TS (Single Row Tapered Roller Bearings) (Imperial) 661-652A

The 661-652A is a single-row tapered roller bearing with a 3.125″ bore and 5.875″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 55,500 lbf radially and 10,100 lbf thrust, suitable for demanding applications.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C, making it versatile for various environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy machinery or automotive uses where combined loads are common.

Weighing 6.7 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Description

Features

Application

Q&A

Product Parameters

Part Number 661-652A
Brand TFL
Interchangeable Timken
Size 3.125" x 5.875" x 1.625"
Bore Dia 3.125"
Bore Dia Tolerance +0.001" to 0
Outer Dia 5.875"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.625"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.25"
Cup Width Tolerance +0.002" to -0.01
Width 1.625"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 4.32"
Cone Backface Backing Diameter 3.78"
Cup Frontface Backing Diameter 5.57"
Cup Backface Backing Diameter 5.20"
Cage Cone Frontface Clearance 0.1"
Cage Cone Backface Clearance 0.17"
Effective Center Location -0.31"
System of Measurement Inch
Type Bearing
Cone Part Number 661
Cup Part Number 652A
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 655
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 55500 lbf
Static Radial Load 75300 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 14400 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 10100 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 6.700 lb

Features

Performance Features of 661-652A Bearing

661-652A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 55,500 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 Does 661-652A Bearing Reduce Friction?

661-652A Bearing’s tapered roller design minimises friction, ensuring smooth operation under combined loads.
The chrome steel construction enhances durability while maintaining efficient performance.
Precision-engineered cage clearance helps maintain roller alignment, further reducing friction.
This design also contributes to longer service life and lower maintenance needs.

Built for Reliability: 661-652A Bearing

661-652A Bearing’s single-row construction provides stability and consistent performance.
Its static radial load capacity of 75,300 lbf ensures reliability in demanding environments.
The standard radial clearance options allow for flexibility in different applications.
With ABEC-1 rating, it balances precision and cost-effectiveness for various industrial uses.

Steel vs Ceramic Bearings: Strengths of 661-652A Bearing

661-652A Bearing uses chrome steel for both rollers and rings, offering excellent strength and durability.
This material choice ensures reliable performance under high dynamic and static loads.
The steel cage provides robust support, maintaining roller alignment during operation.
While ceramic options exist, 661-652A Bearing’s steel construction offers proven reliability at competitive costs.

Application

Industrial Uses of 661-652A Bearing
661-652A Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The inch sizing makes it a straightforward fit for older American machinery still using imperial measurements.

What Makes 661-652A Bearing a Preferred Choice?
In automotive applications, 661-652A Bearing works well in truck wheel hubs, providing reliable performance under heavy radial and thrust loads. Its chrome steel construction ensures durability even in rough driving conditions.

Built for Heavy-Duty Use: 661-652A Bearing
For industrial conveyor systems, 661-652A Bearing’s open design allows easy lubrication, reducing downtime in high-use environments. The standard radial clearance also accommodates slight misalignments common in conveyor setups.

Automotive vs Aerospace: Applications of 661-652A Bearing
While 661-652A Bearing excels in truck and tractor applications, its ABEC-1 rating makes it less suited for high-precision aerospace needs. However, it remains a robust choice for ground vehicles requiring dependable load support.

Perfect Fit for Automation: 661-652A Bearing
In automated manufacturing lines, 661-652A Bearing’s steel cage and tapered rollers provide smooth motion for robotic arms and assembly conveyors. The temperature range also ensures stability in varied factory conditions.