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TS (Single Row Tapered Roller Bearings) (Imperial) 3994-3925

TS (Single Row Tapered Roller Bearings) (Imperial) 3994-3925

The 3994-3925 is a single-row tapered roller bearing with a 2.625″ 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 or automotive systems where combined loads are common.

Weighing 2.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most environments. The standard radial clearance ensures easy installation and maintenance.

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Product Parameters

  • Part Number 3994-3925
  • Brand TFL
  • Interchangeable Timken
  • Size 2.625" x 4.4375" x 1.1875"
  • Bore Dia 2.625"
  • 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 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.220"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 3.57"
  • Cone Backface Backing Diameter 3.39"
  • Cup Frontface Backing Diameter 4.18"
  • Cup Backface Backing Diameter 3.98"
  • 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 3994
  • Cup Part Number 3925
  • 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 2.6 lb

Features

Performance Features of 3994-3925 Bearing

3994-3925 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 31,200 lbf, ensuring reliable performance in 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 well in various environments.

How Is 3994-3925 Bearing Engineered for Reliability?

3994-3925 Bearing features a single-row tapered roller design, ideal for handling both radial and thrust loads.
The chrome steel construction enhances durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 5,570 lbf makes it suitable for demanding industrial uses.
The bearing requires lubrication to maintain optimal performance over time.

Built for Durability: 3994-3925 Bearing

3994-3925 Bearing’s robust chrome steel components provide excellent wear resistance and long service life.
The tapered roller design efficiently distributes loads, reducing stress on individual components.
With a static radial load capacity of 43,000 lbf, it handles heavy loads with ease.
Its open design simplifies maintenance, ensuring reliable operation in various conditions.

Steel vs Ceramic Bearings: Strengths of 3994-3925 Bearing

3994-3925 Bearing uses chrome steel for both rings and rollers, offering a balance of strength and cost-effectiveness.
The steel cage ensures proper roller alignment, enhancing performance under combined loads.
With an ABEC-1 rating, it provides consistent precision for industrial applications.
The bearing’s standard radial clearance allows for smooth operation in diverse settings.

Application

Industrial Uses of 3994-3925 Bearing
The 3994-3925 Bearing is a reliable choice for heavy machinery, especially in construction equipment where combined loads are common. Its tapered roller design handles both radial and thrust forces efficiently.

In automotive applications, 3994-3925 Bearing fits well in wheel hubs and differential systems, thanks to its durable chrome steel construction. The inch sizing makes it compatible with many North American vehicle models.

For industrial fans and pumps, 3994-3925 Bearing’s open design allows easy lubrication, ensuring long service life even in demanding environments. The steel cage adds extra strength under high-speed conditions.

Why Is 3994-3925 Bearing Essential in Machinery?
3994-3925 Bearing excels in agricultural machinery, where its ability to handle combined loads keeps equipment running smoothly. The standard radial clearance offers flexibility for various operating conditions.

In mining equipment, 3994-3925 Bearing’s robust design withstands harsh conditions, reducing downtime. Its ABEC-1 rating ensures consistent performance without overcomplicating precision requirements.

Built for Heavy-Duty Use: 3994-3925 Bearing
3994-3925 Bearing is often used in conveyor systems, where its tapered rollers manage heavy loads effortlessly. The chrome steel rollers resist wear, even in dusty or humid environments.

For gearboxes, 3994-3925 Bearing’s effective center location helps maintain alignment under stress. The dynamic radial load capacity of 31,200 lbf makes it suitable for high-torque applications.

Automotive vs Aerospace: Applications of 3994-3925 Bearing
In automotive drivetrains, 3994-3925 Bearing handles the rigors of daily use with ease. Its static radial load capacity of 43,000 lbf ensures reliability in stop-and-go traffic.

For aerospace ground support equipment, 3994-3925 Bearing’s temperature range (-30° to 110°C) suits varied climates. The steel cage provides lightweight durability without sacrificing strength.

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