6208 2RS SKF 40x80x18 mm - Deep Groove Ball Bearing

6208 2RS SKF 40x80x18 mm - Single Row Deep Groove Ball Bearing

6208 2RS SKF 40x80x18 mm is a single row deep groove ball bearing manufactured by SKF, a Swedish bearing manufacturer. It belongs to the 62 bearing series and has a bore diameter of 40 mm, an outside diameter of 80 mm and a width of 18 mm. The commercial designation 2RS indicates rubber seals on both sides. The bearing accommodates radial loads and axial loads in both directions. SKF uses more specific sealing designations, including 2RS1 and 2RSH.

Technical Specifications - 6208 2RS SKF

Important designation note: 6208 2RS is a commercial designation rather than a complete, uniquely defined SKF manufacturer designation. SKF variants such as 6208-2RS1 and 6208-2RSH have the same principal dimensions but differ in sealing design. The exact variant should be confirmed from the bearing marking or original packaging.

SKF 6208-2RS1 Catalog Parameters

The following specifications apply to the SKF 6208-2RS1 configuration. They should only be assigned to the offered product after confirming this exact manufacturer designation.

These are catalog values associated with the SKF 6208-2RS1 configuration. They should not automatically be transferred to other 6208 sealing or clearance variants.

What Does 6208 2RS SKF Mean?

The designation identifies the bearing type, dimensional series, size, sealing arrangement and manufacturer.

6208 - Bearing Type and Dimensional Series

The designation 6208 identifies a single row deep groove ball bearing with dimensions of 40x80x18 mm.

The first digit, 6, identifies the deep groove ball bearing design.

The 62 series specifies the dimensional family, while the final two digits, 08, indicate a nominal bore diameter of 40 mm.

The bearing incorporates deep raceway grooves in the inner and outer rings, enabling it to accommodate radial loads and axial loads in both directions.

2RS - Rubber Seals on Both Sides

The commercial designation 2RS indicates two elastomeric seals, one on each side of the bearing.

Their functions include:

• Reducing the entry of contaminants into the bearing.

• Helping retain lubricant inside the bearing.

• Protecting rolling elements and raceways.

• Supporting operation in appropriately selected industrial environments.

SKF uses more specific suffixes to identify the exact seal construction.

2RS1 indicates two contact seals of the RS1 design.

2RSH indicates two contact seals of the RSH design.

Although these variants have the same principal dimensions, their sealing characteristics should not automatically be considered identical.

SKF - Manufacturer

SKF is a Swedish manufacturer of rolling bearings and related industrial components.

SKF deep groove ball bearings are used in rotating machinery, industrial equipment and mechanical power transmission systems.

The complete manufacturer designation is important when identifying a replacement bearing, particularly where sealing performance, internal clearance or operating speed are critical.

Construction and Operating Principle

The 6208 2RS SKF bearing consists of:

• Inner ring with a deep raceway groove.

• Outer ring with a deep raceway groove.

• One row of balls.

• Cage separating and guiding the rolling elements.

• Two integrated elastomeric seals.

The bearing has a non-separable construction.

The deep groove raceway geometry enables the rolling elements to transmit radial loads and axial loads between the inner and outer rings.

Radial and Axial Loads

Deep groove ball bearings are primarily designed to accommodate radial loads.

They can also accommodate axial loads acting in both directions.

The permissible axial load depends on the bearing geometry, internal clearance, operating speed and complete bearing arrangement.

The bearing should not be considered a direct replacement for a bearing specifically designed to accommodate high axial loads.

Contact Sealing Arrangement

The seals help protect the bearing interior against contamination and reduce lubricant leakage.

Compared with metal shields, contact seals generally provide more effective protection against the entry of contaminants.

However, contact seals introduce additional friction.

This friction can influence operating temperature and permissible rotational speed.

The exact performance depends on the SKF sealing variant.

Non-Separable Construction

The bearing rings, balls and cage form a non-separable assembly.

The bearing is intended to be installed as a complete unit.

The integrated seals are part of the factory bearing construction and should not be removed during normal installation.

Alternative Designations and Reference Numbers

The bearing may be encountered under the following commercial notation variants:

• 6208 2RS SKF

• SKF 6208 2RS

• 6208-2RS SKF

• SKF 6208-2RS

Specific SKF manufacturer designations include:

• 6208-2RS1

• 6208-2RSH

These designations identify different sealing configurations and should not be treated merely as alternative spellings of an identical product.

No unverified OEM part numbers or cross-reference numbers are assigned.

6208 2RS SKF vs Other 6208 Variants

Bearings belonging to the 6208 family share the principal dimensions of 40x80x18 mm but may differ in sealing arrangement, internal clearance and operating characteristics.

6208-2RS1 vs 6208-2RSH

Both bearings have dimensions of 40x80x18 mm and feature contact seals on both sides.

However, they use different sealing designs defined by SKF.

Before replacing one with the other, the full manufacturer specifications should be compared, especially where contamination protection, operating speed or sealing friction are important.

