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66586-66522D TDO (Two-Row Double-Outer Race) (Imperial)

66586-66522D TDO (Two-Row Double-Outer Race) (Imperial)

The 66586-66522D is a two-row tapered roller bearing with a 2.36″ bore and 5.12″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 60,500 lbf and is designed for long-lasting performance in demanding conditions.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 66500 series and comes with standard cups for straightforward installation. Ideal for heavy-duty applications like truck axles or industrial gearboxes where high radial and thrust loads are common.

Weighing 8.57 lb, it’s a robust choice for machinery requiring reliable performance. Compliant with RoHS and REACH standards, it’s a safe and durable option for various industrial uses.

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Product Parameters

  • Part Number 66586-66522D
  • Brand TFL
  • Size 2.3613" x 5.1174" x 1.25"
  • Bore Dia 2.3613"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.1174"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.875"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.25"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.7499"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.95"
  • Cup Frontface Backing Diameter 4.67"
  • Cage Cone Backface Clearance 0.18"
  • Dynamic Radial Load 60500 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 66586
  • Cup Part Number 66522D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 66500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 9010 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 10300 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 15700 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 8.57 lb

Features

How Is 66586-66522D Bearing Engineered for Reliability?

66586-66522D Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability and resistance to wear in demanding conditions.
With a dynamic radial load capacity of 60,500 lbf, it handles heavy-duty applications with ease.
The standard radial clearance and ABEC-1 rating offer reliable performance across various industrial uses.

What Makes 66586-66522D Bearing Suitable for High-Temperature Applications?

66586-66522D Bearing operates efficiently within a temperature range of -30° to 110°C, making it versatile for different environments.
The chrome steel rollers and rings maintain structural integrity even under thermal stress.
Its open design allows for effective lubrication, reducing friction and heat buildup.
This ensures consistent performance in both high and low-temperature settings.

Built for Durability: 66586-66522D Bearing

66586-66522D Bearing’s double-row construction enhances load distribution, extending its service life.
The steel cage keeps the rollers aligned, minimising wear and improving reliability.
Its precise tolerances, such as bore dia tolerance of +0.005″ to 0, ensure a secure fit.
This design reduces maintenance needs and operational downtime.

Steel vs Ceramic Bearings: Strengths of 66586-66522D Bearing

66586-66522D Bearing uses chrome steel for both rollers and rings, offering excellent strength and cost-effectiveness.
The material choice provides high resistance to wear and fatigue, suitable for heavy loads.
Unlike ceramic bearings, it balances performance and affordability in industrial applications.
Its steel cage further enhances durability and alignment under stress.

Application

Industrial Uses of 66586-66522D Bearing
The 66586-66522D Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in demanding environments.

What Makes 66586-66522D Bearing a Preferred Choice?
In automotive applications, 66586-66522D Bearing is ideal for wheel hubs and differential systems, thanks to its robust tapered roller design. The inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 66586-66522D Bearing
For industrial automation, 66586-66522D Bearing supports conveyor systems and robotic arms, where its open seal type allows for easy lubrication. The steel cage enhances stability under high-speed operations.

Light-Duty vs Heavy-Duty: Best Uses for 66586-66522D Bearing
In lighter applications like agricultural machinery, 66586-66522D Bearing provides reliable performance with standard radial clearance. For heavier loads, its dynamic radial rating ensures long-lasting operation.

Q&A

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