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TS (Single Row Tapered Roller Bearings) (Imperial) 6559C-6521

TS (Single Row Tapered Roller Bearings) (Imperial) 6559C-6521

The 6559C-6521 is a single-row tapered roller bearing with a 3.25″ bore and 6.3125″ outer diameter, crafted from robust chrome steel. It handles combined loads up to 98800 lbf radial and 17600 lbf thrust, making it suitable for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

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

Weighing 10.9 lb, it’s built to last while maintaining standard radial clearance. Compliant with RoHS and REACH standards for safe and environmentally friendly use.

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Product Parameters

  • Part Number 6559C-6521
  • Brand TFL
  • Interchangeable Timken
  • Size 3.25" x 6.3125" x 2.125"
  • Bore Dia 3.25"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.3125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 2.1693"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.125"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.56"
  • Cone Backface Backing Diameter 4.09"
  • Cup Frontface Backing Diameter 6.08"
  • Cup Backface Backing Diameter 5.55"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.15"
  • Effective Center Location -0.52"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 6559C
  • Cup Part Number 6521
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 6500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 98800 lbf
  • Static Radial Load 118000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 25600 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 17600 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 10.9 lb

Features

How Does 6559C-6521 Bearing Handle Combined Loads?

6559C-6521 Bearing is crafted with chrome steel rings and rollers, offering robust resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 98,800 lbf, ensuring dependable performance in demanding conditions.
The steel cage maintains roller alignment, reducing friction and enhancing longevity.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

Why Choose 6559C-6521 Bearing for Heavy-Duty Applications?

6559C-6521 Bearing features a single-row tapered roller design, ideal for handling combined loads efficiently.
The chrome steel construction provides excellent durability and wear resistance.
Its standard radial clearance and ABEC-1 rating ensure smooth operation in industrial settings.
With a static radial load capacity of 118,000 lbf, it excels in heavy-duty machinery.

Structural Advantages of 6559C-6521 Bearing

6559C-6521 Bearing’s precise cone and cup dimensions ensure optimal fit and performance.
The steel cage design minimises roller misalignment, reducing operational noise.
Its effective center location enhances load distribution, improving overall stability.
The bearing’s open design simplifies lubrication, extending maintenance intervals.

Built for Reliability: 6559C-6521 Bearing

6559C-6521 Bearing is engineered for long service life, even under high radial and thrust loads.
The chrome steel rollers and rings resist wear, maintaining performance over time.
Its standard radial clearance options provide flexibility for various applications.
With a weight of 10.9 lb, it balances strength and practicality in industrial use.

Steel vs Ceramic Bearings: Strengths of 6559C-6521 Bearing

6559C-6521 Bearing’s chrome steel construction offers superior strength and cost-effectiveness.
The tapered roller design ensures efficient load distribution and reduced friction.
Its dynamic thrust rating of 17,600 lbf makes it suitable for demanding applications.
The bearing’s compliance with RoHS and REACH standards ensures environmental safety.

Application

Industrial Uses of 6559C-6521 Bearing
6559C-6521 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 6559C-6521 Bearing supports axles and wheel hubs, providing reliable performance under varying loads. Its imperial sizing makes it a straightforward replacement for Timken bearings in many vehicles.

For industrial conveyor systems, 6559C-6521 Bearing’s open design allows easy lubrication, extending service life. The standard radial clearance offers flexibility for different operational needs.

Where Is 6559C-6521 Bearing Used?
6559C-6521 Bearing finds its place in agricultural machinery, particularly in gearboxes and PTO shafts. Its robust design handles the high torque and variable speeds typical in farming equipment.

In mining operations, 6559C-6521 Bearing’s ability to withstand heavy radial and thrust loads makes it ideal for crushers and screens. The steel cage adds extra strength in abrasive conditions.

Built for Heavy-Duty Use: 6559C-6521 Bearing
6559C-6521 Bearing is a go-to choice for forestry equipment like log splitters, where its tapered rollers manage intense shock loads. The chrome steel rollers resist wear over long periods.

In material handling systems, 6559C-6521 Bearing’s standard radial clearance ensures smooth operation under varying temperatures. Its compatibility with Timken models simplifies maintenance.

Automotive vs Aerospace: Applications of 6559C-6521 Bearing
In automotive settings, 6559C-6521 Bearing is often found in truck differentials, where its combined load capacity is crucial. The ABEC-1 rating balances precision and cost-effectiveness.

For aerospace ground support equipment, 6559C-6521 Bearing’s temperature range suits outdoor use. However, its weight makes it less ideal for airborne applications compared to specialised bearings.

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