+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
TS (Single Row Tapered Roller Bearings) (Imperial) 3955-3919RB

TS (Single Row Tapered Roller Bearings) (Imperial) 3955-3919RB

The 3955-3919RB is a single-row tapered roller bearing with a 2.5″ bore and 4.4375″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 31200 lbf radially and 5570 lbf thrust, suitable for demanding applications.

Its open design allows straightforward lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

Interchangeable with Timken models, it’s a practical choice for replacements. Ideal for heavy machinery or automotive uses where combined loads are common.

Weighing 3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable performance.

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

Product Parameters

  • Part Number 3955-3919RB
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 4.4375" x 1.4375"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.433"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9687"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.4375"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.8"
  • Cone Backface Backing Diameter 3.03"
  • Cup Frontface Backing Diameter 4.18"
  • Cup Backface Backing Diameter 3.90"
  • Cage Cone Frontface Clearance 0.08"
  • Cage Cone Backface Clearance 0.31"
  • Effective Center Location -0.43"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3955
  • 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 lb

Features

How Is 3955-3919RB Bearing Engineered for Reliability?

3955-3919RB Bearing features chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its dynamic radial load capacity reaches 31,200 lbf, making it suitable for heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in varied environments.

What Makes 3955-3919RB Bearing Suitable for High-Temperature Applications?

3955-3919RB Bearing is built with chrome steel components, which resist heat and maintain performance up to 110°C.
The open design allows for effective lubrication, preventing overheating during prolonged use.
Its standard radial clearance options (C3/C4/C5) accommodate thermal expansion.
This ensures consistent operation even in demanding industrial settings.

Built for Durability: 3955-3919RB Bearing

3955-3919RB Bearing’s tapered roller design distributes loads evenly, reducing stress on individual components.
The chrome steel construction resists wear, ensuring a long service life under heavy radial and thrust loads.
Its ABEC-1 rating guarantees precision, while the steel cage enhances stability.
This makes it a dependable choice for machinery requiring robust performance.

Steel vs Ceramic Bearings: Strengths of 3955-3919RB Bearing

3955-3919RB Bearing uses chrome steel for both rollers and rings, offering excellent load-bearing capacity.
Unlike ceramic options, it provides superior impact resistance and cost-effectiveness for industrial use.
The steel cage ensures smooth roller movement, minimising friction and noise.
With a static radial load of 43,000 lbf, it handles extreme conditions without compromising reliability.

Why Choose 3955-3919RB Bearing for Precision Tasks?

3955-3919RB Bearing’s tapered rollers and precise cone-cup alignment ensure accurate load distribution.
Its ABEC-1 rating reflects tight tolerances, making it ideal for applications requiring consistent performance.
The chrome steel materials resist deformation under stress, maintaining precision over time.
Easy to lubricate and maintain, it reduces downtime in critical operations.

Application

Industrial Uses of 3955-3919RB Bearing
The 3955-3919RB Bearing is a solid choice for heavy machinery, especially in construction equipment where combined loads are common. Its tapered roller design handles both radial and thrust forces smoothly.

In automotive applications, 3955-3919RB Bearing works well in wheel hubs and differential systems, thanks to its durable chrome steel construction. The imperial sizing makes it a straightforward fit for many North American vehicles.

For industrial conveyor systems, 3955-3919RB Bearing’s open design simplifies lubrication and maintenance. The steel cage ensures long-term reliability even in dusty or high-load environments.

Where Is 3955-3919RB Bearing Used?
You’ll often find 3955-3919RB Bearing in agricultural machinery, where its ability to handle combined loads shines. It’s particularly useful in tractor gearboxes and harvesting equipment.

The bearing also fits well in mining equipment, where its robust design withstands harsh conditions. Its ABEC-1 rating ensures consistent performance without overcomplicating the setup.

Built for Heavy-Duty Use: 3955-3919RB Bearing
3955-3919RB Bearing is a go-to for forestry equipment like log splitters and sawmills. Its tapered rollers distribute loads evenly, reducing wear over time.

In material handling systems, this bearing’s standard radial clearance offers flexibility for various operational needs. The chrome steel rollers add an extra layer of durability.

Automotive vs Aerospace: Applications of 3955-3919RB Bearing
In automotive settings, 3955-3919RB Bearing excels in truck axles and drivetrains, balancing strength and precision. Its imperial measurements align with many US-made components.

While not typically used in aerospace, this bearing finds a niche in ground support equipment. Its temperature range suits most outdoor operational conditions.

Practical Applications of 3955-3919RB Bearing
3955-3919RB Bearing is handy in pump systems, where its combined load capacity keeps things running smoothly. The steel cage resists corrosion in wet environments.

For industrial fans, this bearing’s tapered design minimizes friction at high speeds. Its straightforward lubrication needs make maintenance a breeze.

Q&A

SEND INQUIRY