SKF W 6005 2RS 25x47x12 Stainless Steel Deep Groove Ball Bearing

What Is the SKF W 6005 2RS Bearing?

SKF W 6005 2RS is a single-row stainless steel deep groove ball bearing with dimensions 25x47x12 mm, designed for applications where increased resistance to corrosion is required. The prefix W identifies SKF stainless steel deep groove ball bearings. Sealed versions have seals on both sides to retain lubricant and protect the rolling elements and raceways against contaminants. SKF catalogue data confirms the W 6005 dimensional series at 25 mm bore, 47 mm outside diameter and 12 mm width.

Technical Specifications

Manufacturer: SKF

Basic designation: W 6005

Bearing type: Stainless steel deep groove ball bearing

Design: Single row

Bore diameter d: 25 mm

Outside diameter D: 47 mm

Width B: 12 mm

Dimensions: 25x47x12 mm

Bore type: Cylindrical

Rolling elements: Balls

Material: Stainless steel bearing construction

Sealing: Both sides in 2RS execution

Load direction: Radial and axial in both directions

SKF's stainless steel bearing catalogue confirms W 6005 as the stainless steel version of this dimensional series.

What Does W Mean in SKF W 6005?

The prefix W is technically important. In SKF nomenclature it identifies the stainless steel deep groove ball bearing range.

This differentiates W 6005 from the standard 6005 bearing made from conventional bearing steel.

SKF stainless steel deep groove ball bearings are intended for applications where corrosion resistance is an important operating requirement.

What Does 2RS Mean?

2RS is commonly used commercially to describe a bearing sealed on both sides.

For exact SKF identification, the complete manufacturer suffix should always be checked. SKF catalogue versions of the stainless steel 6005 include, for example, the designation W 6005-2RS1/VP311.

The seals help:

• retain lubricant inside the bearing,
• reduce lubricant leakage,
• protect raceways and balls,
• limit the ingress of contaminants.

SKF W 6005 Dimensions

The principal dimensions are:

d: 25 mm

D: 47 mm

B: 12 mm

Therefore, the complete dimensional identification is:

25x47x12 mm

SKF catalogue documentation confirms these dimensions for both the open W 6005 and sealed W 6005-2RS1/VP311 executions.

SKF W 6005 Catalogue Data

For the sealed SKF W 6005-2RS1/VP311 25x47x12, SKF catalogue data specifies:

Basic dynamic load rating C: 8.71 kN

Basic static load rating C0: 5.85 kN

Fatigue load limit Pu: 0.25 kN

Limiting speed: 9,500 r/min

Mass: approximately 0.077 kg

These values apply to the specific W 6005-2RS1/VP311 catalogue execution and should not automatically be assigned to every W 6005 variant without checking its complete suffix.

Stainless Steel Deep Groove Ball Bearing

The stainless steel construction is the key feature distinguishing the SKF W 6005 from a standard SKF 6005.

SKF identifies stainless steel deep groove ball bearings as a solution for environments where corrosion can affect bearing reliability. Stainless steel versions are particularly relevant where machinery is exposed to moisture, frequent cleaning or other corrosive operating conditions.

Radial and Axial Loads

The W 6005 uses the conventional deep groove ball bearing geometry.

This bearing type is designed primarily for radial loads but can also accommodate axial loads in both directions.

Its single-row deep groove construction provides a compact bearing arrangement suitable for a broad range of rotating machinery.

Corrosion Resistance

The principal technical reason for selecting a W-series SKF bearing instead of a standard bearing-steel 6005 is improved corrosion resistance.

This can be important in applications involving:

• moisture,
• wet environments,
• frequent washdown,
• food processing equipment,
• beverage processing machinery,
• humid production areas,
• machinery where conventional bearing steel is susceptible to corrosion.

SKF specifically positions its stainless steel deep groove ball bearing technology for wet and corrosive environments.

SKF Food Line Variant

SKF also lists W 6005-2RS1/VP311 within its Food Line stainless steel deep groove ball bearing range.

For this specific execution, SKF describes stainless steel components, food-compatible sealing technology and food-grade lubrication intended for food and beverage environments.

The VP311 suffix is significant. Food Line properties should not automatically be attributed to a bearing marked only W 6005 without confirming the complete designation.

Typical Applications

Stainless steel deep groove ball bearings can be selected for suitable:

• Food processing machinery
• Beverage processing equipment
• Pumps
• Conveyors
• Packaging machinery
• Wet production environments
• Cleaning equipment
• Industrial machinery exposed to moisture
• Corrosion-sensitive rotating assemblies

The exact bearing execution should be selected according to load, speed, temperature, contamination, lubrication and corrosion requirements.

W 6005 vs Standard 6005

Both bearings share the same principal dimensions:

25x47x12 mm

However, W 6005 should not be treated as identical to a standard 6005.

The critical distinction is the stainless steel construction and the associated catalogue characteristics. Load ratings can also differ between standard bearing-steel and stainless steel executions.

For replacement purposes, the W prefix must therefore be considered part of the technical designation.

How to Select an SKF W 6005 Replacement

Verify:

Manufacturer: SKF

Designation: W 6005

Dimensions: 25x47x12 mm

Bearing type: Deep groove ball bearing

Material execution: Stainless steel

Sealing: Both sides

Exact seal suffix: according to the original bearing

Additional suffixes: such as VP311, if specified

Matching only the dimensions 25x47x12 mm is insufficient when the original application requires a stainless steel bearing.

Frequently Asked Questions FAQ

What are the dimensions of SKF W 6005?
SKF W 6005 has a 25 mm bore, 47 mm outside diameter and 12 mm width.

What does W mean in SKF W 6005?
The W designation identifies SKF's stainless steel deep groove ball bearing range.

Is SKF W 6005 the same as standard SKF 6005?
No. Although the principal dimensions are the same, W 6005 is a stainless steel bearing execution and has different catalogue characteristics.

Is W 6005 suitable for corrosive environments?
Stainless steel deep groove ball bearings are designed for applications where improved corrosion resistance is required. SKF specifically offers stainless steel bearing technologies for wet and corrosive environments.

What does 2RS mean in W 6005 2RS?
It commercially identifies an execution with seals on both sides. The exact SKF suffix should be checked for precise technical identification.

Frequently Asked Questions from Engineers and Maintenance Technicians

Can a standard 6005 replace W 6005?
Not automatically. If stainless steel was specified because of corrosion, moisture or hygiene requirements, replacing it with a conventional bearing-steel version can materially change the suitability of the bearing.

What is the load rating of W 6005?
For the specific SKF W 6005-2RS1/VP311 execution, SKF lists a dynamic load rating of 8.71 kN and static load rating of 5.85 kN.

What is the limiting speed of W 6005-2RS1/VP311?
SKF lists 9,500 r/min for this specific sealed Food Line execution.

Is every W 6005 a food-grade bearing?
No. Food Line characteristics are linked to specific executions such as W 6005-2RS1/VP311. The complete suffix must be verified.

Why is the complete SKF designation important?
Additional suffixes identify important features such as sealing and special application execution. Two W 6005 bearings can share the same dimensions but differ in technical characteristics.