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TS (Single Row Tapered Roller Bearings) (Imperial) 787-772

TS (Single Row Tapered Roller Bearings) (Imperial) 787-772

The 787-772 is a single-row tapered roller bearing with a 4.125″ bore and 7.125″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 77800 lbf radially and 13300 lbf thrust, suitable for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. 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 use in industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 10.5 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, ensuring safe and reliable performance.

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Product Parameters

  • Part Number 787-772
  • Brand TFL
  • Interchangeable Timken
  • Size 4.125" x 7.125" x 1.875"
  • Bore Dia 4.125"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 7.125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.89"
  • 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 +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.280"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 5.43"
  • Cone Backface Backing Diameter 5.08"
  • Cup Frontface Backing Diameter 6.65"
  • Cup Backface Backing Diameter 6.34"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.13"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 787
  • Cup Part Number 772
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 775
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 77800 lbf
  • Static Radial Load 111000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 20200 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 13300 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 10.5 lb

Features

Performance Features of 787-772 Bearing

787-772 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 77,800 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a standard radial clearance, it provides flexibility for various industrial needs.

How Is 787-772 Bearing Engineered for Reliability?

787-772 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction ensures durability, even under high-stress conditions.
Its effective centre location of -0.32″ enhances stability during operation.
The bearing operates efficiently within a temperature range of -30° to 110°C.

Built for Durability: 787-772 Bearing

787-772 Bearing’s tapered roller design distributes loads evenly, reducing wear.
The steel cage provides robust support, maintaining roller position under stress.
With a static radial load capacity of 111,000 lbf, it handles demanding applications.
Its ABEC-1 rating ensures consistent performance for industrial use.

Steel vs Ceramic Bearings: Strengths of 787-772 Bearing

787-772 Bearing uses chrome steel for both rings and rollers, offering excellent strength.
This material choice ensures reliable performance in high-load scenarios.
The bearing’s dynamic thrust rating of 13,300 lbf suits various industrial applications.
Its standard lubrication requirement simplifies maintenance procedures.

Application

Industrial Uses of 787-772 Bearing
787-772 Bearing is commonly used in heavy machinery like mining equipment and construction vehicles, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in tough working conditions.
In automotive applications, 787-772 Bearing fits well in truck wheel hubs and differential systems, providing reliable performance under heavy loads. Its inch sizing makes it compatible with many North American vehicle models.

What Makes 787-772 Bearing a Preferred Choice?
787-772 Bearing’s open design simplifies lubrication, which is essential for industrial gearboxes and large conveyors. The steel cage adds strength, making it suitable for high-load scenarios.
Its standard radial clearance options allow for flexibility in various machinery setups, ensuring smooth operation without excessive friction.

Built for Heavy-Duty Use: 787-772 Bearing
787-772 Bearing excels in agricultural machinery, such as tractors and harvesters, where its robust design withstands constant vibration and dirt exposure. The ABEC-1 rating balances precision and cost-effectiveness.
The bearing’s temperature range (-30° to 110°C) ensures reliability in both cold and moderately hot environments, making it versatile for seasonal equipment.

Automotive vs Aerospace: Applications of 787-772 Bearing
In automotive settings, 787-772 Bearing supports axle systems, offering stability under varying speeds and loads. Its dynamic radial load capacity (77,800 lbf) suits heavy-duty trucks.
For aerospace ground equipment, the bearing’s static radial load rating (111,000 lbf) ensures safety in aircraft tow tractors and cargo loaders, though it’s not used in-flight.

Key Fields for 787-772 Bearing
787-772 Bearing is ideal for railway applications, particularly in freight car axles, where its tapered rollers manage directional stresses efficiently. The steel cage prevents deformation under constant use.
In wind turbines, the bearing’s combined load capacity helps in yaw and pitch systems, though regular lubrication is needed for optimal performance in these high-wear environments.

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