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TS (Single Row Tapered Roller Bearings) (Imperial) 74550-74850

TS (Single Row Tapered Roller Bearings) (Imperial) 74550-74850

The 74550-74850 is a single-row tapered roller bearing with a 5.5″ bore and 8.5″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 85900 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing is interchangeable with Timken models, making it a practical choice for replacements.

This bearing is ideal for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common. It comes with standard radial clearance but is also available in C3, C4, or C5 options.

Weighing 13.2 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets essential safety and environmental requirements.

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Product Parameters

  • Part Number 74550-74850
  • Brand TFL
  • Interchangeable Timken
  • Size 5.5" x 8.5" x 1.875"
  • Bore Dia 5.5"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 8.5"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.875"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 6.85"
  • Cone Backface Backing Diameter 6.22"
  • Cup Frontface Backing Diameter 8.23"
  • Cup Backface Backing Diameter 7.72"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.17"
  • Effective Center Location 0.09"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 74550
  • Cup Part Number 74850
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 74000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 85900 lbf
  • Static Radial Load 138000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 22300 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 18600 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 13.2 lb

Features

How Is 74550-74850 Bearing Engineered for Reliability?

74550-74850 Bearing features chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its dynamic radial load capacity reaches 85,900 lbf, making it suitable for 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 reliably in various environments.

Designed for easy lubrication, 74550-74850 Bearing simplifies maintenance while enhancing performance.
Its standard radial clearance options provide flexibility for different operational needs.

Application

Industrial Uses of 74550-74850 Bearing
74550-74850 Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

In automotive applications, 74550-74850 Bearing fits well in truck wheel hubs and axles, providing reliable performance under high radial and thrust loads. Its imperial sizing makes it a straightforward replacement for Timken bearings in many vehicles.

For industrial conveyor systems, 74550-74850 Bearing’s open design allows easy lubrication, extending service life in continuous operation. The steel cage adds stability, making it suitable for high-vibration environments.

Where Is 74550-74850 Bearing Used?
74550-74850 Bearing is often found in agricultural machinery, such as tractors and harvesters, where its robust design withstands dirt and moisture. The standard radial clearance ensures smooth rotation even under uneven loads.

In railway applications, 74550-74850 Bearing supports freight car axles, offering reliable performance over long distances. Its ABEC-1 rating provides sufficient precision for most rail transport needs.

Built for Heavy-Duty Use: 74550-74850 Bearing
74550-74850 Bearing excels in forestry equipment like log skidders, where its tapered rollers manage heavy loads and shocks. The chrome steel rollers resist wear, reducing maintenance frequency.

For power transmission systems, 74550-74850 Bearing’s effective center location ensures proper alignment in gearboxes and driveshafts. Its dynamic radial load capacity makes it a dependable choice for high-torque applications.

Automotive vs Aerospace: Applications of 74550-74850 Bearing
In automotive settings, 74550-74850 Bearing is ideal for heavy-duty trucks and buses, handling both radial and thrust loads efficiently. The inch measurements simplify integration into North American vehicle designs.

For aerospace ground support equipment, 74550-74850 Bearing’s temperature range suits outdoor use in varying climates. While not for flight systems, it reliably serves in cargo loaders and maintenance tools.

Q&A

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