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TS (Single Row Tapered Roller Bearings) (Imperial) 93778T-J93129A

TS (Single Row Tapered Roller Bearings) (Imperial) 93778T-J93129A

The 93778T-J93129A is a single-row tapered roller bearing with a 7.9958″ bore and 12.5984″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 164,000 lbf radially and 38,200 lbf thrust, making it robust 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 heavy equipment where combined loads are common.

Weighing 40.40 lb, it’s built to last and complies with RoHS and REACH standards for safe and sustainable use.

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Product Parameters

  • Part Number 93778T-J93129A
  • Brand TFL
  • Interchangeable Timken
  • Size 7.9958" x 12.5984" x 2.5"
  • Bore Dia 7.9958"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 12.5984"
  • Outer Dia Tolerance +0.002" to 0
  • Cone Width 2.5"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.8125"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.5"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.170"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 9.61"
  • Cone Backface Backing Diameter 8.78"
  • Cup Frontface Backing Diameter 11.75"
  • Cup Backface Backing Diameter 11.30"
  • Cage Cone Frontface Clearance 0.21"
  • Cage Cone Backface Clearance 0.32"
  • Effective Center Location 0.31"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 93778T
  • Cup Part Number J93129A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 93000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 164000 lbf
  • Static Radial Load 290000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 42600 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 38200 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 40.40 lb

Features

Performance Features of 93778T-J93129A Bearing

93778T-J93129A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 164,000 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

How Is 93778T-J93129A Bearing Engineered for Reliability?

93778T-J93129A Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides durability, while the standard radial clearance allows for smooth operation.
Its dynamic thrust rating of 38,200 lbf ensures consistent performance under demanding conditions.
The bearing requires lubrication, ensuring long-term reliability and reduced wear.

Designed for Durability: 93778T-J93129A Bearing

93778T-J93129A Bearing’s chrome steel rollers and rings enhance its resistance to wear and fatigue.
With a static radial load capacity of 290,000 lbf, it handles heavy loads with ease.
The steel cage maintains roller alignment, contributing to efficient and quiet operation.
Its ABEC-1 rating ensures precision, making it a dependable choice for various applications.

Application

Industrial Uses of 93778T-J93129A Bearing
This bearing is commonly used in heavy machinery like mining equipment and construction vehicles, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

Where Is 93778T-J93129A Bearing Used?
You’ll often find this bearing in large industrial gearboxes and agricultural machinery, thanks to its high dynamic radial load capacity. Its standard radial clearance makes it versatile for various applications.

Built for Heavy-Duty Use: 93778T-J93129A Bearing
Ideal for applications like railway axles and truck wheel hubs, this bearing’s steel cage and chrome steel rollers provide reliable performance. The inch sizing ensures compatibility with many North American machinery standards.

Automotive vs Aerospace: Applications of 93778T-J93129A Bearing
In automotive systems, this bearing supports heavy axles and drivetrain components, while in aerospace, it’s used in landing gear assemblies. Its ABEC-1 rating balances precision and cost-effectiveness.

Practical Applications of 93778T-J93129A Bearing
For wind turbines and large pumps, this bearing’s high static radial load capacity ensures long service life. The open design allows for easy lubrication, which is essential in high-load environments.

Q&A

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