bearing
For agricultural machinery like tractors and harvesters, 389-383A Bearing provides reliable performance under heavy loads and harsh conditions. The standard radial clearance ensures smooth operation in varying temperatures.

Q&A

SEND INQUIRY