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TS (Single Row Tapered Roller Bearings) (Imperial) 74550-74856

TS (Single Row Tapered Roller Bearings) (Imperial) 74550-74856

The 74550-74856 is a single-row tapered roller bearing with a 5.5″ bore and 8.5625″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 85900 lbf radial and 18600 lbf thrust, making it a robust choice 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 industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 13.4 lb, it’s built for strength and longevity. Compliant with RoHS and REACH standards for safe and sustainable use.

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Product Parameters

  • Part Number 74550-74856
  • Brand TFL
  • Interchangeable Timken
  • Size 5.5" x 8.5625" x 1.8751"
  • Bore Dia 5.5"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 8.5625"
  • 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 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 6.85"
  • Cone Backface Backing Diameter 6.22"
  • Cup Frontface Backing Diameter 8.30"
  • Cup Backface Backing Diameter 7.76"
  • 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 74856
  • 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 13.400 lb

Features

Performance Features of 74550-74856 Bearing

74550-74856 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 85,900 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 environments.

How Does 74550-74856 Bearing Resist Wear?

74550-74856 Bearing’s tapered roller design distributes loads evenly, minimising wear over time.
The chrome steel construction enhances durability, even under high radial and thrust loads.
Its standard radial clearance allows for smooth operation, reducing maintenance needs.
The bearing’s effective centre location ensures stability during use.

Engineered for Precision: 74550-74856 Bearing

74550-74856 Bearing features precise tolerances, with bore and outer diameter tolerances of +0.001″ to 0.
Its single-row construction provides accurate load handling, ideal for combined load applications.
The bearing’s ABEC-1 rating ensures consistent performance in various industrial settings.
With a dynamic thrust rating of 18,600 lbf, it balances precision and strength.

Application

Industrial Uses of 74550-74856 Bearing
The 74550-74856 Bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its tapered roller design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 74550-74856 Bearing supports axle systems and wheel hubs, providing reliable performance under high stress. The imperial sizing makes it a straightforward replacement for Timken bearings in older vehicles.

For industrial fans and blowers, 74550-74856 Bearing’s open design allows for easy lubrication, extending service life. Its standard radial clearance also accommodates thermal expansion during continuous operation.

Where Is 74550-74856 Bearing Used?
You’ll often find 74550-74856 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design withstands uneven loads. The steel cage adds extra resilience against shock and vibration.

In conveyor systems, 74550-74856 Bearing ensures smooth material handling, thanks to its tapered rollers distributing loads evenly. The ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

Built for Heavy-Duty Use: 74550-74856 Bearing
74550-74856 Bearing excels in paper mill equipment, where its high static radial load capacity supports heavy rollers. The chrome steel rollers resist wear, even in dusty or humid conditions.

For railway applications, 74550-74856 Bearing’s tapered design manages both radial and axial forces in bogies. Its temperature range (-30° to 110°C) ensures reliability in varying climates.

Automotive vs Aerospace: Applications of 74550-74856 Bearing
In automotive drivetrains, 74550-74856 Bearing handles torque and axial loads, while its aerospace use is limited due to weight. The inch sizing simplifies maintenance for North American fleets.

For industrial pumps, 74550-74856 Bearing’s dynamic thrust rating ensures longevity in high-speed rotation. Its steel cage prevents roller skewing, maintaining alignment under pressure.

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