SS 6208 2RS CT 40x80x18 mm - Stainless Steel Deep Groove Ball Bearing

SS 6208 2RS CT 40x80x18 mm - Stainless Steel Deep Groove Ball Bearing

SS 6208 2RS CT 40x80x18 mm is a single-row deep groove ball bearing in a stainless steel version, sealed on both sides. It has a 40 mm bore diameter, 80 mm outside diameter and 18 mm width. The designation 6208 defines the basic bearing size, SS indicates a stainless steel version, while 2RS identifies seals on both sides of the bearing.

Technical data

Dynamic load rating C, static load rating C0, limiting speed, mass, operating temperature, grease specification and the exact meaning of CT are intentionally not stated without confirmed documentation for the specific manufacturer and product version.

What does SS 6208 2RS CT mean?

The complete designation contains several elements important for correct product identification.

SS - commonly used to identify a stainless steel bearing version.

6208 - identifies the size of a single-row deep groove ball bearing with principal dimensions of 40x80x18 mm.

2RS - seals on both sides of the bearing. This design helps protect the bearing interior against contamination and helps retain lubricant inside the bearing.

CT - an additional designation identifying a specific product version. Its exact meaning may depend on the manufacturer's nomenclature. Without confirmed manufacturer documentation, CT should not be interpreted as a specific cage, clearance, lubricant, accuracy class or other technical feature.

SS 6208 2RS construction

SS 6208 2RS CT is a single-row deep groove ball bearing.

Its basic construction includes:

• inner ring

• outer ring

• balls

• cage

• two seals

The deep raceway grooves allow the bearing to accommodate primarily radial loads. Deep groove ball bearing construction can also accommodate axial loads in both directions within the limits determined by the bearing design and operating conditions.

SS 6208 2RS CT dimensions

The principal dimensions are:

d - 40 mm - bore diameter

D - 80 mm - outside diameter

B - 18 mm - bearing width

The complete dimensional format is 40x80x18 mm.

These dimensions correspond to the 6208 size. However, dimensional compatibility alone does not confirm complete interchangeability with every 6208 bearing.

What does stainless steel mean in SS 6208?

The SS designation indicates a stainless steel version intended to provide increased corrosion resistance compared with a conventional bearing made from standard bearing steel.

This does not mean that the bearing is completely corrosion-proof under all operating conditions.

Actual corrosion resistance depends on factors including:

• specific stainless steel grade

• operating environment

• humidity

• temperature

• exposure to salts

• exposure to chemicals

• cleaning procedures

• duration of exposure

The exact stainless steel grade should not be assumed without documentation from the specific manufacturer.

What does 2RS mean?

2RS identifies a bearing equipped with seals on both sides.

The seals create a barrier between the bearing interior and the surrounding environment. Their function is to limit the ingress of contaminants and help retain lubricant inside the bearing.

Compared with an open 6208 bearing, the 2RS version provides additional protection of the rolling elements and raceways.

The presence of seals also influences friction and operating characteristics and must therefore be considered when selecting a replacement.

What does CT mean?

CT is part of the complete SS 6208 2RS CT designation and should not be ignored during product identification.

However, CT does not have one universal meaning that can be applied independently of the bearing manufacturer.

Without confirmed manufacturer nomenclature, CT should not be assumed to define:

• cage material

• internal clearance

• lubricant

• accuracy class

• seal material

• temperature range

• special heat treatment

When selecting an exact replacement, the CT designation should be retained or its meaning confirmed using documentation from the original manufacturer.

Alternative designations and search references

Natural product reference formats include:

• SS 6208 2RS CT

• SS6208 2RS CT

• SS6208-2RS CT

• SS 6208-2RS CT

• 6208 2RS SS

• SS 6208 2RS

• SS6208-2RS

• SS 6208 2RS 40x80x18

• stainless steel 6208 2RS

• stainless steel 6208 bearing

• stainless bearing 6208 2RS 40x80x18

For exact product identification, the complete designation SS 6208 2RS CT should be retained.

SS 6208 2RS CT vs standard 6208 2RS

Both bearings may have the same principal dimensions of 40x80x18 mm and seals on both sides.

