55187-55433D TDO (Two-Row Double-Outer Race) (Imperial)

55187-55433D TDO (Two-Row Double-Outer Race) (Imperial)

The 55187-55433D is a two-row tapered roller bearing with a 1.875″ bore and 4.33″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 49400 lbf and is designed for smooth operation in demanding conditions.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing works well in temperatures ranging from -30°C to 110°C.

This model is part of the 55000 series, offering reliable performance for heavy-duty applications. Ideal for use in industrial machinery or automotive systems where combined loads are common.

Weighing 5.92 lb, it’s a robust choice for high-load scenarios. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 55187-55433D
  • Brand TFL
  • Size 1.875" x 4.33" x 1.0594"
  • Bore Dia 1.875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.33"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.6876"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.0594"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.4999"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.02"
  • Cone Backface Backing Diameter 2.72"
  • Cup Frontface Backing Diameter 4.15"
  • Cage Cone Backface Clearance 0.16"
  • Dynamic Radial Load 49400 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 55187
  • Cup Part Number 55433D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 55000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 7350 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 11100 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 12800 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 5.92 lb

Features

How Does 55187-55433D Bearing Handle Combined Loads?

55187-55433D Bearing features a double-row tapered roller design, ideal for managing both radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 49,400 lbf.

The steel cage maintains roller alignment, reducing friction and extending operational life.
With a standard radial clearance, it offers reliable performance in various industrial applications.

55187-55433D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring smooth and consistent performance.

The bearing’s precise tolerances and robust materials make it suitable for heavy-duty use.
Its ABEC-1 rating ensures adequate precision for most industrial requirements.

Application

Industrial Uses of 55187-55433D Bearing
The 55187-55433D Bearing is a solid choice for heavy machinery, especially in construction equipment where combined loads are common. Its double-row design handles radial and thrust forces efficiently, making it reliable for long-term use.

What Makes 55187-55433D Bearing a Preferred Choice?
In automotive applications like truck wheel hubs, 55187-55433D Bearing stands out for its durability and precise inch measurements. The chrome steel construction ensures it can withstand high loads without compromising performance.

Built for Heavy-Duty Use: 55187-55433D Bearing
This bearing excels in industrial fans and gearboxes, where its open design allows for easy lubrication. The tapered roller design ensures smooth operation even under demanding conditions.

Automotive vs Aerospace: Applications of 55187-55433D Bearing
While 55187-55433D Bearing is popular in heavy vehicles, its precision also suits aerospace components requiring combined load handling. The steel cage adds extra stability for high-speed rotations.

Where Is 55187-55433D Bearing Used?
You’ll often find 55187-55433D Bearing in agricultural machinery, where its robust build handles dirt and debris well. The standard radial clearance makes it adaptable to various operating conditions.

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