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TS (Single Row Tapered Roller Bearings) (Imperial) 9178-9121

TS (Single Row Tapered Roller Bearings) (Imperial) 9178-9121

The 9178-9121 is a single-row tapered roller bearing with a 2.4375″ bore and 6″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 64200 lbf radially and 18700 lbf thrust, making it versatile for heavy-duty use.

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 applications where combined loads are common.

Weighing 9.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s safe for various industrial uses.

The standard radial clearance ensures consistent performance, with options for C3, C4, or C5 clearances if needed. Its ABEC-1 rating balances precision and cost-effectiveness for general applications.

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Product Parameters

  • Part Number 9178-9121
  • Brand TFL
  • Interchangeable Timken
  • Size 2.4375" x 6" x 2.0624"
  • Bore Dia 2.4375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 6"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 2.0625"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.25"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.0624"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 3.2"
  • Cone Backface Backing Diameter 3.54"
  • Cup Frontface Backing Diameter 5.75"
  • Cup Backface Backing Diameter 5.12"
  • Cage Cone Frontface Clearance 0.14"
  • Cage Cone Backface Clearance 0.47"
  • Effective Center Location -0.33"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 9178
  • Cup Part Number 9121
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 9100
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 64200 lbf
  • Static Radial Load 68700 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 16600 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 18700 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 9.3 lb

Features

Performance Features of 9178-9121 Bearing

9178-9121 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 64,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 9178-9121 Bearing Engineered for Reliability?

9178-9121 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides excellent wear resistance, extending its service life.
Its dynamic thrust rating of 18,700 lbf ensures consistent performance under pressure.
The standard radial clearance options allow for flexibility in different applications.

Built for Durability: 9178-9121 Bearing

9178-9121 Bearing’s robust design includes precise cone and cup width tolerances for smooth operation.
The steel cage maintains roller spacing, preventing misalignment and reducing wear.
With a static radial load capacity of 68,700 lbf, it handles demanding industrial tasks.
Its ABEC-1 rating ensures reliable performance in various machinery applications.

Application

Industrial Uses of 9178-9121 Bearing
The 9178-9121 Bearing is widely used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability even in demanding environments.

Where Is 9178-9121 Bearing Used?
You’ll often find 9178-9121 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its robust design and inch sizing make it a reliable choice for older or custom vehicle models.

Built for Heavy-Duty Use: 9178-9121 Bearing
This bearing excels in industrial gearboxes and conveyor systems, thanks to its high dynamic load capacity. The open seal design allows for easy lubrication, extending its service life in continuous operations.

Automotive vs Aerospace: Applications of 9178-9121 Bearing
In automotive settings, 9178-9121 Bearing supports heavy loads in truck axles and transmissions. While not typically used in aerospace, its precision makes it suitable for ground support equipment.

Perfect Fit for Automation: 9178-9121 Bearing
The 9178-9121 Bearing is a solid choice for automated production lines, where its tapered rollers provide smooth motion under varying loads. Its steel cage adds stability for long-term use.

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