The important difference is the material version. SS identifies a stainless steel version, while a standard 6208 2RS bearing may be manufactured from conventional bearing steel.

Without comparing manufacturer documentation, identical values should not be assumed for:

• dynamic load rating

• static load rating

• limiting speed

• cage material

• seal material

• operating temperature

• lubricant

• chemical resistance

Identical dimensions and a similar designation do not automatically mean identical operating characteristics.

SS 6208 2RS CT vs open 6208

An open 6208 bearing does not have the double-sided 2RS sealing system.

SS 6208 2RS CT has a closed design with seals on both sides, providing additional protection of the bearing interior.

Although the principal dimensions can remain 40x80x18 mm, the open and sealed versions differ in construction and operating characteristics.

How to select SS 6208 2RS CT

Before purchasing or replacing this bearing, verify:

• complete designation SS 6208 2RS CT

• manufacturer, if it can be identified

• dimensions 40x80x18 mm

• required stainless steel version

• required 2RS sealing on both sides

• meaning of the CT suffix

• required internal clearance

• radial and axial loads

• rotational speed

• operating temperature

• environmental conditions

• required corrosion resistance

• lubrication conditions

• shaft and housing fits

A replacement should not be selected solely on the basis of the 40x80x18 mm dimensions.

Applications

Stainless steel deep groove ball bearings with seals on both sides are used in bearing arrangements where corrosion resistance and protection of the bearing interior against contamination are required in addition to the normal functions of a rolling bearing.

The suitability of SS 6208 2RS CT for a specific application depends on its exact materials, seals, lubricant and manufacturer specifications.

The designation alone does not confirm suitability for:

• direct food contact

• food processing certification

• marine environments

• aggressive chemicals

• washdown applications

• high-temperature operation

• other specialised environments

Such applications require verification against the technical documentation and certifications of the specific manufacturer.

Installation and operation

Keep the bearing, shaft, housing and mounting tools clean during installation.

Mounting force should be applied directly to the ring being installed with an interference fit. The mounting force should not be transmitted through the balls and raceways.

Care should also be taken to avoid damaging the 2RS seals during installation.

Before using the bearing in wet or chemically aggressive environments, the corrosion resistance of the complete bearing assembly should be verified, including the rings, balls, cage, seals and lubricant.

FAQ

What are the dimensions of SS 6208 2RS CT?

The bearing has a 40 mm bore diameter, 80 mm outside diameter and 18 mm width. Its dimensions are written as 40x80x18 mm.

What does SS mean?

SS indicates a stainless steel bearing version. The exact stainless steel grade should be confirmed using the manufacturer's technical documentation.

What does 2RS mean?

2RS means that the bearing is equipped with seals on both sides.

What does CT mean?

CT is an additional product designation. Its exact technical meaning should be verified according to the nomenclature of the specific manufacturer.

Is SS 6208 2RS CT corrosion resistant?

The stainless steel version provides increased corrosion resistance compared with conventional bearing steel. Actual resistance depends on the exact stainless steel grade and operating environment.

Can SS 6208 2RS CT replace a standard 6208 2RS bearing?

Not automatically. The dimensions may be identical, but the material, load ratings, corrosion resistance, seals, lubricant and other technical characteristics may differ.

Is SS 6208 2RS CT suitable for food contact?

Stainless steel construction alone does not confirm suitability for direct food contact. The bearing materials, seals, lubricant and relevant manufacturer certifications must be verified.

Does SS 6208 2RS CT require additional lubrication?

Lubrication requirements should not be determined from the 2RS designation alone. The factory lubricant, lubrication life and maintenance requirements should be verified according to the specific manufacturer's documentation.

SS 6208 2RS CT 40x80x18 mm - key information

SS 6208 2RS CT is a single-row stainless steel deep groove ball bearing with dimensions of 40x80x18 mm. SS indicates a stainless steel version, while 2RS identifies seals on both sides. CT remains part of the complete product designation and should not be assigned an unverified technical meaning without documentation from the specific manufacturer.

SS 6208 2RS CT is available from the specialist industrial supplier simmering.pl, with stock in Poland and worldwide shipping. Assistance with bearing identification and selection is also available.