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66588-66522D TDO (Two-Row Double-Outer Race) (Imperial)

66588-66522D TDO (Two-Row Double-Outer Race) (Imperial)

The 66588-66522D is a double-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 18,600 lbf and is designed for long-lasting performance.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation even under heavy loads. The bearing works well in temperatures from -30°C to 110°C.

This model features a standard radial clearance and is ABEC-1 rated, making it suitable for general industrial use. Ideal for applications like gearboxes or heavy machinery where combined loads are common.

Weighing 8.57 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 66588-66522D
  • Brand TFL
  • Size 2.3622" x 5.1174" x 1.25"
  • Bore Dia 2.3622"
  • 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 2.91"
  • Cup Frontface Backing Diameter 4.67"
  • Cage Cone Backface Clearance 0.18"
  • Dynamic Radial Load 71700 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 66588
  • 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) 10700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 12200 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 18600 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

Performance Features of 66588-66522D Bearing

66588-66522D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 71,700 lbf, ensuring reliable performance in demanding applications.

The double-row tapered roller design distributes loads evenly, enhancing durability and reducing wear.
With a standard radial clearance, it provides flexibility for various operating conditions.

66588-66522D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, contributing to smooth and stable operation.

The open seal design allows for easy lubrication, ensuring consistent performance over time.
Weighing 8.57 lb, it balances strength and practicality for industrial use.

Application

Key Fields for 66588-66522D Bearing
The 66588-66522D Bearing is widely 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, making it a reliable choice for industrial applications.

Where Is 66588-66522D Bearing Used?
You’ll often find the 66588-66522D Bearing in automotive differentials and wheel hubs, where its tapered roller design provides smooth performance under heavy loads.
The imperial sizing makes it a perfect fit for North American machinery, ensuring easy integration.

Built for Heavy-Duty Use: 66588-66522D Bearing
In agricultural machinery, the 66588-66522D Bearing supports high-load applications like tractor axles, thanks to its robust steel cage and chrome steel rollers.
The open seal design allows for easy lubrication, extending its service life in dusty or wet conditions.

Automotive vs Aerospace: Applications of 66588-66522D Bearing
While the 66588-66522D Bearing excels in automotive drivetrains, its precision also makes it suitable for aerospace landing gear components.
The ABEC-1 rating ensures consistent performance, whether on the road or in the air.

Practical Applications of 66588-66522D Bearing
For conveyor systems in warehouses, the 66588-66522D Bearing offers reliable performance with its standard radial clearance and dynamic load capacity.
Its steel cage and chrome steel rollers reduce wear, even in continuous operation.

Q&A

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