+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
TS (Single Row Tapered Roller Bearings) (Imperial) 3975-3919RB

TS (Single Row Tapered Roller Bearings) (Imperial) 3975-3919RB

The 3975-3919RB is a single-row tapered roller bearing with a 2″ bore and 4.4375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 31200 lbf radially and 5570 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 industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 3.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 3975-3919RB
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 4.4375" x 1.1875"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.183"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9687"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.68"
  • Cup Frontface Backing Diameter 4.18"
  • Cup Backface Backing Diameter 3.90"
  • Cage Cone Frontface Clearance 0.08"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.18"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3975
  • Cup Part Number 3919RB
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3900
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 31200 lbf
  • Static Radial Load 43000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 8090 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5570 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 3.3 lb

Features

Performance Features of 3975-3919RB Bearing

3975-3919RB Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 31,200 lbf, making it suitable for heavy-duty applications.

The tapered roller design ensures effective load distribution, reducing wear and extending service life.
With a standard radial clearance, it provides reliable operation in various industrial settings.

3975-3919RB Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
Its steel cage maintains roller alignment, contributing to smooth and efficient performance.

The bearing’s ABEC-1 rating guarantees consistent precision for general applications.
Easy to install and maintain, it reduces downtime and operational costs.

Application

Key Fields for 3975-3919RB Bearing
In industrial settings, 3975-3919RB Bearing is commonly used in heavy machinery like gearboxes and conveyor systems, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is 3975-3919RB Bearing Used?
You’ll often find 3975-3919RB Bearing in automotive applications, particularly in wheel hubs and differentials, where its robust design supports high radial and thrust loads. Its inch sizing makes it a fit for many North American vehicle models.

Built for Heavy-Duty Use: 3975-3919RB Bearing
3975-3919RB Bearing excels in construction equipment, such as bulldozers and cranes, thanks to its ability to withstand heavy loads and harsh conditions. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 3975-3919RB Bearing
While 3975-3919RB Bearing is popular in automotive systems like axles, it’s also suitable for aerospace ground support equipment, where reliability under stress is key. The steel cage adds extra strength for these varied uses.

Perfect Fit for Automation: 3975-3919RB Bearing
In automated production lines, 3975-3919RB Bearing ensures smooth operation of robotic arms and assembly systems. Its precise engineering reduces friction, making it ideal for repetitive, high-precision tasks.

Q&A

SEND INQUIRY