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639-632D TDO (Two-Row Double-Outer Race) (Imperial)

639-632D TDO (Two-Row Double-Outer Race) (Imperial)

The 639-632D is a double-row tapered roller bearing with a 2.5″ bore and 5.375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 108,000 lbf and is designed for long-lasting performance.

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

This model is part of the 635 series, with standard radial clearance and ABEC-1 precision. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 13.5 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 639-632D
  • Brand TFL
  • Size 2.5" x 5.375" x 1.625"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.375"
  • 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 3.75"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.06"
  • Cone Backface Backing Diameter 3.19"
  • Cup Frontface Backing Diameter 4.96"
  • Cage Cone Backface Clearance 0.15"
  • Dynamic Radial Load 108000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 639
  • Cup Part Number 632D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 635
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 16100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 9980 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 28000 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 13.5 lb

Features

Performance Features of 639-632D Bearing

639-632D Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 108,000 lbf, making it suitable for heavy-duty applications.
The double-row tapered roller design ensures stability and efficient load distribution.
With a standard radial clearance, it provides reliable operation in various conditions.

How Is 639-632D Bearing Engineered for Reliability?

639-632D Bearing features a steel cage that maintains roller alignment, reducing wear and extending service life.
The chrome steel construction resists wear, ensuring durability even in demanding environments.
Its double-row design enhances load-bearing capacity, making it ideal for industrial use.
The bearing operates efficiently within a temperature range of -30° to 110°C.

Built for Durability: 639-632D Bearing

639-632D Bearing’s tapered roller design handles both radial and thrust loads with ease.
The chrome steel materials provide excellent resistance to wear and corrosion.
Its standard radial clearance allows for smooth operation in various applications.
With a dynamic radial rating of 28,000 lbf for two rows, it ensures long-lasting performance.

Steel vs Ceramic Bearings: Strengths of 639-632D Bearing

639-632D Bearing uses chrome steel for both rings and rollers, offering high strength and durability.
The steel cage ensures proper roller alignment, minimising friction and wear.
Its double-row design provides superior load distribution compared to single-row bearings.
The bearing is suitable for applications requiring reliable performance under combined loads.

Application

Industrial Uses of 639-632D Bearing
The 639-632D 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 in tough working conditions.

Where Is 639-632D Bearing Used?
You’ll often find the 639-632D Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides reliable performance. The open seal type allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 639-632D Bearing
The 639-632D Bearing excels in industrial gearboxes, supporting high loads with its robust double-row configuration. Its standard radial clearance makes it versatile for various applications, from conveyor systems to presses.

Automotive vs Aerospace: Applications of 639-632D Bearing
In automotive applications, the 639-632D Bearing is ideal for wheel hubs and differentials, offering stability under heavy loads. For aerospace, its precision and reliability make it suitable for landing gear components.

Perfect Fit for Automation: 639-632D Bearing
The 639-632D Bearing works well in automated production lines, where its consistent performance reduces downtime. Its steel cage ensures smooth operation even in high-speed scenarios.

Q&A

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