SKF BB1-3339 22x62x20 - Gearbox Bearing

SKF BB1-3339 22x62x20 mm - Gearbox Deep Groove Ball Bearing

SKF BB1-3339 is a special single row deep groove ball bearing with nominal dimensions of 22x62x20 mm, used in automotive gearbox and transmission assemblies. It belongs to SKF's range of application-specific bearings designed for particular mechanical arrangements. Commercially available executions include BB1-3339 CB and BB1-3339 CF. The complete designation is important because bearing geometry, sealing arrangements and mounting features may differ between executions.

Technical Specifications - SKF BB1-3339

Additional Technical Data - SKF BB1-3339 CB

Important dimensional distinction: SKF BB1-3339 CB is commonly marketed as a 22x62x20 mm bearing, but the inner ring is 21 mm wide. Extended dimensional descriptions such as 22x62/67.65x21/20 mm are also used to describe its special geometry.

The basic dynamic load rating C, static load rating C0, fatigue load limit Pu, limiting speed, internal clearance class and cage material have not been reliably confirmed for the unspecified BB1-3339 execution. These values are intentionally omitted rather than estimated.

What Does SKF BB1-3339 Mean?

BB1 - Special SKF Bearing Designation

The BB1 designation is used by SKF for certain special ball bearing designs, including bearings developed for specific mechanical assemblies.

Unlike standard 6000, 6200 or 6300 series bearings, BB1-3339 cannot be fully identified using conventional bearing series designation rules.

Special features may include modified ring widths, locating grooves or application-specific geometry.

3339 - Individual Bearing Design Identifier

The number 3339 forms part of the bearing's individual designation.

It does not independently specify the bore diameter, width, radial internal clearance or sealing arrangement.

These characteristics must be verified using the technical documentation for the exact execution.

CB and CF - Bearing Execution Suffixes

Commercially identified versions include:

• SKF BB1-3339 CB

• SKF BB1-3339 CF

The two suffixes should not automatically be considered interchangeable.

Although both versions are marketed with nominal dimensions of 22x62x20 mm, their complete geometry and mounting requirements must be checked.

Alternative Designations and Search References

The bearing may be searched for using the following terms:

• SKF BB1-3339

• BB1 3339 SKF

• SKF BB1 3339

• SKF BB1-3339 CB

• BB1-3339 CB SKF

• SKF BB1-3339 CF

• SKF BB1-3339 gearbox bearing

• SKF transmission bearing 22x62x20

• SKF gearbox deep groove ball bearing 22x62x20

The suffix CB or CF must be preserved when ordering a specific execution.

Construction of SKF BB1-3339

Single Row Deep Groove Ball Bearing

SKF BB1-3339 belongs to the family of special single row deep groove ball bearings.

A typical single row deep groove ball bearing consists of an inner ring, outer ring, rolling balls and a cage that maintains the correct spacing between the rolling elements.

Deep raceway grooves enable the bearing to accommodate radial loads and axial loads in both directions, subject to the bearing's design and operating conditions.

However, the special geometry of BB1-3339 is particularly important for correct gearbox installation.

Special Outer Ring Geometry

SKF BB1-3339 CB has a groove on the outer ring.

This feature may form part of the bearing's axial locating arrangement inside the gearbox housing.

When replacing the bearing, the groove position, width and associated locating features must be checked.

A standard bearing with the same outside diameter may not provide the correct axial location.

Different Inner and Outer Ring Widths

SKF BB1-3339 CB is commonly described using the nominal dimensions 22x62x20 mm.

However, the inner ring width is 21 mm, while the outer ring width is approximately 20 mm.

This dimensional difference can affect:

• Shaft shoulder contact.

• Spacer positioning.

• Axial location.

• Bearing installation depth.

• Assembly tolerances.

For this reason, replacement selection must not be based on three nominal dimensions alone.

Contact Seals

SKF BB1-3339 CB is identified with two elastomer contact seals.

These seals help reduce contamination and retain lubricant within the bearing.

The same sealing arrangement should not be assumed for every BB1-3339 variant without checking its exact designation.

SKF BB1-3339 as a Gearbox Bearing

SKF BB1-3339 is marketed in the automotive replacement parts sector as a gearbox bearing.

In manual transmission assemblies, bearings support rotating shafts and help maintain their correct position relative to the transmission housing.

Gearbox bearing performance depends on several factors:

• Radial and axial operating loads.

• Shaft rotational speed.

• Correct shaft and housing fits.

• Axial positioning.

• Lubrication conditions.

• Operating temperature.

• Vibration and alignment.

• Compatibility with the transmission housing geometry.

Why Is Special Bearing Geometry Important?

Automotive gearbox bearings are frequently designed for specific mounting arrangements.

A special outer ring groove or an extended inner ring may be necessary for proper installation.

Using a dimensionally similar standard bearing can cause incorrect axial positioning or interfere with adjacent gearbox components.

