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TS (Single Row Tapered Roller Bearings) (Imperial) 438-433

TS (Single Row Tapered Roller Bearings) (Imperial) 438-433

The 438-433 is a single-row tapered roller bearing with a 1.75″ bore and 3.4843″ 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 easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures 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 heavy-duty machinery or automotive systems where combined loads are common.

Weighing 1.900 lb, it balances strength and practicality. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

The standard radial clearance (with options for C3/C4/C5) provides flexibility for different setups. Its ABEC-1 rating ensures consistent performance for general industrial use.

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Product Parameters

  • Part Number 438-433
  • Brand TFL
  • Interchangeable Timken
  • Size 1.75" x 3.4843" x 1.4065"
  • Bore Dia 1.75"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.4843"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1772"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.1875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.4065"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.01"
  • Cone Backface Backing Diameter 2.24"
  • Cup Frontface Backing Diameter 3.34"
  • Cup Backface Backing Diameter 3.03"
  • 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 433
  • 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 1.900 lb

Features

Performance Features of 438-433 Bearing

438-433 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 28,500 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.

438-433 Bearing requires lubrication, which helps maintain smooth operation over time.
Its standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 438-433 Bearing
438-433 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in rugged conditions.

In automotive applications, 438-433 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a straightforward replacement for Timken equivalents in older vehicles.

For industrial fans and pumps, 438-433 Bearing’s open design simplifies lubrication, extending service life in continuous operation. The standard radial clearance offers flexibility for different installation requirements.

Where Is 438-433 Bearing Used?
You’ll often find 438-433 Bearing in conveyor systems, where its ability to manage radial and thrust loads keeps operations smooth. The steel cage adds stability during high-speed rotations.

In mining equipment, 438-433 Bearing withstands harsh environments thanks to its robust chrome steel rollers. The ABEC-1 rating ensures consistent performance without over-engineering for most industrial needs.

Built for Heavy-Duty Use: 438-433 Bearing
438-433 Bearing excels in gearboxes and drivetrains, where its single-row tapered rollers distribute loads evenly. The inch measurements make it compatible with a wide range of North American machinery.

For forestry equipment, 438-433 Bearing’s temperature tolerance (-30° to 110°C) ensures reliability in extreme weather. Its standard lubrication requirement is easy to maintain in field conditions.

Automotive vs Aerospace: Applications of 438-433 Bearing
In automotive repairs, 438-433 Bearing is a go-to for vintage car restorations due to its Timken interchangeability. The static radial load capacity (32,400 lbf) handles classic vehicle weights comfortably.

For aerospace ground support equipment, 438-433 Bearing’s precision meets basic operational demands without unnecessary complexity. The steel cage prevents deformation during frequent load changes.

Q&A

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