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TS (Single Row Tapered Roller Bearings) (Imperial) EE991251-992550

TS (Single Row Tapered Roller Bearings) (Imperial) EE991251-992550

The EE991251-992550 is a single-row tapered roller bearing with a 12.5″ bore and 25.5″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 528,000 lbf radially and 203,000 lbf thrust, making it suitable for heavy-duty applications.

Its pin-type cage design ensures smooth operation, while the open seal allows for easy lubrication. The bearing works in temperatures from -30°C to 110°C, offering reliable performance in various conditions.

This model is interchangeable with Timken bearings, providing a practical replacement option. Ideal for industrial machinery, construction equipment, or any setting requiring robust load-bearing capacity.

Weighing 407.40 lb, it’s built to last and complies with RoHS and REACH standards for safety and environmental considerations.

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Product Parameters

  • Part Number EE991251-992550
  • Brand TFL
  • Interchangeable Timken
  • Size 12.5" x 25.5" x 5.5"
  • Bore Dia 12.5"
  • Bore Dia Tolerance +0.002" to 0
  • Outer Dia 25.5"
  • Outer Dia Tolerance +0.003" to 0
  • Cone Width 4.75"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 3.5"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 5.5"
  • Width Tolerance +0.015" to -0.015"
  • Cone Backface ToClear Radius 0.530"
  • Cup Backface ToClear Radius 0.530"
  • Cone Frontface Backing Diameter 16.14"
  • Cone Backface Backing Diameter 15.51"
  • Cup Frontface Backing Diameter 23.39"
  • Cup Backface Backing Diameter 21.50"
  • Cage Cone Frontface Clearance 0.92"
  • Cage Cone Backface Clearance 1.01"
  • Effective Center Location 2.17"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number EE991251
  • Cup Part Number 992550
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 990000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Pin-Type
  • Dynamic Radial Load 528000 lbf
  • Static Radial Load 790000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 137000 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 203000 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 407.40 lb

Features

How Is EE991251-992550 Bearing Engineered for Reliability?

EE991251-992550 Bearing features chrome steel rings and rollers, providing robust resistance to combined loads.
Its dynamic radial load capacity reaches 528,000 lbf, ensuring dependable performance in heavy-duty applications.
The pin-type cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environmental conditions.

Application

Industrial Uses of EE991251-992550 Bearing
EE991251-992550 Bearing is commonly used in heavy machinery like mining equipment and construction vehicles, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in harsh working conditions.

Where Is EE991251-992550 Bearing Used?
You’ll often find EE991251-992550 Bearing in large industrial gearboxes and power transmission systems. Its pin-type cage design provides stability, making it suitable for high-load applications.

Built for Heavy-Duty Use: EE991251-992550 Bearing
EE991251-992550 Bearing excels in agricultural machinery, such as tractors and harvesters, thanks to its robust design. The standard radial clearance allows for smooth operation even under varying temperatures.

Automotive vs Aerospace: Applications of EE991251-992550 Bearing
In automotive applications, EE991251-992550 Bearing supports axle systems and differentials, while in aerospace, it’s used in landing gear mechanisms. Its inch sizing makes it versatile for different industries.

Key Fields for EE991251-992550 Bearing
EE991251-992550 Bearing is ideal for railway applications, particularly in freight car wheel assemblies. The ABEC-1 rating ensures reliable performance without unnecessary precision costs.

Q&A

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