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TS (Single Row Tapered Roller Bearings) (Imperial) 78255X-78571

TS (Single Row Tapered Roller Bearings) (Imperial) 78255X-78571

The 78255X-78571 is a single-row tapered roller bearing with a 2.56″ bore and 5.71″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 45600 lbf radially and 17500 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 machinery or automotive uses where combined loads are common.

Weighing 5.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial environments.

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Product Parameters

  • Part Number 78255X-78571
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5586" x 5.708" x 1.4173"
  • Bore Dia 2.5586"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.708"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.2962"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9058"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.4173"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.140"
  • Cone Frontface Backing Diameter 3.78"
  • Cone Backface Backing Diameter 3.5"
  • Cup Frontface Backing Diameter 5.22"
  • Cup Backface Backing Diameter 4.65"
  • Cage Cone Frontface Clearance 0.22"
  • Cage Cone Backface Clearance 0.24"
  • Effective Center Location 0.31"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 78255X
  • Cup Part Number 78571
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 78000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 45600 lbf
  • Static Radial Load 43400 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 11800 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 17500 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 5.6 lb

Features

Why Choose 78255X-78571 Bearing for Combined Loads?

78255X-78571 Bearing features a single-row tapered roller design, ideal for handling both radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 45,600 lbf.

The steel cage maintains roller alignment, reducing friction and extending service life.
With a standard radial clearance, it offers reliable performance in various industrial applications.

Operating within a temperature range of -30° to 110°C, it suits diverse environmental conditions.
The open design simplifies lubrication, ensuring smooth operation over long periods.

Application

Industrial Uses of 78255X-78571 Bearing
78255X-78571 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 78255X-78571 Bearing Used?
In automotive applications, 78255X-78571 Bearing supports wheel hubs and axles, providing reliable performance under varying loads. Its inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 78255X-78571 Bearing
78255X-78571 Bearing excels in industrial gearboxes, where its single-row design simplifies maintenance. The steel cage adds strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 78255X-78571 Bearing
78255X-78571 Bearing is versatile, fitting both automotive drivetrains and aerospace landing gear systems. Its ABEC-1 rating ensures consistent performance across different industries.

Practical Applications of 78255X-78571 Bearing
78255X-78571 Bearing is ideal for conveyor systems, where its tapered rollers manage radial and thrust loads smoothly. The standard radial clearance allows for easy integration into existing setups.

Q&A

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