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TS (Single Row Tapered Roller Bearings) (Imperial) DX256794-DX591899

TS (Single Row Tapered Roller Bearings) (Imperial) DX256794-DX591899

The DX256794-DX591899 is a single-row tapered roller bearing with a 4.5″ bore and 8.375″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 188,000 lbf radially and 27,200 lbf thrust, making it robust for heavy-duty use.

Its open design allows easy lubrication, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for industrial machinery or automotive applications where high radial and thrust loads are common.

Weighing 21.9 lb, it’s built to last with standard radial clearance options. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number DX256794-DX591899
  • Brand TFL
  • Interchangeable Timken
  • Size 4.5" x 8.375" x 2.6251"
  • Bore Dia 4.5"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 8.375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 2.625"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 2.125"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.6251"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.280"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 6.14"
  • Cone Backface Backing Diameter 5.63"
  • Cup Frontface Backing Diameter 7.95"
  • Cup Backface Backing Diameter 7.56"
  • Cage Cone Frontface Clearance 0.15"
  • Cage Cone Backface Clearance 0.16"
  • Effective Center Location -0.74"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number DX256794
  • Cup Part Number DX591899
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series DX
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 188000 lbf
  • Static Radial Load 204000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 48800 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 27200 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 21.900 lb

Features

Performance Features of DX256794-DX591899 Bearing

DX256794-DX591899 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 188,000 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

How Does DX256794-DX591899 Bearing Reduce Friction?

DX256794-DX591899 Bearing features precision-engineered tapered rollers that minimise friction during operation.
The chrome steel construction ensures smooth movement even under high radial or thrust loads.
Its standard radial clearance allows for optimal performance without excessive heat generation.
Proper lubrication further enhances its efficiency and reduces wear over time.

Engineered for Precision: DX256794-DX591899 Bearing

DX256794-DX591899 Bearing’s single row tapered design provides accurate load distribution and alignment.
The precise cone and cup dimensions maintain consistent performance throughout its service life.
With ABEC-1 rating, it meets strict standards for industrial applications requiring reliable rotation.
Its effective center location of -0.74″ ensures proper fitment in compatible machinery.

Steel vs Ceramic Bearings: Strengths of DX256794-DX591899 Bearing

DX256794-DX591899 Bearing uses chrome steel for both rings and rollers, offering excellent durability.
This material choice provides better impact resistance compared to ceramic alternatives in heavy-load scenarios.
The steel construction maintains dimensional stability across its operating temperature range.
At 21.9 lb, it balances robust construction with practical weight for industrial applications.

Application

Industrial Uses of DX256794-DX591899 Bearing
DX256794-DX591899 Bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in tough working conditions.

Where Is DX256794-DX591899 Bearing Used?
You’ll often find DX256794-DX591899 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its imperial sizing makes it a good fit for North American vehicle models.

Built for Heavy-Duty Use: DX256794-DX591899 Bearing
DX256794-DX591899 Bearing excels in industrial gearboxes, providing reliable performance under high radial and thrust loads. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of DX256794-DX591899 Bearing
In automotive systems, DX256794-DX591899 Bearing supports heavy loads in axles and transmissions. For aerospace, it’s less common but can be found in ground support equipment.

Practical Applications of DX256794-DX591899 Bearing
DX256794-DX591899 Bearing is a solid choice for agricultural machinery, such as tractors and harvesters. Its robust design handles the dirt and debris typical in farming environments.

Q&A

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