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TS (Single Row Tapered Roller Bearings) (Imperial) 78250-78551

TS (Single Row Tapered Roller Bearings) (Imperial) 78250-78551

The 78250-78551 is a single-row tapered roller bearing with a 2.5″ bore and 5.513″ 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 for easy lubrication, while the steel cage ensures durability under heavy use. 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 industrial machinery or automotive systems where combined loads are common.

Weighing 5.3 lb, it offers a robust build for its size. Compliant with RoHS and REACH standards, it’s safe for various uses.

The standard radial clearance and ABEC-1 rating ensure reliable performance. Its tapered roller design provides efficient load distribution, enhancing longevity in high-stress environments.

Perfect for applications requiring precise alignment and heavy-duty support, such as gearboxes or axle systems. The bearing’s construction ensures stability and ease of maintenance over time.

With its durable materials and versatile design, it’s a dependable option for both new installations and replacements. The clearances and tolerances are designed for straightforward installation and consistent operation.

Suitable for environments where temperature fluctuations and heavy loads are expected. Its compatibility with standard lubrication methods simplifies upkeep.

A solid choice for engineers and maintenance teams looking for a balance of strength and ease of use. The bearing’s dimensions and load ratings make it adaptable to various mechanical setups.

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    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 78250-78551
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 5.513" x 1.4375"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.513"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.3085"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.926"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.4375"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.090"
  • Cone Frontface Backing Diameter 3.75"
  • Cone Backface Backing Diameter 3.35"
  • Cup Frontface Backing Diameter 5.22"
  • Cup Backface Backing Diameter 4.61"
  • Cage Cone Frontface Clearance 0.2"
  • Cage Cone Backface Clearance 0.24"
  • Effective Center Location 0.31"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 78250
  • Cup Part Number 78551
  • 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 5.3 lb

Features

How Is 78250-78551 Bearing Engineered for Reliability?

78250-78551 Bearing features chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its dynamic radial load capacity reaches 45,600 lbf, making it suitable for heavy-duty applications.
The steel cage maintains proper roller alignment, reducing friction and wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Structural Advantages of 78250-78551 Bearing

78250-78551 Bearing’s tapered roller design efficiently handles both radial and thrust loads.
The precise cone and cup dimensions ensure smooth operation and easy installation.
Chrome steel construction enhances resistance to wear, extending the bearing’s service life.
Standard radial clearance options provide flexibility for different application needs.

Why Choose 78250-78551 Bearing for Precision Tasks?

78250-78551 Bearing offers accurate performance with its ABEC-1 rating and standard radial clearance.
The effective center location of 0.31″ ensures stable operation under combined loads.
Its chrome steel rollers and rings provide consistent performance in demanding environments.
The open design allows for easy lubrication, maintaining optimal functionality.

Application

Industrial Uses of 78250-78551 Bearing
The 78250-78551 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 in harsh environments, making it a reliable choice for long-term use.

What Makes 78250-78551 Bearing a Preferred Choice?
In automotive applications, 78250-78551 Bearing supports wheel hubs and differential systems, providing smooth performance under high stress.
The inch sizing makes it compatible with many North American vehicles, simplifying replacements and maintenance.

Built for Heavy-Duty Use: 78250-78551 Bearing
For industrial fans and pumps, 78250-78551 Bearing offers stability and resistance to wear, even in continuous operation.
The open design allows for easy lubrication, extending the bearing’s service life in demanding conditions.

Automotive vs Industrial: Applications of 78250-78551 Bearing
In trucks and buses, 78250-78551 Bearing handles heavy radial and thrust loads, ensuring reliable performance.
Its standard radial clearance options make it versatile for various industrial and automotive needs.

Key Fields for 78250-78551 Bearing
78250-78551 Bearing is ideal for conveyor systems, where its tapered rollers manage both radial and axial forces efficiently.
The steel cage adds strength, making it suitable for high-load scenarios in manufacturing plants.

Q&A

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