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TS (Single Row Tapered Roller Bearings) (Imperial) 338-333A

TS (Single Row Tapered Roller Bearings) (Imperial) 338-333A

The 338-333A is a single-row tapered roller bearing with a 1-inch bore and 3.1486-inch outer diameter, crafted from durable chrome steel. It handles combined loads, with a dynamic radial load capacity of 17900 lbf and a static radial load of 18700 lbf.

Its open design allows for 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, making it a practical choice for replacements. Suitable for applications like automotive axles or industrial gearboxes where combined loads are common.

Weighing 1.400 lb, it offers a sturdy build for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 338-333A
  • Brand TFL
  • Interchangeable Timken
  • Size 1" x 3.1486" x 0.8268"
  • Bore Dia 1"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.1486"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.882"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.8268"
  • 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 1.36"
  • Cone Backface Backing Diameter 1.4"
  • Cup Frontface Backing Diameter 3.03"
  • Cup Backface Backing Diameter 2.87"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0"
  • Effective Center Location -0.25"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 338
  • Cup Part Number 333A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 335
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 17900 lbf
  • Static Radial Load 18700 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 4640 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2170 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 338-333A Bearing

338-333A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 17900 lbf, ensuring reliable performance in various applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in diverse environments.

How Does 338-333A Bearing Reduce Friction?

338-333A Bearing’s tapered roller design minimises friction, promoting smooth operation under heavy loads.
The chrome steel construction enhances durability while maintaining efficient performance.
Its standard radial clearance allows for optimal lubrication, further reducing wear.
This design ensures consistent reliability in both radial and thrust load scenarios.

Engineered for Precision: 338-333A Bearing

338-333A Bearing features precise cone and cup dimensions for accurate alignment in machinery.
The ABEC-1 rating confirms its consistent performance in industrial applications.
With a dynamic thrust rating of 2170 lbf, it handles axial loads effectively.
Its inch-sized measurements make it compatible with imperial system equipment.

Steel vs Ceramic Bearings: Strengths of 338-333A Bearing

338-333A Bearing’s chrome steel construction provides excellent strength-to-weight ratio.
The material choice ensures reliable performance without the brittleness of ceramic options.
It maintains structural integrity under heavy dynamic radial loads up to 17900 lbf.
The steel cage offers robust support while allowing for necessary lubrication.

Why Choose 338-333A Bearing for Precision Tasks?

338-333A Bearing’s tapered rollers distribute loads evenly, enhancing precision in operation.
The precise tolerances on cone and cup widths ensure consistent performance.
Its effective center location of -0.25″ optimises load distribution across components.
The standard radial clearance allows for smooth rotation in precision applications.

Application

Industrial Uses of 338-333A Bearing
The 338-333A Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability even in tough working conditions.

Where Is 338-333A Bearing Used?
You’ll often find the 338-333A Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for older or custom-built vehicles needing imperial measurements.

Built for Heavy-Duty Use: 338-333A Bearing
In industrial settings, the 338-333A Bearing excels in conveyor systems and gearboxes, thanks to its high dynamic radial load capacity. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 338-333A Bearing
While the 338-333A Bearing is popular in automotive wheel assemblies, it’s also suitable for aerospace ground support equipment. Its ABEC-1 rating ensures consistent performance without over-engineering for less critical applications.

What Makes 338-333A Bearing a Preferred Choice?
The 338-333A Bearing’s steel cage and chrome steel rollers make it a go-to for mining equipment, where dust and debris are common. Its standard radial clearance offers a balance of precision and durability.

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