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TS (Single Row Tapered Roller Bearings) (Imperial) 3777-3730

TS (Single Row Tapered Roller Bearings) (Imperial) 3777-3730

The 3777-3730 is a single-row tapered roller bearing with a 1.8125″ bore and 3.6718″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 27500 lbf radially and 4120 lbf thrust, suitable for demanding applications.

Its open design allows 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, making it a practical choice for replacements. Ideal for machinery like gearboxes or wheel hubs where combined loads are common.

Weighing 2.1 lb, it offers a robust build for its size. Compliant with RoHS and REACH standards, it’s a reliable option for various industrial uses.

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Product Parameters

  • Part Number 3777-3730
  • Brand TFL
  • Interchangeable Timken
  • Size 1.8125" x 3.6718" x 1.1876"
  • Bore Dia 1.8125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.6718"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.193"
  • 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 2.09"
  • Cone Backface Backing Diameter 2.36"
  • Cup Frontface Backing Diameter 3.50"
  • Cup Backface Backing Diameter 3.31"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3777
  • Cup Part Number 3730
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3700
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 27500 lbf
  • Static Radial Load 34300 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 7120 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4120 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 2.1 lb

Features

Performance Features of 3777-3730 Bearing

3777-3730 Bearing is crafted with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 27,500 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 3777-3730 Bearing Engineered for Reliability?

3777-3730 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction resists wear, ensuring a long service life even under stress.
Its standard radial clearance allows for smooth operation, minimising friction.
The bearing requires lubrication, but its sturdy build reduces maintenance frequency.

Built for Durability: 3777-3730 Bearing

3777-3730 Bearing’s chrome steel components provide excellent resistance to wear and tear.
The tapered roller design efficiently manages both radial and thrust loads.
With a static radial load capacity of 34,300 lbf, it handles demanding conditions with ease.
Its ABEC-1 rating ensures consistent performance for industrial applications.

Steel vs Ceramic Bearings: Strengths of 3777-3730 Bearing

3777-3730 Bearing uses chrome steel for both rings and rollers, balancing cost and performance.
This material choice offers good wear resistance and load capacity without ceramic’s brittleness.
The steel cage maintains roller spacing, crucial for tapered bearing efficiency.
Its 2.1 lb weight makes it manageable while retaining structural strength.

Application

Industrial Uses of 3777-3730 Bearing
3777-3730 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 3777-3730 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a straightforward replacement for many North American vehicle models.

For industrial fans and pumps, 3777-3730 Bearing’s open design allows for easy lubrication, extending service life in continuous operation. The standard radial clearance offers flexibility for different installation requirements.

What Makes 3777-3730 Bearing a Preferred Choice?
3777-3730 Bearing stands out in conveyor systems due to its ability to manage both radial and thrust loads smoothly. The steel cage adds robustness, making it suitable for high-load scenarios.

In mining equipment, 3777-3730 Bearing’s tapered rollers distribute stress evenly, reducing wear over time. Its compatibility with Timken models simplifies maintenance and part sourcing.

Built for Heavy-Duty Use: 3777-3730 Bearing
3777-3730 Bearing excels in gearboxes, where its precise tolerances ensure smooth power transmission. The ABEC-1 rating balances performance and cost for general industrial needs.

For forestry machinery, 3777-3730 Bearing’s resistance to shock loads makes it a dependable choice. The inch measurements align with older equipment specifications, easing upgrades.

Automotive vs Aerospace: Applications of 3777-3730 Bearing
In automotive drivetrains, 3777-3730 Bearing handles high torque and variable speeds reliably. Its static load capacity suits stop-start conditions common in urban driving.

For ground support aerospace equipment, 3777-3730 Bearing’s temperature range accommodates outdoor storage and operation. The standard lubrication requirement simplifies upkeep in hangar environments.

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