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48385-48320DC TDO (Two-Row Double-Outer Race) (Imperial)

48385-48320DC TDO (Two-Row Double-Outer Race) (Imperial)

The 48385-48320DC is a double-row tapered roller bearing with a 5.25″ bore and 7.5″ outer diameter, built from sturdy chrome steel for heavy-duty use. It handles combined loads up to 111,000 lbf and suits applications requiring robust radial and thrust support.

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

This model features standard radial clearance and is ABEC-1 rated for reliable performance. Ideal for industrial machinery, gearboxes, or heavy equipment where combined loads are common.

Weighing 16.15 lb, it’s built to last while complying with RoHS and REACH standards for safety and environmental care.

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Product Parameters

  • Part Number 48385-48320DC
  • Brand TFL
  • Size 5.25" x 7.5" x 1.5625"
  • Bore Dia 5.25"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 7.5"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.875"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.5625"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.3749"
  • Bearing Width Across Cups Tolerance +0.014" to -0.01"
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 5.83"
  • Cup Frontface Backing Diameter 7.28"
  • Cage Cone Backface Clearance 0.09"
  • Dynamic Radial Load 111000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 48385
  • Cup Part Number 48320DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 48300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 16500 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 9060 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 28700 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 16.15 lb

Features

How Is 48385-48320DC Bearing Engineered for Reliability?

48385-48320DC Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 111,000 lbf.

The precision tolerances, such as bore and outer diameter within +0.001″, enhance performance in demanding applications.
With a standard radial clearance and ABEC-1 rating, it balances precision and reliability.

48385-48320DC Bearing operates efficiently in temperatures from -30° to 110°C, suitable for varied environments.
The steel cage maintains roller alignment, reducing wear and extending service life.

Designed for easy lubrication, 48385-48320DC Bearing simplifies maintenance while ensuring smooth operation.
Its open seal type allows for straightforward inspection and servicing when needed.

Application

Industrial Uses of 48385-48320DC Bearing
The 48385-48320DC 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 efficiently.
Its chrome steel construction ensures durability in harsh environments, making it a reliable choice for long-term use.

What Makes 48385-48320DC Bearing a Preferred Choice?
In automotive applications, 48385-48320DC Bearing supports heavy-duty axles and wheel hubs, providing stability under high loads.
The inch sizing makes it compatible with many North American vehicles, simplifying maintenance and replacements.

Built for Heavy-Duty Use: 48385-48320DC Bearing
For industrial automation, 48385-48320DC Bearing is ideal for conveyor systems and robotic arms, where precision and strength are key.
The open seal design allows for easy lubrication, ensuring smooth operation in continuous-use scenarios.

Automotive vs Aerospace: Applications of 48385-48320DC Bearing
In automotive settings, 48385-48320DC Bearing excels in truck transmissions and differentials, handling high torque demands.
While in aerospace, its robust design suits ground support equipment, though it’s less common in flight-critical systems due to weight considerations.

Essential Roles of 48385-48320DC Bearing
For agricultural machinery, 48385-48320DC Bearing provides reliable performance in tractors and harvesters, enduring dusty and high-load conditions.
The standard radial clearance options offer flexibility for different operational needs.

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