6208 2RS vs 6208 2Z

The 2RS commercial variant uses elastomeric seals, while the 2Z version incorporates metal shields.

Metal shields generally produce less friction than contact seals but provide a different level of protection against contamination.

The correct variant depends on the operating environment, lubrication requirements and permissible speed.

6208 2RS vs 6208 C3

The C3 suffix specifies radial internal clearance greater than Normal.

It does not identify a sealing arrangement.

A bearing designated 6208 2RS without C3 should not automatically be considered a bearing with increased radial internal clearance.

Selection and Interchangeability

Before purchasing or replacing a 6208 2RS SKF bearing, verify:

1. Complete manufacturer designation.

2. Bore diameter of 40 mm.

3. Outside diameter of 80 mm.

4. Width of 18 mm.

5. Exact sealing arrangement.

6. Required radial internal clearance.

7. Shaft and housing fits.

8. Radial and axial loads.

9. Operating speed.

10. Operating temperature.

11. Lubrication conditions.

12. Environmental contamination.

13. Cage and precision requirements, where specified.

14. Original equipment manufacturer requirements.

A bearing from another manufacturer with dimensions of 40x80x18 mm may be considered as a replacement only after confirming the relevant technical characteristics.

Identical dimensions do not automatically guarantee complete interchangeability.

Sealing arrangement, internal clearance, load ratings and operating requirements must also be compatible.

Typical Applications

Single row deep groove ball bearings of the 6208 series with seals on both sides are used in appropriately designed rotating machinery.

Typical application categories for this bearing family include:

• Electric motors.

• Industrial pumps.

• Fans and ventilation equipment.

• Gearboxes and power transmission assemblies.

• Industrial production machinery.

• Rotating shaft bearing arrangements.

These are typical applications of the 6208 bearing family, not confirmed OEM applications of the exact SKF 6208 2RS commercial designation.

Suitability for a particular machine must be verified against its technical requirements.

Installation, Lubrication and Operation

Installation

The bearing should be installed under clean conditions using appropriate mounting equipment.

Before installation, inspect the shaft, housing and bearing seating surfaces.

Verify the required dimensional tolerances and fits.

Mounting force must be applied to the bearing ring being installed with an interference fit.

Mounting force must not be transmitted through the balls and raceways.

Incorrect mounting procedures can damage the rolling contact surfaces and reduce bearing service life.

The seals must be protected against deformation, cuts and contact with sharp tools.

Lubrication

SKF 6208-2RS1 and 6208-2RSH sealed bearing variants are factory grease-filled.

The exact lubricant specification depends on the manufacturer configuration.

The seals should not be removed or additional grease introduced without a technically justified maintenance procedure.

Operating Conditions

During operation, bearing temperature, vibration and noise should be monitored where required by the application.

The permissible operating speed depends on the sealing design, load, lubrication and thermal conditions.

The selected radial internal clearance must also be compatible with shaft and housing fits and operating temperature.

Storage

Store the bearing in its original protective packaging in a clean, dry environment.

Avoid moisture, contamination, mechanical impact and unnecessary handling before installation.

FAQ - 6208 2RS SKF 40x80x18 mm

1. What are the dimensions of 6208 2RS SKF?

The bearing has a bore diameter of 40 mm, an outside diameter of 80 mm and a width of 18 mm.

2. What does 2RS mean in 6208 2RS SKF?

2RS is a commercial designation indicating rubber seals on both sides. SKF uses more specific sealing designations, including 2RS1 and 2RSH.

3. Are SKF 6208-2RS1 and 6208-2RSH identical?

Not necessarily. They have the same principal dimensions but different SKF sealing designs.

4. Is SKF 6208 2RS factory lubricated?

Confirmed SKF sealed variants, including 6208-2RS1 and 6208-2RSH, are factory grease-filled. The exact lubricant specification depends on the manufacturer configuration.

5. Does SKF 6208 2RS have C3 internal clearance?

Not necessarily. The commercial 2RS designation does not specify C3 clearance. Increased radial internal clearance must be confirmed from the complete manufacturer designation.

6. Are SKF 6208 2RS and 6208 2Z interchangeable?

Not automatically. They differ in sealing arrangement, friction characteristics and contamination protection.

7. What is the load rating of SKF 6208-2RS1?

The catalog basic dynamic load rating is 32.5 kN, and the basic static load rating is 19 kN. These values are calculation parameters, not universal maximum permissible operating loads.

8. Can a 6208 bearing from another manufacturer replace SKF 6208 2RS?

Potentially, but only after confirming dimensions, sealing arrangement, radial internal clearance, load ratings and application requirements.

6208 2RS SKF 40x80x18 mm - Key Technical Information

6208 2RS SKF is a single row deep groove ball bearing manufactured by SKF, with dimensions of 40x80x18 mm. It features a non-separable construction and rubber seals on both sides. SKF sealing variants include 6208-2RS1 and 6208-2RSH, which differ in seal design. The bearing accommodates radial loads and axial loads in both directions.

The 6208 2RS SKF bearing is offered by simmering.pl, a specialist supplier of rolling bearings and industrial sealing components.

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