SKF 6210-2RS1 50x90x20 mm - Deep Groove Ball Bearing

SKF 6210-2RS1 50x90x20 mm - Deep Groove Ball Bearing

SKF 6210-2RS1 is a single-row deep groove ball bearing with dimensions 50x90x20 mm, fitted with contact seals on both sides. It belongs to the 62 dimension series and has a cylindrical bore, Normal radial internal clearance and a sheet steel cage. The bearing is factory grease-filled, while the 2RS1 seals help retain lubricant and protect the internal components against contamination.

Technical Specifications - SKF 6210-2RS1

Dimensions of SKF 6210-2RS1

The principal dimensions are:

50x90x20 mm

where:

d = 50 mm - bore diameter

D = 90 mm - outside diameter

B = 20 mm - bearing width

The bearing has a cylindrical bore.

Dimensions are an important part of bearing identification, but they should not be the only criterion when selecting a replacement. The 2RS1 sealing arrangement, internal clearance and operating requirements must also be considered.

What Does SKF 6210-2RS1 Mean?

The complete SKF designation is:

SKF 6210-2RS1

SKF

SKF is the bearing manufacturer.

6210

6210 is the basic designation of this single-row deep groove ball bearing.

The bearing belongs to the 62 dimension series.

The bore code 10 corresponds to:

d = 50 mm

The principal dimensions are:

50x90x20 mm

2RS1

The suffix 2RS1 identifies contact seals on both sides of the bearing.

These seals help:

retain grease inside the bearing

reduce the ingress of contaminants

protect the raceways, balls and cage during operation

For precise technical identification, the complete designation should be retained:

6210-2RS1

Is 6210 2RS the Same as SKF 6210-2RS1?

6210 2RS is a commonly used commercial description for a 6210 bearing sealed on both sides.

For the SKF product described here, the manufacturer designation is:

6210-2RS1

Therefore, SKF 6210-2RS1 is the preferred designation for the product title, technical documentation and purchasing.

The expression 6210 2RS remains useful as a natural search and commercial reference.

Normal Radial Internal Clearance CN

The standard SKF 6210-2RS1 has Normal radial internal clearance, commonly referred to as CN.

There is no C3 suffix in the designation.

This distinction is important because:

6210-2RS1

and

6210-2RS1/C3

are not automatically the same bearing configuration.

The /C3 version has radial internal clearance greater than Normal.

Selection between Normal and C3 clearance should be based on shaft and housing fits, operating temperature, speed, loading and the requirements of the specific bearing arrangement.

C3 should not automatically be considered an upgrade over Normal clearance.

Construction of SKF 6210-2RS1

SKF 6210-2RS1 is a single-row deep groove ball bearing.

Its construction includes:

inner ring

outer ring

balls

sheet steel cage

contact seals on both sides

factory-applied grease

The deep raceway geometry enables the bearing to accommodate primarily radial loads while also supporting axial loads in both directions within the operating limits of this bearing design.

2RS1 Contact Seals on Both Sides

SKF 6210-2RS1 is sealed on both sides.

The 2RS1 configuration uses contact seals.

Their principal functions are to help retain lubricant inside the bearing and protect the internal bearing components against external contamination.

Because the sealing lips operate with contact, the sealing arrangement also affects friction and permissible operating speed.

For this reason, open, shielded and contact-sealed 6210 variants should not automatically be treated as having identical operating characteristics.

Factory Grease Filling

SKF 6210-2RS1 is supplied as a grease-filled, sealed bearing.

The lubricant is retained inside the bearing by the seals on both sides.

The standard sealed configuration does not incorporate a conventional relubrication feature through the bearing rings.

The seals should not be removed and additional grease should not be introduced without a technically justified reason based on the requirements of the application.

Load Ratings of SKF 6210-2RS1

The confirmed load ratings are:

C = 37.1 kN - basic dynamic load rating

C0 = 23.2 kN - basic static load rating

Pu = 0.98 kN - fatigue load limit

These values are catalogue parameters used for bearing selection and life calculations.

The basic dynamic load rating of 37.1 kN should not be interpreted as a simple maximum permissible machine load.

Actual bearing life depends on factors including radial and axial loads, rotational speed, lubrication, contamination, temperature, fits and the required service life.

Speed of SKF 6210-2RS1

For the sealed SKF 6210-2RS1, the confirmed limiting speed is:

4,800 r/min

The contact sealing arrangement affects friction and heat generation and therefore influences permissible speed.

Speed values from an open SKF 6210 or a shielded SKF 6210-2Z should not automatically be transferred to the 6210-2RS1 version.

These are different bearing configurations.

SKF 6210-2RS1 vs SKF 6210-2Z

Both bearings have the same principal dimensions:

50x90x20 mm

However, their closure systems are different.

SKF 6210-2RS1 has contact seals on both sides.

SKF 6210-2Z has metal shields on both sides.

Contact seals and metal shields differ in their sealing performance, friction characteristics and influence on permissible operating speed.

Therefore, 6210-2RS1 and 6210-2Z should not automatically be considered technically identical simply because their dimensions are the same.

