SKF 619/9 9x20x6 mm - Deep Groove Ball Bearing

SKF 619/9 9x20x6 mm - Deep Groove Ball Bearing

SKF 619/9 9x20x6 mm is a single-row deep groove ball bearing with a compact, thin radial cross-section. It has a 9 mm bore diameter, 20 mm outside diameter and 6 mm width. The bearing belongs to the 619 dimension series, characterised by a relatively small radial cross-section. The open design allows direct lubrication of the rolling elements within a suitably designed bearing arrangement.

Technical data

Dynamic load rating C, static load rating C0, fatigue load limit Pu, reference speed, limiting speed, mass and cage material are not stated here unless confirmed specifically for the exact SKF 619/9 execution.

What does SKF 619/9 mean?

SKF - bearing manufacturer.

619 - dimension series identifying a compact series of deep groove ball bearings with a relatively small radial cross-section.

/9 - identifies the 9 mm nominal bore diameter.

The correct full designation is:

619/9

not 6199.

The / character is part of the technical SKF designation and should be retained in the product name, technical documentation, product database and purchasing references.

SKF 619/9 dimensions

The principal dimensions are:

9x20x6 mm

where:

• d = 9 mm - bore diameter

• D = 20 mm - outside diameter

• B = 6 mm - bearing width

The combination of a 9 mm bore and 20 mm outside diameter gives the bearing a compact radial cross-section characteristic of the 619 series.

Construction of SKF 619/9

SKF 619/9 is a single-row deep groove ball bearing.

Its basic construction consists of:

• inner ring

• outer ring

• balls as rolling elements

• cage separating and guiding the balls

• deep raceway grooves

Deep groove ball bearings are primarily designed to accommodate radial loads. Their raceway geometry also enables them to accommodate axial loads in both directions within the operating limits of this bearing type.

Why does the 619 series have a compact cross-section?

The 619 series is one of the slimmer dimension series within the deep groove ball bearing family.

In the SKF 619/9, the difference between the 9 mm bore diameter and 20 mm outside diameter is relatively small compared with heavier bearing series.

This compact geometry is useful in bearing arrangements where radial installation space is limited.

However, this does not mean that any bearing with a 9 mm bore can replace the SKF 619/9.

Open bearing design

The basic SKF 619/9 designation without an additional closure suffix identifies an open bearing design.

An open bearing does not have integral rubber seals or metal shields on either side.

This distinction is important when selecting a bearing for a specific operating environment.

Open bearings allow lubricant to reach the rolling elements directly when lubrication is provided by the surrounding bearing arrangement.

If a closed bearing is required, the exact SKF variant with the appropriate closure designation should be selected rather than assuming interchangeability based solely on the 9x20x6 mm dimensions.

SKF 619/9 vs other 9x20x6 mm bearings

Two bearings can have identical 9x20x6 mm principal dimensions without being technically identical.

When comparing alternatives, verify:

• complete manufacturer designation

• bearing type

• open or closed design

• seal or shield configuration

• internal clearance, if specified

• cage execution, where relevant

• precision class, where specified

• requirements of the specific bearing arrangement

Matching dimensions alone do not guarantee complete interchangeability.

Open vs sealed or shielded bearings

An open bearing such as SKF 619/9 differs functionally from versions fitted with integral closures.

Depending on the exact SKF variant, additional suffixes can identify shields or seals.

Closed bearing versions can help retain lubricant and reduce the ingress of contaminants.

An open bearing, by contrast, permits direct access of lubricant to the rolling elements when incorporated into a suitable lubrication system.

The correct version should be selected according to the machine design, lubrication method and operating environment.

Alternative designations and search references

Natural reference formats include:

• SKF 619/9

• 619/9 SKF

• SKF bearing 619/9

• SKF 619/9 9x20x6

• SKF 619/9 bearing

• 619/9 bearing

• 619/9 9x20x6

• 9x20x6 SKF bearing

• 9x20x6 ball bearing

• 9x20x6 deep groove ball bearing

• deep groove ball bearing 619/9

• SKF deep groove ball bearing 619/9

The form 6199 may appear in informal searches, but it should not replace the correct manufacturer designation 619/9 in the product name or technical identification.

OEM and cross-reference numbers are not stated unless specifically confirmed.

How to select a replacement for SKF 619/9

When selecting an alternative bearing, verify:

• complete 619/9 designation

• manufacturer

• deep groove ball bearing type

• single-row construction

• 9 mm bore diameter

• 20 mm outside diameter

• 6 mm width

• open or closed design

• required internal clearance

• required precision class

• lubrication conditions

• radial and axial loading

• rotational speed

• operating temperature

If the original bearing has additional suffixes, they should be included in the identification process.

SKF 619/9 should not automatically be considered interchangeable with every 9x20x6 mm bearing.

Applications

Deep groove ball bearings of the 619 series are suitable for compact bearing arrangements where radial installation space is limited.

The exact application of SKF 619/9 should nevertheless be determined from the documentation of the specific machine, assembly or equipment.

Without confirmed technical documentation, this bearing should not be assigned to a specific:

• electric motor

• gearbox

• power tool

• vehicle

• machine

• industrial equipment

solely on the basis of its dimensions.

Installation of SKF 619/9

Before installation, check:

• shaft condition

• housing condition

• cleanliness of mating surfaces

• dimensional tolerances

• lubrication method

During mounting, installation force should be applied to the ring being fitted with an interference fit.

Mounting force should not be transmitted through the balls and raceways, as this can damage the bearing running surfaces.

Because SKF 619/9 is a compact 9x20x6 mm bearing, appropriately sized mounting tools should be used.

FAQ

What are the dimensions of SKF 619/9?

SKF 619/9 has nominal dimensions of 9x20x6 mm: 9 mm bore diameter, 20 mm outside diameter and 6 mm width.

What type of bearing is SKF 619/9?

It is a single-row deep groove ball bearing.

What does /9 mean in SKF 619/9?

The /9 identifies the 9 mm nominal bore diameter. The slash should be retained as part of the complete bearing designation.

Is the correct designation 619/9 or 6199?

The correct product designation is SKF 619/9. The form 6199 should not replace the official technical designation.

Is SKF 619/9 an open bearing?

Yes. The basic 619/9 designation without an additional seal or shield suffix identifies an open bearing version.

Can SKF 619/9 accommodate axial loads?

As a deep groove ball bearing, it is primarily designed for radial loading, but its raceway geometry also enables it to accommodate axial loads in both directions within the limits of this bearing type.

Is every 9x20x6 mm bearing interchangeable with SKF 619/9?

No. Dimensions are only one part of bearing identification. Closure type, internal clearance, precision, construction and other application requirements should also be checked.

Why is the 619/9 bearing relatively slim?

The 619 dimension series has a compact radial cross-section, making it suitable for bearing arrangements where radial installation space is limited.

SKF 619/9 9x20x6 mm - key information

SKF 619/9 is a single-row deep groove ball bearing with nominal dimensions of 9x20x6 mm: 9 mm bore, 20 mm outside diameter and 6 mm width. It belongs to the compact 619 dimension series and has an open design. The correct manufacturer designation is 619/9, with the / retained as an integral part of the reference.

SKF 619/9 is available from the specialist industrial supplier simmering.pl, with stock in Poland and worldwide shipping. Assistance with bearing identification and technical selection is also available.