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TS (Single Row Tapered Roller Bearings) (Imperial) 943-930

TS (Single Row Tapered Roller Bearings) (Imperial) 943-930

The 943-930 is a single-row tapered roller bearing with a 3.875″ bore and 8.125″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 129,000 lbf radially and 18,600 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 construction equipment where heavy loads are common.

Weighing 23 lb, it’s built to last and complies with RoHS and REACH standards for safe use. The standard radial clearance can be adjusted to C3, C4, or C5 if needed.

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Product Parameters

  • Part Number 943-930
  • Brand TFL
  • Interchangeable Timken
  • Size 3.875" x 8.125" x 2.625"
  • Bore Dia 3.875"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 8.125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 2.625"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 2.125"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.625"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 5.31"
  • Cone Backface Backing Diameter 4.72"
  • Cup Frontface Backing Diameter 7.61"
  • Cup Backface Backing Diameter 7.24"
  • Cage Cone Frontface Clearance 0.09"
  • Cage Cone Backface Clearance 0.23"
  • Effective Center Location -0.78"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 943
  • Cup Part Number 930
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 935
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 129000 lbf
  • Static Radial Load 177000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 33300 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 18600 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 23 lb

Features

Performance Features of 943-930 Bearing

943-930 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 129,000 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 environmental conditions.

How Does 943-930 Bearing Reduce Friction?

943-930 Bearing’s tapered roller design minimises friction, promoting smooth operation under combined loads.
The chrome steel construction enhances durability while maintaining efficient performance.
Its standard radial clearance allows for optimal load distribution, reducing wear over time.
This design ensures consistent operation even at high speeds or heavy loads.

Engineered for Precision: 943-930 Bearing

943-930 Bearing offers precise performance with its single-row tapered roller construction.
The chrome steel components provide excellent strength and resistance to wear.
Its effective centre location of -0.78″ ensures stable operation in demanding applications.
With ABEC-1 rating, it delivers reliable precision for industrial uses.

Steel vs Ceramic Bearings: Strengths of 943-930 Bearing

943-930 Bearing utilises chrome steel for both rings and rollers, ensuring robust performance.
This material choice provides excellent load capacity while maintaining cost-effectiveness.
The steel cage design offers reliable roller guidance without compromising durability.
Compared to ceramic options, 943-930 Bearing delivers practical strength for industrial applications.

Application

Industrial Uses of 943-930 Bearing
The 943-930 Bearing is a solid choice for heavy machinery like construction equipment and mining rigs, where its tapered roller design handles combined loads effortlessly. Its chrome steel construction ensures durability even in tough working conditions.

In automotive applications, 943-930 Bearing fits well in truck wheel hubs and differential systems, providing reliable performance under high radial and thrust loads. The imperial sizing makes it compatible with many North American vehicle models.

For industrial fans and pumps, 943-930 Bearing’s open design allows for easy lubrication, extending its service life in continuous operation. The steel cage adds extra strength, making it suitable for high-vibration environments.

Where Is 943-930 Bearing Used?
You’ll often find 943-930 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design handles uneven loads and rough terrain. The standard radial clearance ensures smooth rotation even under stress.

In conveyor systems, 943-930 Bearing supports heavy loads while maintaining alignment, thanks to its precise taper roller configuration. Its ABEC-1 rating balances performance and cost for general industrial use.

Built for Heavy-Duty Use: 943-930 Bearing
The 943-930 Bearing excels in forestry equipment like log splitters and sawmills, where its high static radial load capacity is crucial. The chrome steel rollers resist wear, even in dusty or wet conditions.

For railway applications, 943-930 Bearing’s effective center location helps maintain stability in railcar axles. Its temperature range of -30° to 110°C ensures reliability in varying climates.

Automotive vs Aerospace: Applications of 943-930 Bearing
In automotive settings, 943-930 Bearing is commonly used in heavy-duty truck transmissions, where its dynamic thrust rating handles shifting loads. The steel cage provides added durability for long-haul vehicles.

For aerospace ground support equipment, 943-930 Bearing’s inch sizing and standard radial clearance make it a practical choice. However, its ABEC-1 rating limits it to non-critical applications like cargo loaders.

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