SKF 6210-2RS1 vs SKF 6210-2RS1/C3

Both versions have the same principal dimensions:

50x90x20 mm

and both use 2RS1 contact seals.

The important difference is radial internal clearance.

6210-2RS1 has Normal radial internal clearance.

6210-2RS1/C3 has radial internal clearance greater than Normal.

The correct clearance depends on operating conditions, fits, temperature, speed and the requirements of the bearing arrangement.

The /C3 version should not automatically replace the Normal-clearance version.

SKF 6210-2RS1 vs Open SKF 6210

An open SKF 6210 does not have the integrated contact seals used in the 6210-2RS1 version.

This difference affects:

lubrication arrangement

protection against contamination

friction

speed capability

maintenance requirements

Therefore, the common dimensions of 50x90x20 mm are not sufficient to consider the two versions technically identical.

Alternative Designations and Search References

Natural reference variants include:

SKF 6210-2RS1

6210-2RS1 SKF

SKF6210-2RS1

SKF 6210 2RS1

6210 2RS1 SKF

Common commercial search references also include:

SKF 6210 2RS

6210 2RS SKF

SKF 6210 2RS 50x90x20

6210 2RS 50x90x20

The generic term 2RS is widely used in the bearing market to describe a bearing sealed on both sides.

For precise identification of this SKF product, use the complete manufacturer designation:

SKF 6210-2RS1

Selection and Interchangeability

Before selecting SKF 6210-2RS1 or an alternative bearing, verify:

• full designation SKF 6210-2RS1
• single-row deep groove ball bearing design
• bore diameter d = 50 mm
• outside diameter D = 90 mm
• width B = 20 mm
• 2RS1 contact seals on both sides
• Normal radial internal clearance
• cage design
• required radial and axial loads
• rotational speed
• operating temperature
• shaft fit
• housing fit
• lubrication requirements
• contamination level
• requirements of the specific application

A bearing from another manufacturer with dimensions 50x90x20 mm is not automatically a complete technical equivalent of SKF 6210-2RS1.

The complete design and operating parameters should be compared.

Typical Applications

Single-row deep groove ball bearings are widely used in rotating bearing arrangements requiring radial load capacity together with the ability to accommodate axial loads in both directions.

The 2RS1 contact-sealed configuration is particularly useful where grease retention and protection of the internal bearing components against contamination are required.

However, the exact SKF 6210-2RS1 reference should not be assigned to a specific electric motor, gearbox, machine, vehicle or other equipment unless that application is confirmed by OEM or equipment manufacturer documentation.

Installation and Operation

SKF 6210-2RS1 should be installed under clean conditions.

Before installation, inspect the shaft, housing and bearing seats.

Mounting force should be applied to the ring with the interference fit.

When mounting the bearing onto a shaft, force should not be transmitted through the balls to the outer ring.

When pressing the bearing into a housing, force should not be transmitted through the balls to the inner ring.

Do not strike the bearing directly.

Protect the 2RS1 seals against mechanical damage during handling and installation.

The bearing should be stored in a clean and dry environment, preferably in its original packaging until installation.

FAQ - SKF 6210-2RS1

What are the dimensions of SKF 6210-2RS1?

SKF 6210-2RS1 has dimensions of 50x90x20 mm: d = 50 mm, D = 90 mm and B = 20 mm.

What does 2RS1 mean in SKF 6210-2RS1?

2RS1 identifies contact seals on both sides of the bearing. They help retain grease and protect the internal bearing components against contamination.

Are SKF 6210 2RS and SKF 6210-2RS1 the same designation?

6210 2RS is a commonly used generic commercial description. For the product described here, the precise SKF manufacturer designation is 6210-2RS1.

What internal clearance does SKF 6210-2RS1 have?

The standard SKF 6210-2RS1 without an additional clearance suffix has Normal radial internal clearance.

Are SKF 6210-2RS1 and 6210-2RS1/C3 the same bearing?

No. They have the same dimensions and sealing arrangement, but the /C3 version has radial internal clearance greater than Normal.

Is SKF 6210-2RS1 factory lubricated?

Yes. It is a sealed, grease-filled bearing supplied with lubricant inside the bearing.

What are the load ratings of SKF 6210-2RS1?

The basic dynamic load rating C is 37.1 kN, the basic static load rating C0 is 23.2 kN, and the fatigue load limit Pu is 0.98 kN.

Can SKF 6210-2Z replace SKF 6210-2RS1?

Not automatically. 2Z identifies metal shields, while 2RS1 identifies contact seals. The two designs differ in sealing performance, friction and speed characteristics, even though both have dimensions of 50x90x20 mm.

SKF 6210-2RS1 - Key Information

SKF 6210-2RS1 is a single-row deep groove ball bearing measuring 50x90x20 mm with contact seals on both sides. The standard version has Normal radial internal clearance, a sheet steel cage and factory grease filling. SKF specifies C = 37.1 kN, C0 = 23.2 kN and a limiting speed of 4,800 r/min.

Available from simmering.pl, stock in Poland with worldwide shipping.

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