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TS (Single Row Tapered Roller Bearings) (Imperial) 385-383A

TS (Single Row Tapered Roller Bearings) (Imperial) 385-383A

The 385-383A is a single-row tapered roller bearing with a 2.1654″ bore and 3.937″ outer diameter, crafted from sturdy 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 durability. 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 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.

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Product Parameters

  • Part Number 385-383A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.1654" x 3.937" x 0.8268"
  • Bore Dia 2.1654"
  • 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 385
  • 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

Performance Features of 385-383A Bearing

385-383A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 24,200 lbf, making it suitable for demanding applications.
The steel cage ensures proper roller alignment, reducing friction and wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 385-383A Bearing Reduce Friction?

385-383A Bearing’s tapered roller design minimises friction, ensuring smooth operation under heavy loads.
The precision-engineered chrome steel rollers and cage work together to reduce wear.
Its effective centre location of -0.12″ helps maintain stability during rotation.
This design also contributes to lower maintenance needs over time.

Engineered for Precision: 385-383A Bearing

385-383A Bearing features precise tolerances, with bore diameter tolerance of +0.005″ to 0.
The tapered roller construction provides accurate load distribution for consistent performance.
Its ABEC-1 rating ensures reliable operation in various industrial applications.
The standard radial clearance option allows for flexibility in different setups.

Steel vs Ceramic Bearings: Strengths of 385-383A Bearing

385-383A Bearing uses chrome steel for both rings and rollers, offering durability and cost-effectiveness.
This material choice provides excellent resistance to wear and fatigue under heavy loads.
The steel cage further enhances the bearing’s stability and alignment.
With a dynamic thrust rating of 3,810 lbf, it handles combined loads efficiently.

Application

Industrial Uses of 385-383A Bearing
385-383A Bearing is commonly used in heavy machinery, such as 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 385-383A Bearing a Preferred Choice?
In automotive applications, 385-383A Bearing fits well in wheel hubs and differential systems, thanks to its precise inch sizing and robust load capacity. Its open design simplifies lubrication, extending service life.

Built for Heavy-Duty Use: 385-383A Bearing
For industrial conveyor systems, 385-383A Bearing offers reliable performance under continuous radial and thrust loads. The steel cage adds stability, making it suitable for high-use scenarios.

Automotive vs Aerospace: Applications of 385-383A Bearing
While 385-383A Bearing excels in truck axles and off-road vehicles, its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance across varied conditions.

Key Fields for 385-383A Bearing
In mining equipment, 385-383A Bearing withstands harsh conditions due to its high dynamic radial load rating. The standard radial clearance options allow for flexibility in different setups.

Q&A

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