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661-654D TDO (Two-Row Double-Outer Race) (Imperial)

661-654D TDO (Two-Row Double-Outer Race) (Imperial)

The 661-654D is a two-row tapered roller bearing with a 3.125″ bore and 6″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 96,700 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 655 series, featuring standard cups and a steel cage for durability. Ideal for heavy-duty applications like industrial gearboxes or large machinery where high radial and thrust loads are common.

Weighing 15.6 lb, it’s a robust choice for imperial-sized systems. Compliant with RoHS and REACH standards, ensuring safe and reliable use.

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Product Parameters

  • Part Number 661-654D
  • Brand TFL
  • Size 3.125" x 6" x 1.625"
  • Bore Dia 3.125"
  • 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 3.78"
  • 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 661
  • Cup Part Number 654D
  • 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 15.6 lb

Features

Performance Features of 661-654D Bearing

661-654D 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 load distribution, reducing wear and extending service life.
With a temperature range of -30° to 110°C, it performs well in various operating conditions.

661-654D Bearing’s standard radial clearance allows for smooth operation and easy installation.
The steel cage maintains roller alignment, contributing to consistent performance over time.

Application

Industrial Uses of 661-654D Bearing
The 661-654D Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability even in demanding environments.

Where Is 661-654D Bearing Used?
You’ll often find the 661-654D Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides reliable performance under varying loads. The inch sizing makes it a practical choice for North American equipment.

Built for Heavy-Duty Use: 661-654D Bearing
In industrial gearboxes, the 661-654D Bearing supports high-load applications, thanks to its robust chrome steel rollers and steel cage. Its open design allows for easy lubrication, extending service life in continuous operation.

Automotive vs Aerospace: Applications of 661-654D Bearing
The 661-654D Bearing is versatile enough for automotive axles and aircraft landing gear, where its combined load capacity is essential. Its temperature range also makes it suitable for both ground and high-altitude conditions.

Perfect Fit for Automation: 661-654D Bearing
For automated conveyor systems, the 661-654D Bearing offers smooth operation and low maintenance, ideal for high-throughput production lines. Its standard radial clearance ensures consistent performance over time.

Q&A

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