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

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

The 74550A-74856 is a single-row tapered roller bearing with a 5.5″ bore and 8.5625″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 85900 lbf radially and 18600 lbf in thrust, suitable for heavy-duty applications.

Its open design allows for straightforward lubrication, while the steel cage ensures durability. 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 13.4 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-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 0.25"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 6.97"
  • Cone Backface Backing Diameter 6.54"
  • 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 74550A
  • 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 74550A-74856 Bearing

74550A-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, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 74550A-74856 Bearing Engineered for Reliability?

74550A-74856 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides excellent strength and resistance to wear.
Its dynamic thrust rating of 18,600 lbf ensures consistent performance under pressure.
The standard radial clearance option allows for flexibility in different applications.

Built for Durability: 74550A-74856 Bearing

74550A-74856 Bearing’s robust design includes precise cone and cup width tolerances for reliable fit.
The chrome steel rollers and cage work together to minimise friction and extend service life.
With a static radial load capacity of 138,000 lbf, it handles demanding conditions with ease.
The open seal type simplifies maintenance while ensuring proper lubrication.

Application

Industrial Uses of 74550A-74856 Bearing
74550A-74856 Bearing is commonly used in heavy machinery, such as construction equipment and mining gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 74550A-74856 Bearing Used?
In automotive applications, 74550A-74856 Bearing supports wheel hubs and drivetrains, providing reliable performance under both radial and thrust loads. Its inch sizing makes it a fit for many North American vehicle models.

Built for Heavy-Duty Use: 74550A-74856 Bearing
This bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 74550A-74856 Bearing
While 74550A-74856 Bearing is popular in trucks and tractors, it also finds use in aerospace ground support equipment. Its ABEC-1 rating ensures consistent performance across different industries.

Key Fields for 74550A-74856 Bearing
In agricultural machinery, 74550A-74856 Bearing handles the rough conditions of harvesters and tillers. The standard radial clearance offers flexibility for various operational needs.

Q&A

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