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TS (Single Row Tapered Roller Bearings) (Imperial) EE450551-451212

TS (Single Row Tapered Roller Bearings) (Imperial) EE450551-451212

The EE450551-451212 is a single-row tapered roller bearing with a 5.5″ bore and 12.125″ outer diameter, built from robust chrome steel. It handles combined loads up to 237,000 lbf radially and 34,300 lbf thrust, making it suitable for heavy-duty applications.

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.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for use in industrial machinery, construction equipment, or automotive systems where high load capacity is needed.

Weighing 67.10 lb, it’s a sturdy choice for demanding environments. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number EE450551-451212
  • Brand TFL
  • Interchangeable Timken
  • Size 5.5" x 12.125" x 3.5"
  • Bore Dia 5.5"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 12.125"
  • Outer Dia Tolerance +0.002" to 0
  • Cone Width 3.6875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 2.4375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 3.5"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.380"
  • Cup Backface ToClear Radius 0.270"
  • Cone Frontface Backing Diameter 7.44"
  • Cone Backface Backing Diameter 7.09"
  • Cup Frontface Backing Diameter 10.83"
  • Cup Backface Backing Diameter 10.59"
  • Cage Cone Frontface Clearance -0.06"
  • Cage Cone Backface Clearance 0.68"
  • Effective Center Location -1.11"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number EE450551
  • Cup Part Number 451212
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 450000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 237000 lbf
  • Static Radial Load 333000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 61400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 34300 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 67.10 lb

Features

Performance Features of EE450551-451212 Bearing

EE450551-451212 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 237,000 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

How Is EE450551-451212 Bearing Engineered for Reliability?

EE450551-451212 Bearing features a single-row tapered roller design, ideal for handling both radial and thrust loads.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 34,300 lbf makes it suitable for demanding industrial uses.
The bearing requires lubrication, ensuring consistent performance over time.

Built for Durability: EE450551-451212 Bearing

EE450551-451212 Bearing’s robust chrome steel components withstand high static radial loads up to 333,000 lbf.
The tapered roller design distributes loads evenly, reducing stress on individual components.
It operates efficiently within a wide temperature range, making it versatile for different applications.
The open seal type allows for easy maintenance and lubrication.

Steel vs Ceramic Bearings: Strengths of EE450551-451212 Bearing

EE450551-451212 Bearing uses chrome steel for both rings and rollers, ensuring high strength and wear resistance.
Its dynamic radial rating of 61,400 lbf at 90 million revolutions highlights its long-term reliability.
The steel cage provides stability, keeping rollers aligned under heavy loads.
This bearing is a cost-effective choice for applications requiring durability and performance.

Application

Industrial Uses of EE450551-451212 Bearing
EE450551-451212 Bearing is commonly used in heavy machinery like construction equipment and mining gear, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in tough working conditions.

Where Is EE450551-451212 Bearing Used?
You’ll often find EE450551-451212 Bearing in large industrial gearboxes and power transmission systems. Its inch sizing makes it a good fit for North American machinery, and the open design allows for easy lubrication.

Built for Heavy-Duty Use: EE450551-451212 Bearing
EE450551-451212 Bearing excels in applications like agricultural machinery and railroad axles, where high radial and thrust loads are common. The steel cage adds extra strength, making it reliable for long-term use.

Automotive vs Aerospace: Applications of EE450551-451212 Bearing
In automotive settings, EE450551-451212 Bearing supports heavy axles and drivetrains, while in aerospace, it’s used in landing gear systems. The ABEC-1 rating ensures consistent performance across different industries.

Essential Roles of EE450551-451212 Bearing
EE450551-451212 Bearing is a go-to choice for wind turbine yaw systems, thanks to its ability to handle varying loads. The standard radial clearance option also makes it versatile for different installation needs.

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