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TS (Single Row Tapered Roller Bearings) (Imperial) HM321245-HM321210

TS (Single Row Tapered Roller Bearings) (Imperial) HM321245-HM321210

The HM321245-HM321210 is a single-row tapered roller bearing with a 3.906″ bore and 6.75″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 77,700 lbf radially and 11,800 lbf thrust, making it a robust choice 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, offering a reliable replacement option. Ideal for industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 9.7 lb, it’s built to last while meeting RoHS and REACH standards for safety and compliance.

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Product Parameters

  • Part Number HM321245-HM321210
  • Brand TFL
  • Interchangeable Timken
  • Size 3.906" x 6.75" x 1.9375"
  • Bore Dia 3.906"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.75"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.9375"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.5"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.9375"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.95"
  • Cone Backface Backing Diameter 4.57"
  • Cup Frontface Backing Diameter 6.48"
  • Cup Backface Backing Diameter 6.10"
  • Cage Cone Frontface Clearance 0.08"
  • Cage Cone Backface Clearance 0.14"
  • Effective Center Location -0.44"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number HM321245
  • Cup Part Number HM321210
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series HM321200
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 77700 lbf
  • Static Radial Load 109000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 20100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 11800 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 9.7 lb

Features

Performance Features of HM321245-HM321210 Bearing

HM321245-HM321210 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 77,700 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 HM321245-HM321210 Bearing Engineered for Reliability?

HM321245-HM321210 Bearing features precise tolerances, with bore and outer diameters held to +0.001″ for consistent fit.
The tapered roller design distributes loads evenly, enhancing durability under stress.
Its ABEC-1 rating ensures smooth operation, suitable for general industrial use.
The standard radial clearance allows for flexibility in different applications.

Designed for Durability: HM321245-HM321210 Bearing

HM321245-HM321210 Bearing’s chrome steel construction resists wear, even in demanding conditions.
The single-row design simplifies installation while maintaining high load capacity.
With a static radial load of 109,000 lbf, it handles heavy loads reliably.
Regular lubrication ensures long service life and consistent performance.

Steel vs Ceramic Bearings: Strengths of HM321245-HM321210 Bearing

HM321245-HM321210 Bearing uses chrome steel for its rollers and rings, balancing cost and performance.
This material choice provides excellent strength and wear resistance in industrial settings.
The bearing’s dynamic thrust rating of 11,800 lbf makes it versatile for various load types.
Its standard radial clearance options (C3/C4/C5) allow for customisation based on application needs.

Application

Industrial Uses of HM321245-HM321210 Bearing
HM321245-HM321210 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, HM321245-HM321210 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a preferred choice for North American vehicle models.

For industrial conveyor systems, HM321245-HM321210 Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The standard radial clearance offers flexibility for different operational needs.

What Makes HM321245-HM321210 Bearing a Preferred Choice?
HM321245-HM321210 Bearing stands out in agricultural machinery due to its ability to handle both radial and thrust loads smoothly. The steel cage adds robustness, making it suitable for rough terrains.

In mining equipment, HM321245-HM321210 Bearing’s high dynamic radial load capacity ensures reliable operation under extreme conditions. The ABEC-1 rating provides a balance between precision and cost-effectiveness.

Built for Heavy-Duty Use: HM321245-HM321210 Bearing
HM321245-HM321210 Bearing excels in forestry machinery, where its tapered rollers manage uneven loads effectively. The temperature range of -30° to 110°C ensures performance in diverse climates.

For railway applications, HM321245-HM321210 Bearing’s static radial load capacity makes it ideal for axle boxes. The inch measurements simplify replacements in older rolling stock.

Automotive vs Aerospace: Applications of HM321245-HM321210 Bearing
In automotive drivetrains, HM321245-HM321210 Bearing supports high-torque scenarios like truck transmissions. Its compatibility with Timken models simplifies maintenance.

For aerospace ground equipment, HM321245-HM321210 Bearing’s reliability is key in hydraulic systems. The chrome steel rollers resist wear even during frequent use.

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