SKF BB1-3339 must not be selected solely on the basis of its nominal 22x62x20 mm dimensions.

The complete bearing designation and installation geometry must match the transmission requirements.

SKF BB1-3339 vs Standard Deep Groove Ball Bearings

Why a Standard 22x62x20 Bearing May Not Be Suitable

Even if another bearing has the same nominal bore, outside diameter and width, it may differ in:

• Inner ring width.

• Outer ring geometry.

• Locating groove dimensions.

• Sealing arrangement.

• Internal clearance.

• Load capacity.

• Mounting configuration.

These differences can prevent correct installation or affect gearbox operation.

SKF BB1-3339 CB vs SKF BB1-3339 CF

Both designations are associated with special SKF bearings marketed with nominal dimensions of 22x62x20 mm.

However, available product information does not establish that CB and CF have identical geometry or performance.

Before substituting one execution for another, compare the complete manufacturer specifications and mounting dimensions.

Bearing Selection and Interchangeability

Before ordering SKF BB1-3339, verify:

• Complete designation, including CB or CF.

• Bore diameter of 22 mm.

• Outside diameter of 62 mm.

• Nominal bearing width of 20 mm.

• Actual inner and outer ring widths.

• Outer ring groove geometry.

• Sealing arrangement.

• Shaft and housing fits.

• Axial locating requirements.

• Lubrication conditions.

• Transmission manufacturer specifications.

• Compatibility with the existing gearbox assembly.

Alternative Bearing References

FERSA F-18067 is listed by some distributors as an alternative to SKF BB1-3339 CB.

However, distributor cross-references should be treated as identification aids rather than unconditional confirmation of interchangeability.

Before installation, verify the complete geometry, sealing arrangement and relevant technical characteristics.

Installation and Operating Recommendations

Inspect the Existing Bearing

Before removing the original bearing, record the complete designation and inspect its installation arrangement.

Pay particular attention to the outer ring groove and the different ring widths.

Clean the Mounting Surfaces

Clean the shaft, housing and locating surfaces.

Inspect the mating components for wear, corrosion, scoring and deformation.

Apply Mounting Force Correctly

When mounting the bearing onto a shaft, apply force to the inner ring.

When pressing the bearing into a housing, apply force to the outer ring.

Never transmit mounting force through the rolling elements.

Check Axial Positioning

Verify that the bearing is correctly seated against the relevant shaft shoulders and housing locating surfaces.

Special ring geometry must be accommodated by the mounting arrangement.

Protect the Seals

For sealed executions, avoid damaging the contact seals during installation.

Verify Lubrication Requirements

Lubrication requirements must be determined using the documentation for the exact bearing execution and gearbox assembly.

Do not assume that every BB1-3339 variant has the same lubrication arrangement.

Frequently Asked Questions - SKF BB1-3339

What are the dimensions of SKF BB1-3339?

The commonly stated nominal dimensions are 22x62x20 mm. For SKF BB1-3339 CB, the inner ring width is 21 mm, making it important to verify the complete geometry.

Is SKF BB1-3339 a gearbox bearing?

Yes. SKF BB1-3339 is marketed for automotive gearbox and transmission applications. Compatibility with a specific transmission must be verified.

What type of bearing is SKF BB1-3339?

It is a special single row deep groove ball bearing designed for particular mounting arrangements.

Does SKF BB1-3339 CB have seals?

Yes. The CB execution is identified with contact seals on both sides.

Does SKF BB1-3339 have an outer ring groove?

The BB1-3339 CB execution has an outer ring groove. Its exact geometry should be checked before installation.

Are SKF BB1-3339 CB and BB1-3339 CF identical?

Their complete interchangeability has not been established. The suffixes identify different executions, and their detailed geometry must be compared.

How much does SKF BB1-3339 weigh?

The approximate mass of SKF BB1-3339 CB is 0.299 kg. The BB1-3339 CF execution is listed at approximately 0.297 kg.

Can a standard 22x62x20 bearing replace SKF BB1-3339?

Not automatically. The special ring geometry, locating groove and different ring widths may prevent correct installation of a standard bearing.

SKF BB1-3339 - Key Technical Information

SKF BB1-3339 is a special single row deep groove ball bearing with nominal dimensions of 22x62x20 mm, used in automotive gearbox assemblies. The BB1-3339 CB execution features two contact seals, an outer ring groove and a 21 mm inner ring width. Correct replacement selection requires verification of the complete designation and mounting geometry.

SKF BB1-3339 at simmering.pl

SKF BB1-3339 is offered through simmering.pl, a specialist supplier of rolling bearings, sealing products and industrial mechanical components.

We support automotive repair specialists, transmission service workshops, maintenance departments, machinery repair companies and industrial B2B customers.

Our warehouse and order processing operations are located in Lublin, Poland. We supply customers throughout Europe and offer worldwide shipping.