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TS (Single Row Tapered Roller Bearings) (Imperial) 25577-25521

TS (Single Row Tapered Roller Bearings) (Imperial) 25577-25521

The 25577-25521 is a single-row tapered roller bearing with a 1.688″ bore and 3.27″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 20300 lbf radially and 3020 lbf in thrust, making it versatile for various applications.

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

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing 1.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 25577-25521
  • Brand TFL
  • Interchangeable Timken
  • Size 1.688" x 3.27" x 0.9376"
  • Bore Dia 1.688"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.27"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.9376"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.93"
  • Cone Backface Backing Diameter 2.17"
  • Cup Frontface Backing Diameter 3.05"
  • Cup Backface Backing Diameter 2.83"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location -0.25"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 25577
  • Cup Part Number 25521
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 25500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 20300 lbf
  • Static Radial Load 24900 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5270 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3020 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 1.3 lb

Features

How Is 25577-25521 Bearing Engineered for Reliability?

25577-25521 Bearing features chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its dynamic radial load capacity reaches 20,300 lbf, making it suitable for heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

What Makes 25577-25521 Bearing Suitable for High-Temperature Applications?

25577-25521 Bearing operates efficiently in temperatures ranging from -30° to 110°C, maintaining performance under stress.
The chrome steel construction resists wear, even in demanding conditions.
Its standard radial clearance options (C3/C4/C5) allow for flexibility in different applications.
This bearing is designed to handle both radial and thrust loads with ease.

Designed for Durability: 25577-25521 Bearing

25577-25521 Bearing is built with high-quality chrome steel for long-lasting performance.
The tapered roller design efficiently manages combined loads, reducing stress on components.
Its dynamic thrust rating of 3,020 lbf ensures reliable operation in various settings.
The open seal type allows for easy lubrication, enhancing maintenance convenience.

Application

Industrial Uses of 25577-25521 Bearing
25577-25521 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 25577-25521 Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it a go-to choice for American-made vehicles.

For industrial conveyor systems, 25577-25521 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 25577-25521 Bearing Used?
You’ll often find 25577-25521 Bearing in mining equipment, where its robust design withstands harsh conditions. The tapered rollers distribute loads evenly, reducing wear over time.

In railway applications, 25577-25521 Bearing supports axle boxes, ensuring smooth movement under heavy loads. Its ABEC-1 rating provides a balance of precision and affordability for these uses.

Built for Heavy-Duty Use: 25577-25521 Bearing
25577-25521 Bearing excels in forestry machinery, handling both radial and thrust loads with ease. The standard radial clearance offers flexibility for various operating conditions.

In power transmission systems, 25577-25521 Bearing’s chrome steel rollers provide consistent performance. Its temperature range of -30° to 110°C makes it versatile for different climates.

Automotive vs Aerospace: Applications of 25577-25521 Bearing
In automotive systems, 25577-25521 Bearing is ideal for drivetrains, offering reliable load capacity. Its inch measurements align with many US-manufactured components.

For aerospace ground support equipment, 25577-25521 Bearing’s durability stands out. While not for flight use, it’s trusted in maintenance tools and loading systems.

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