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TS (Single Row Tapered Roller Bearings) (Imperial) 3191-3129

TS (Single Row Tapered Roller Bearings) (Imperial) 3191-3129

The 3191-3129 is a single-row tapered roller bearing with a 1.1875″ bore and 3″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 21300 lbf radially and 3140 lbf thrust, making it versatile for various applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. 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 use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing 1.5 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments.

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Product Parameters

  • Part Number 3191-3129
  • Brand TFL
  • Interchangeable Timken
  • Size 1.1875" x 3" x 1.1876"
  • Bore Dia 1.1875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.181"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1876"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 1.52"
  • Cone Backface Backing Diameter 1.75"
  • Cup Frontface Backing Diameter 2.74"
  • Cup Backface Backing Diameter 2.56"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.03"
  • Effective Center Location -0.4"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3191
  • Cup Part Number 3129
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3100
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 21300 lbf
  • Static Radial Load 22800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5520 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3140 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 1.500 lb

Features

Performance Features of 3191-3129 Bearing

3191-3129 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 21,300 lbf, making it suitable for demanding industrial applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a standard radial clearance, it provides reliable performance in various operating conditions.

How Is 3191-3129 Bearing Engineered for Reliability?

3191-3129 Bearing features a tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction ensures long-lasting performance even under heavy stress.
Its effective centre location of -0.4″ contributes to stable operation in complex assemblies.
The bearing operates within a temperature range of -30° to 110°C, suitable for diverse environments.

Designed for Durability: 3191-3129 Bearing

3191-3129 Bearing’s single row construction provides a compact solution without compromising strength.
The open seal type allows for easy lubrication, maintaining smooth operation over time.
With a static radial load capacity of 22,800 lbf, it delivers consistent performance in tough conditions.
Its ABEC-1 rating ensures dependable precision for various industrial applications.

Application

Industrial Uses of 3191-3129 Bearing
3191-3129 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 3191-3129 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a straightforward replacement for Timken equivalents in many vehicles.

For industrial conveyor systems, 3191-3129 Bearing’s open design simplifies lubrication and maintenance, keeping operations smooth. The steel cage adds extra resilience, making it suitable for high-load scenarios.

Where Is 3191-3129 Bearing Used?
You’ll often find 3191-3129 Bearing in mining equipment, where its robust design copes with harsh conditions. The tapered rollers distribute loads evenly, reducing wear over time.

In manufacturing plants, 3191-3129 Bearing supports machinery like presses and gearboxes, ensuring consistent performance. Its ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

Built for Heavy-Duty Use: 3191-3129 Bearing
3191-3129 Bearing excels in applications like forklifts and cranes, where strength and reliability are key. The standard radial clearance offers flexibility for various load conditions.

For forestry machinery, 3191-3129 Bearing’s temperature range (-30° to 110°C) ensures stable operation in extreme climates. The steel cage and chrome steel rollers enhance its longevity.

Automotive vs Aerospace: Applications of 3191-3129 Bearing
In automotive settings, 3191-3129 Bearing handles wheel and drivetrain loads with ease. Its compatibility with Timken models simplifies sourcing for repairs.

While not typically used in aerospace, 3191-3129 Bearing’s precision makes it suitable for ground support equipment. The inch measurements align with many industrial standards.

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