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663A-654DC TDO (Two-Row Double-Outer Race) (Imperial)

663A-654DC TDO (Two-Row Double-Outer Race) (Imperial)

The 663A-654DC is a double-row tapered roller bearing with a 3.25″ bore and 6″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 96,700 lbf and suits applications needing robust radial and thrust support.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C, making it versatile for various conditions.

With standard radial clearance and ABEC-1 precision, it’s a reliable choice for heavy-duty machinery. Ideal for industrial equipment like gearboxes or conveyors where high load capacity is essential.

Weighing 14.96 lb, it’s solidly built for long-term use. Compliant with RoHS and REACH standards for safety and environmental care.

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Product Parameters

  • Part Number 663A-654DC
  • Brand TFL
  • Size 3.25" x 6" x 1.625"
  • Bore Dia 3.25"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 3"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.625"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.7499"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.06"
  • Cone Backface Backing Diameter 4.13"
  • Cup Frontface Backing Diameter 5.57"
  • Cage Cone Backface Clearance 0.17"
  • Dynamic Radial Load 96700 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 663A
  • Cup Part Number 654DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 655
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 14400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 10100 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 25100 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 14.96 lb

Features

Performance Features of 663A-654DC Bearing

663A-654DC Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 96,700 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design enhances stability and load distribution.
With a standard radial clearance, it provides smooth operation under varying conditions.

663A-654DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, reducing friction and extending service life.

Application

Industrial Uses of 663A-654DC Bearing
The 663A-654DC Bearing is well-suited for heavy machinery, such as construction equipment and industrial gearboxes, where its double-row design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 663A-654DC Bearing is often used in wheel hubs and differential systems, providing reliable performance under varying load conditions. The inch sizing makes it compatible with many North American vehicle models.

For automation systems, 663A-654DC Bearing supports robotic arms and conveyor belts, where its tapered roller design offers smooth motion and long service life. The open seal type allows for easy lubrication and maintenance.

Where Is 663A-654DC Bearing Used?
You’ll find 663A-654DC Bearing in agricultural machinery, particularly in tractors and harvesters, where its robust design withstands heavy loads and rough conditions. The standard radial clearance ensures consistent performance over time.

In material handling equipment, 663A-654DC Bearing is a reliable choice for forklifts and cranes, thanks to its high dynamic radial load capacity. The steel cage adds extra strength, making it ideal for repetitive use.

Built for Heavy-Duty Use: 663A-654DC Bearing
663A-654DC Bearing excels in mining equipment, where its tapered rollers manage extreme loads and vibrations. The chrome steel rollers and rings provide excellent wear resistance, even in abrasive environments.

For railway applications, 663A-654DC Bearing is often used in axle boxes, ensuring smooth and safe operation under high-speed conditions. Its ABEC-1 rating balances precision and cost-effectiveness for these uses.

Automotive vs Aerospace: Applications of 663A-654DC Bearing
In automotive systems, 663A-654DC Bearing is commonly found in heavy-duty trucks, handling both radial and thrust loads in drivetrains. Its inch measurements align with standard automotive components.

For aerospace ground support equipment, 663A-654DC Bearing provides reliable performance in tow tractors and loading systems. The temperature range of -30° to 110°C ensures functionality in various weather conditions.

Q&A

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