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TS (Single Row Tapered Roller Bearings) (Imperial) 77375-77675

TS (Single Row Tapered Roller Bearings) (Imperial) 77375-77675

The 77375-77675 is a single-row tapered roller bearing with a 3.75″ bore and 6.75″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 90500 lbf radially and 14700 lbf thrust, suitable for heavy-duty use.

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

Weighing 10 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 77375-77675
  • Brand TFL
  • Interchangeable Timken
  • Size 3.75" x 6.75" x 1.875"
  • Bore Dia 3.75"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.75"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.9"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.5"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.88"
  • Cone Backface Backing Diameter 4.45"
  • Cup Frontface Backing Diameter 6.36"
  • Cup Backface Backing Diameter 6.02"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.11"
  • Effective Center Location -0.38"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 77375
  • Cup Part Number 77675
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 77000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 90500 lbf
  • Static Radial Load 107000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 23500 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 14700 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 10 lb

Features

Performance Features of 77375-77675 Bearing

77375-77675 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 90,500 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 77375-77675 Bearing Engineered for Reliability?

77375-77675 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides excellent wear resistance, extending its service life.
Its dynamic thrust rating of 14,700 lbf ensures consistent performance under demanding conditions.
The standard radial clearance options allow for flexibility in different applications.

Built for Durability: 77375-77675 Bearing

77375-77675 Bearing’s robust design includes precise cone and cup width tolerances for proper fit.
The chrome steel rollers and rings work together to handle high static radial loads up to 107,000 lbf.
Its ABEC-1 rating ensures reliable precision in various industrial settings.
The open seal type allows for easy lubrication maintenance when required.

Steel vs Ceramic Bearings: Strengths of 77375-77675 Bearing

77375-77675 Bearing uses chrome steel for both rollers and rings, providing excellent strength-to-weight ratio.
This material choice makes it more cost-effective than ceramic options while maintaining good performance.
The steel cage design offers durability without compromising on roller alignment.
With a weight of 10 lb, it balances sturdiness and manageable size for its load capacity.

Application

Industrial Uses of 77375-77675 Bearing
77375-77675 Bearing is commonly used in heavy machinery like construction equipment and mining gear, where its tapered roller design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability even in tough working conditions.

In automotive applications, 77375-77675 Bearing fits well in truck wheel hubs and differential systems, providing reliable performance under heavy loads. Its inch sizing makes it a straightforward replacement for Timken equivalents in North American vehicles.

For industrial fans and pumps, 77375-77675 Bearing’s open design allows easy lubrication, extending service life in continuous operation. The steel cage adds stability, reducing wear during high-speed rotations.

Where Is 77375-77675 Bearing Used?
You’ll often find 77375-77675 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design copes with uneven loads and dusty environments. The standard radial clearance offers a balance between precision and durability.

In material handling systems, 77375-77675 Bearing supports conveyor rollers, ensuring smooth movement under constant stress. Its ABEC-1 rating provides sufficient accuracy for most industrial applications without unnecessary cost.

Built for Heavy-Duty Use: 77375-77675 Bearing
77375-77675 Bearing excels in forestry equipment like log splitters, where its high static radial load capacity prevents deformation under extreme pressure. The tapered rollers distribute forces evenly, reducing friction.

For railway applications, 77375-77675 Bearing handles the axial and radial stresses in freight car axles reliably. The temperature range of -30° to 110°C ensures performance in varying climates.

Automotive vs Aerospace: Applications of 77375-77675 Bearing
In automotive settings, 77375-77675 Bearing is ideal for heavy-duty truck transmissions, where its dynamic thrust rating ensures longevity. The steel cage prevents roller misalignment during sudden shifts.

For industrial gearboxes, 77375-77675 Bearing’s chrome steel rollers withstand continuous operation without excessive wear. The standard lubrication requirement simplifies maintenance in hard-to-access installations.

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