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

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

The 74550A-74850W is a single-row tapered roller bearing with a 5.5″ bore and 8.5″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 85900 lbf radial and 18600 lbf thrust, suitable for heavy-duty applications.

Its open design allows straightforward lubrication, while the steel cage ensures durability under stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for use in industrial machinery or automotive systems where combined loads are common.

Weighing 13.1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 74550A-74850W
  • Brand TFL
  • Interchangeable Timken
  • Size 5.5" x 8.5" x 1.8751"
  • 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 1.8751"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.25"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 6.97"
  • Cone Backface Backing Diameter 6.54"
  • 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 74550A
  • Cup Part Number 74850W
  • 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 13.1 lb

Features

Performance Features of 74550A-74850W Bearing

74550A-74850W Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 85,900 lbf, making it suitable for heavy-duty applications.

The steel cage maintains roller alignment, ensuring smooth operation and reduced wear.
With a static radial load of 138,000 lbf, it provides reliable performance under extreme conditions.

74550A-74850W Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options allow for flexibility in various industrial applications.

The tapered roller design ensures effective load distribution, enhancing longevity.
Lubrication is required to maintain optimal performance and reduce friction.

The bearing’s ABEC-1 rating balances precision and durability for general industrial use.
Its interchangeable design with Timken bearings offers convenience for replacements.

Application

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

Where Is 74550A-74850W Bearing Used?
You’ll often find 74550A-74850W Bearing in agricultural machinery, such as tractors and harvesters, where its robust design supports high radial and thrust loads. The inch sizing makes it a fit for older equipment still in use.

Built for Heavy-Duty Use: 74550A-74850W Bearing
In industrial gearboxes, 74550A-74850W Bearing provides reliable performance under constant stress. The steel cage and chrome steel rollers contribute to its long service life.

Automotive vs Aerospace: Applications of 74550A-74850W Bearing
While 74550A-74850W Bearing is popular in truck wheel hubs, its precision also suits aerospace landing gear components. The ABEC-1 rating balances cost and performance for these demanding uses.

Perfect Fit for Automation: 74550A-74850W Bearing
In automated production lines, 74550A-74850W Bearing ensures smooth operation of conveyor systems. Its standard radial clearance allows for easy integration into existing setups.

Q&A

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