NTN 4T-16150/16283 38.100x72.238x23.812 - Tapered Roller Bearing

NTN 4T-16150/16283 38.100x72.238x23.812 mm - Single Row Tapered Roller Bearing

NTN 4T-16150/16283 is a single row inch-series tapered roller bearing manufactured by NTN Corporation, with overall dimensions of 38.100x72.238x23.812 mm. It consists of a separable inner ring assembly with tapered rollers and a cage, designated 16150, and a matching outer ring, designated 16283. The 4T prefix identifies NTN's special heat-treated bearing design. The bearing accommodates combined radial and unidirectional axial loads.

Technical Specifications - NTN 4T-16150/16283

Dimensional note: The overall width T is listed as 23.812 mm in the referenced catalogue data. Some catalogues display 23.813 mm due to rounding of the nominal inch dimension of 0.9375 inches.

The overall bearing width T must not be confused with the inner ring width B or outer ring width C.

What Does NTN 4T-16150/16283 Mean?

4T - NTN Bearing Design

The 4T prefix identifies an NTN tapered roller bearing version associated with the manufacturer's special heat treatment technology.

This designation is technically significant and should be retained when identifying or ordering the bearing.

It should not be interpreted as a universal suffix used by all bearing manufacturers.

16150 - Inner Ring Assembly (Cone)

The designation 16150 identifies the inner ring assembly, commonly referred to as the cone.

The cone assembly consists of:

• Inner ring with a tapered raceway.

• Tapered rolling elements.

• Roller cage.

Its bore diameter is 38.100 mm, while the inner ring width B is 20.638 mm.

16283 - Outer Ring (Cup)

The designation 16283 identifies the outer ring, commonly referred to as the cup.

The cup contains the tapered outer raceway that works with the rollers of the cone assembly.

Its outside diameter is 72.238 mm, and its width C is 19.050 mm.

Meaning of the Slash in 16150/16283

The slash separates the cone and cup reference numbers.

The complete designation identifies the combination of these two compatible bearing components.

The original designation must be preserved as:

4T-16150/16283

Construction and Operating Principle

NTN 4T-16150/16283 is a single row tapered roller bearing with separable inner and outer ring components.

The tapered rollers operate between the conical raceways of the cone and cup.

This geometry enables the bearing to accommodate combined radial and axial loading.

Tapered Rolling Elements

The tapered geometry of the rollers and raceways allows the bearing to transmit radial forces together with axial forces acting in one direction.

Unlike a deep groove ball bearing, a single row tapered roller bearing generally requires an appropriately designed bearing arrangement to provide axial location in both directions.

Separable Construction

The cone assembly and cup can be installed separately.

This design is useful where the inner and outer bearing components must be mounted in different parts of a mechanical assembly.

However, the cone and cup must form the correct compatible combination.

Axial Load Direction

A single row tapered roller bearing accommodates axial load in one direction.

Where axial loads act in both directions, tapered roller bearings are commonly installed in opposed arrangements.

Correct adjustment of axial clearance or preload is important for operating temperature, stiffness and bearing life.

Load Ratings of NTN 4T-16150/16283

The catalogue load ratings are:

Basic Dynamic Load Rating C

The basic dynamic load rating is used in nominal bearing fatigue life calculations.

It is not the maximum permissible operating load under all conditions.

Actual bearing life depends on equivalent load, rotational speed, lubrication, contamination and operating conditions.

Basic Static Load Rating C0

The basic static load rating relates to a defined criterion for permanent deformation at the rolling contacts.

The required static safety factor must be considered when selecting the bearing for a particular application.

NTN 4T-16150/16283 vs Other Variants

The NTN catalogue also includes the combinations 4T-16150/16282 and 4T-16150/16284.

These variants use the same 16150 cone reference but different outer ring components and overall dimensions.

These variants are not automatically interchangeable.

The overall width is particularly important because it affects the axial positioning of bearing components and the mounting arrangement.

Even when the bore and outside diameters are identical, a difference in overall width may prevent direct replacement.

Alternative Designations and Reference Numbers

Natural reference formats for this bearing include:

• NTN 4T-16150/16283

• 4T-16150/16283 NTN

• NTN 16150/16283

• 16150/16283

• NTN 4T-16150 cone / 4T-16283 cup

The shortened designation 16150/16283 identifies the cone and cup combination.

However, the complete 4T prefix should be retained when ordering the specified NTN version.

