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TS (Single Row Tapered Roller Bearings) (Imperial) 438-432A

TS (Single Row Tapered Roller Bearings) (Imperial) 438-432A

The 438-432A is a single row tapered roller bearing with a 1.75″ bore and 3.75″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 28500 lbf radially and 3600 lbf thrust, suitable for demanding applications.

Its open design allows for 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, making it a practical choice for replacements. Ideal for use in heavy machinery or automotive systems where combined loads are common.

Weighing 2.1 lb, it offers a robust build for its size. Compliant with RoHS and REACH standards for safe and reliable performance.

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Product Parameters

  • Part Number 438-432A
  • Brand TFL
  • Interchangeable Timken
  • Size 1.75" x 3.75" x 1.0938"
  • Bore Dia 1.75"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.75"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1772"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.0938"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.01"
  • Cone Backface Backing Diameter 2.24"
  • Cup Frontface Backing Diameter 3.46"
  • Cup Backface Backing Diameter 3.31"
  • Cage Cone Frontface Clearance 0.05"
  • Cage Cone Backface Clearance 0.04"
  • Effective Center Location -0.36"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 438
  • Cup Part Number 432A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 435
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 28500 lbf
  • Static Radial Load 32400 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 7400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3600 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 2.1 lb

Features

Why Choose 438-432A Bearing for Combined Loads?

438-432A Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 28,500 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 438-432A Bearing Engineered for Reliability?

438-432A Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction enhances durability, while the standard radial clearance allows for smooth operation.
Its dynamic thrust rating of 3,600 lbf ensures consistent performance under pressure.
The open seal design simplifies maintenance, reducing downtime.

Built for Durability: 438-432A Bearing

438-432A Bearing’s robust chrome steel components provide long-lasting performance in demanding conditions.
The tapered roller design efficiently distributes loads, minimising wear and tear.
With a static radial load capacity of 32,400 lbf, it handles heavy loads with ease.
Its ABEC-1 rating ensures reliable precision for various industrial applications.

Application

Industrial Uses of 438-432A Bearing
The 438-432A 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 demanding environments.

Why Is 438-432A Bearing Essential in Machinery?
In automotive applications, 438-432A Bearing supports axles and wheel hubs, providing reliable performance under radial and thrust loads. The inch sizing makes it a preferred choice for North American vehicle manufacturers.

Built for Heavy-Duty Use: 438-432A Bearing
This bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 438-432A Bearing
While 438-432A Bearing is widely used in truck transmissions, its precision also makes it suitable for aerospace ground support equipment. The ABEC-1 rating ensures consistent performance in both fields.

Perfect Fit for Automation: 438-432A Bearing
In conveyor systems and packaging machines, 438-432A Bearing offers smooth operation with minimal maintenance. Its standard radial clearance adapts well to varying load conditions in automated setups.

Q&A

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