TIMKEN 26820 80.167x20.638 mm - Tapered Roller Bearing Cup

TIMKEN 26820 80.167x20.638 mm - Tapered Roller Bearing Cup

TIMKEN 26820 is a single cup (outer race) for an inch-series tapered roller bearing. The 26820 designation identifies the outer ring only, not a complete bearing assembly. The cup has an outside diameter of 80.167 mm and a width of 20.638 mm. To form a complete tapered roller bearing assembly, the 26820 cup must be matched with the appropriate cone.

Technical data - TIMKEN 26820

What does TIMKEN 26820 mean?

26820 is the TIMKEN catalogue designation for a tapered roller bearing cup.

This distinction is important:

TIMKEN 26820 is not a complete tapered roller bearing.

A conventional single-row tapered roller bearing consists of two separable components:

• cone - inner ring, rollers and cage assembly

• cup - outer ring

TIMKEN 26820 is the cup, or outer race, of the bearing assembly.

TIMKEN 26820 dimensions

The principal dimensions of the 26820 cup are:

• Outside diameter D: 80.167 mm

• Cup width C: 20.638 mm

Imperial dimensions:

• Outside diameter D: 3.1562 in

• Cup width C: 0.8125 in

For the cup itself, an inside bore diameter d should not be specified as if 26820 were a complete bearing. The bore diameter of the complete bearing assembly depends on the cone paired with the 26820 cup.

TIMKEN 26820 tapered roller bearing cup

Tapered roller bearings use tapered raceways together with tapered rollers. Their geometry allows them to accommodate radial loads together with axial loads.

The separable construction means that the cone and cup have their own individual TIMKEN designations.

For this reason, the designation 26820 should be identified as a specific outer race rather than used as the designation of a complete bearing.

TIMKEN 26820 and 26882/26820

One officially catalogued TIMKEN bearing assembly using the 26820 cup is:

TIMKEN 26882/26820

This assembly consists of:

• Cone: 26882

• Cup: 26820

• Bore diameter d: 41.275 mm

• Outside diameter D: 80.167 mm

• Overall width T: 25.400 mm

The complete 26882/26820 bearing therefore has dimensions:

41.275x80.167x25.400 mm

However, this does not mean that TIMKEN 26820 should always be identified as a 26882/26820 bearing assembly.

Does 26820 fit only the 26882 cone?

No.

TIMKEN catalogues the 26820 cup in combination with different cones. This means that the 26820 designation itself does not define one specific bore diameter for the complete bearing.

Examples of bearing combinations using the 26820 cup include:

• 26877/26820

• 26880/26820

• 26881/26820

• 26882/26820

• 26883/26820

• 26885/26820

• 26886/26820

When a complete tapered roller bearing is required, both the cone and cup designations must therefore be identified.

TIMKEN 26820 construction

TIMKEN 26820 is the outer ring of a tapered roller bearing.

Its internal tapered raceway works together with the tapered rollers of a compatible cone assembly. The cone contains the inner ring, rolling elements and cage, while the cup provides the corresponding outer raceway.

This separable design is characteristic of tapered roller bearings and allows the cone and cup to be handled and identified as individual components.

TIMKEN 26820 vs complete tapered roller bearing

The distinction between the individual cup and a complete bearing is particularly important when ordering replacement components.

TIMKEN 26820

Outer race / single cup only.

TIMKEN 26882/26820

Complete bearing set consisting of cone 26882 and cup 26820.

Therefore, a listing for 26820 TIMKEN should not automatically specify the bore diameter or overall bearing width taken from one particular cone/cup combination.

How to select TIMKEN 26820

If the removed outer race is marked TIMKEN 26820, the designation identifies the cup itself.

If a complete tapered roller bearing is required, the cone designation must also be determined.

Do not select a complete bearing based only on:

• 26820 designation

• 80.167 mm outside diameter

• 20.638 mm cup width

The selected cone determines additional dimensions and characteristics of the complete bearing assembly, including its bore diameter and overall width.

Alternative designations and search references

TIMKEN 26820 may also be searched as:

• TIMKEN 26820

• 26820 TIMKEN

• Timken 26820 cup

• 26820 bearing cup

• TIMKEN 26820 bearing cup

• 26820 outer race

• TIMKEN 26820 outer race

• TIMKEN 26820 outer ring

• 26820 tapered roller bearing cup

• TIMKEN 26820 80.167 mm

• TIMKEN 26820 3.1562 in

• 26882/26820 TIMKEN

The last designation refers to the complete 26882/26820 bearing assembly, not to the 26820 cup alone.

Installation

Before installation, check the housing and mating components for contamination, damage and wear.

The cup should be installed squarely and evenly into the housing without damaging the raceway. Installation force should be applied to the ring being fitted and should not be transmitted through the rolling elements.

When replacing a component of a tapered roller bearing assembly, the compatibility and condition of the mating cone should also be verified.

FAQ

What is TIMKEN 26820?

TIMKEN 26820 is a single cup, or outer race, for a tapered roller bearing. It is not a complete bearing.

What are the dimensions of TIMKEN 26820?

The 26820 cup has an 80.167 mm outside diameter and a 20.638 mm cup width.

What are the inch dimensions of TIMKEN 26820?

The outside diameter is 3.1562 in and the cup width is 0.8125 in.

Does TIMKEN 26820 have a bore diameter?

The 26820 designation identifies the outer cup. A bearing bore diameter should not be assigned to the cup itself as if it were a complete bearing. The bore depends on the cone used in the complete assembly.

Is TIMKEN 26820 the same as TIMKEN 26882/26820?

No. 26820 is the cup only. 26882/26820 is a complete bearing assembly consisting of cone 26882 and cup 26820.

What are the dimensions of TIMKEN 26882/26820?

The complete TIMKEN 26882/26820 tapered roller bearing has dimensions of 41.275x80.167x25.400 mm.

Can TIMKEN 26820 be used with different cones?

Yes. TIMKEN catalogues the 26820 cup with multiple compatible cone designations. The correct cone must be selected for the required bearing configuration.

Can TIMKEN 26820 be purchased separately?

Yes. TIMKEN identifies 26820 as an individual Single Cup.

TIMKEN 26820 - key information

TIMKEN 26820 is a single cup (outer race) for an inch-series tapered roller bearing, with an outside diameter of 80.167 mm and a cup width of 20.638 mm. It is not a complete bearing. A compatible TIMKEN cone must be selected to create the required tapered roller bearing assembly.

Available from simmering.pl, a specialist supplier of bearings, seals and industrial components. Stock in Poland with worldwide shipping.