No unverified OEM numbers or additional cross-reference numbers are assigned to this product.

Bearing Selection and Interchangeability

Before purchasing NTN 4T-16150/16283, verify:

1. Complete designation: 4T-16150/16283.

2. Bore diameter d: 38.100 mm.

3. Outside diameter D: 72.238 mm.

4. Overall width T: 23.812 mm.

5. Inner ring width B: 20.638 mm.

6. Outer ring width C: 19.050 mm.

7. Required radial and axial load capacity.

8. Shaft and housing fits.

9. Required axial clearance or preload.

10. Lubrication conditions and operating speed.

A bearing from another manufacturer with the same cone and cup references may be considered as an alternative only after verifying dimensional tolerances, load ratings and application requirements.

Identical nominal dimensions alone do not guarantee complete interchangeability.

Applications of NTN 4T-16150/16283

NTN 4T-16150/16283 is intended for appropriately designed bearing arrangements involving combined radial and axial loading.

Typical application categories for single row tapered roller bearings include:

• Rotating shaft supports.

• Mechanical power transmission assemblies.

• Selected wheel hub arrangements.

• Industrial machinery.

• Bearing arrangements requiring adjustable axial clearance or preload.

These are general applications of single row tapered roller bearings, not confirmed OEM applications for the specific NTN 4T-16150/16283 reference.

Suitability for a particular vehicle, gearbox or machine must be verified using the original equipment specification or an engineering assessment.

Installation and Operating Recommendations

Correct installation is essential for tapered roller bearing performance.

Before mounting:

• Inspect the shaft and housing surfaces.

• Remove contamination from mounting areas.

• Verify the required shaft and housing fits.

• Protect the raceways and rollers from mechanical damage.

• Apply mounting forces to the ring being installed.

• Avoid transmitting mounting forces through the rolling elements.

• Use a suitable lubricant.

• Adjust axial clearance or preload according to the equipment manufacturer's requirements.

Bearing Clearance and Preload

Single row tapered roller bearings are commonly used in arrangements where axial clearance or preload is established during assembly.

Incorrect adjustment may cause excessive friction, overheating, vibration or premature bearing damage.

The correct setting depends on the bearing arrangement, load and operating conditions.

Lubrication

The lubrication method must be selected according to operating speed, load, temperature and environmental conditions.

The product designation does not specify a particular grease or oil grade.

Storage

Store NTN 4T-16150/16283 in its original protective packaging in a clean, dry environment.

Protect the bearing from moisture, dust, corrosion and mechanical impact.

FAQ - NTN 4T-16150/16283

1. What are the dimensions of NTN 4T-16150/16283?

The bearing has a bore diameter of 38.100 mm, an outside diameter of 72.238 mm and an overall width of 23.812 mm.

2. What does 4T mean in the NTN designation?

The 4T prefix identifies an NTN tapered roller bearing version associated with the manufacturer's special heat treatment technology.

3. What do 16150 and 16283 mean?

16150 identifies the cone assembly, while 16283 identifies the matching outer ring or cup.

4. Are NTN 4T-16150/16283 and 4T-16150/16284 interchangeable?

Not automatically. Although they have the same nominal bore and outside diameters, their overall widths are different.

5. What is the load rating of NTN 4T-16150/16283?

The catalogue basic dynamic load rating is 48.00 kN, and the basic static load rating is 58.50 kN.

6. Can a single bearing support axial loads in both directions?

No. A single row tapered roller bearing accommodates axial load in one direction. Opposed bearing arrangements are generally used where axial loads act in both directions.

7. Is the inner ring width the same as the overall bearing width?

No. The inner ring width B is 20.638 mm, while the overall bearing width T is 23.812 mm.

NTN 4T-16150/16283 - Key Technical Information

NTN 4T-16150/16283 is a single row tapered roller bearing with overall dimensions of 38.100x72.238x23.812 mm. The 4T prefix identifies NTN's heat-treated design, while 16150 and 16283 designate the cone and cup. Its separable construction accommodates combined radial and unidirectional axial loads. The catalogue basic dynamic load rating is 48.00 kN.

NTN 4T-16150/16283 is offered by simmering.pl, a specialist supplier of industrial bearings and technical sealing products.

With warehouse operations in Lublin, Poland, simmering.pl serves industrial maintenance departments, engineering companies and international B2B customers, with worldwide shipping options.