+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
TS (Single Row Tapered Roller Bearings) (Imperial) 4388-4320

TS (Single Row Tapered Roller Bearings) (Imperial) 4388-4320

The 4388-4320 is a single-row tapered roller bearing with a 1.625″ bore and 3.4843″ outer diameter, crafted from sturdy chrome steel. It handles combined loads with a dynamic radial capacity of 44700 lbf and spins smoothly under heavy use.

Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing operates well in temperatures ranging from -30°C to 110°C, making it versatile for various conditions.

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

Weighing 2.6 lb, it’s robust yet manageable for its size. 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 4388-4320
  • Brand TFL
  • Interchangeable Timken
  • Size 1.625" x 3.4843" x 1.5626"
  • Bore Dia 1.625"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.4843"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.59"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.3125"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.5626"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.05"
  • Cone Backface Backing Diameter 2.36"
  • Cup Frontface Backing Diameter 3.34"
  • Cup Backface Backing Diameter 2.99"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.59"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 4388
  • Cup Part Number 4320
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 4300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 44700 lbf
  • Static Radial Load 45900 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 11600 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5640 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 2.6 lb

Features

Performance Features of 4388-4320 Bearing

4388-4320 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 44,700 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

How Is 4388-4320 Bearing Engineered for Reliability?

4388-4320 Bearing features a single-row tapered roller design, providing stable performance under combined loads.
The chrome steel construction enhances durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 5,640 lbf at 90 million revolutions highlights its long-term reliability.
This bearing is interchangeable with Timken models, offering flexibility in replacement options.

Designed for Durability: 4388-4320 Bearing

4388-4320 Bearing’s chrome steel rollers and rings resist wear, even under high radial loads.
The steel cage maintains roller positioning, reducing operational noise and vibration.
With a static radial load capacity of 45,900 lbf, it handles demanding industrial applications.
Its ABEC-1 rating ensures consistent precision in performance.

Steel vs Ceramic Bearings: Strengths of 4388-4320 Bearing

4388-4320 Bearing uses chrome steel for both rollers and rings, balancing cost and performance.
This material choice provides excellent strength and wear resistance in industrial settings.
The bearing’s dynamic radial rating of 11,600 lbf at 90 million revolutions demonstrates its longevity.
Its standard lubrication requirement ensures easy maintenance and consistent operation.

Why Choose 4388-4320 Bearing for Precision Tasks?

4388-4320 Bearing’s tapered roller design offers precise load distribution for combined forces.
The precise tolerances on bore and outer diameters ensure accurate fit and performance.
With an effective center location of -0.59″, it provides stable operation in mounted applications.
Its compatibility with Timken bearings makes it a practical choice for various machinery needs.

Application

Common Applications of 4388-4320 Bearing
You’ll often spot 4388-4320 Bearing in heavy machinery like construction equipment, where its tapered roller design handles both radial and thrust loads effortlessly. The chrome steel construction gives it excellent durability for tough working conditions.
In automotive applications, 4388-4320 Bearing works well in wheel hubs and differential systems, thanks to its combined load capacity. The imperial sizing makes it a straightforward replacement for many American-made vehicles.
For industrial gearboxes, 4388-4320 Bearing’s single row design provides reliable performance in compact spaces. Its standard radial clearance offers good flexibility for various operating temperatures and speeds.

What Makes 4388-4320 Bearing a Preferred Choice?
Farm equipment frequently uses 4388-4320 Bearing for its ability to withstand heavy loads in harvesters and tractors. The steel cage adds extra strength for these demanding applications.
You’ll also find 4388-4320 Bearing in mining machinery, where its ABEC-1 rating provides sufficient precision for most extraction equipment. The open design simplifies lubrication in dusty environments.

Built for Heavy-Duty Use: 4388-4320 Bearing
Railway applications benefit from 4388-4320 Bearing’s robust construction in axle boxes and traction motors. The tapered rollers effectively manage the dynamic loads experienced during train operation.
In material handling systems, 4388-4320 Bearing performs reliably in conveyor pulleys and lifting equipment. Its temperature range covers most warehouse and factory conditions without issues.

Automotive vs Industrial: Applications of 4388-4320 Bearing
For truck transmissions, 4388-4320 Bearing offers dependable performance with its 45900 lbf static load capacity. The Timken interchangeability makes maintenance simpler for fleet operators.
In industrial pumps, 4388-4320 Bearing’s chrome steel rollers provide long service life even with continuous operation. The standard width fits common pump designs without modification.

Q&A

SEND INQUIRY