6207 2RS C3 NSK 35x72x17 - Deep Groove Ball Bearing

6207 2RS C3 NSK 35x72x17 - Deep Groove Ball Bearing

6207 2RS C3 NSK is a single-row deep groove ball bearing with dimensions 35x72x17 mm, increased C3 radial internal clearance and seals on both sides. The 2RS designation is commonly used in the bearing market for a double-sealed bearing; in NSK's official designation system, double contact rubber seals are identified by the suffix DDU.

6207 2RS C3 NSK - Technical Data

Dimensions

The principal dimensions are:

35x72x17 mm

• d: 35 mm - bore diameter

• D: 72 mm - outside diameter

• B: 17 mm - bearing width

• r min.: 1.1 mm - minimum chamfer dimension

These dimensions correspond to the NSK 6207 deep groove ball bearing series.

What Does 6207 2RS C3 Mean?

6207 identifies the basic deep groove ball bearing series and size.

For designation 6207:

• bore diameter: 35 mm

• outside diameter: 72 mm

• width: 17 mm

2RS is a widely used commercial designation for a bearing sealed on both sides.

C3 specifies radial internal clearance greater than normal.

The complete commercial identification is therefore:

6207 2RS C3 NSK - 35x72x17 mm

Important NSK Seal Designation

NSK uses its own suffix system for sealed deep groove ball bearings.

For NSK bearings:

• V - single non-contact seal

• VV - double non-contact seals

• DW - single light-contact seal

• DDW - double light-contact seals

• DU - single contact seal

• DDU - double contact seals

• Z - single metal shield

• ZZ - double metal shields

Therefore, 2RS is useful as a generic commercial search term, but the exact NSK suffix printed on the bearing or packaging should be checked when identifying a replacement.

For a conventional NSK bearing with contact rubber seals on both sides, the NSK designation is typically:

DDU

C3 Internal Clearance

The C3 suffix indicates radial internal clearance greater than normal.

C3 does not mean higher bearing quality or a higher precision class. It specifically identifies the internal clearance range.

Increased internal clearance can be required where the operating clearance is reduced by factors such as:

• interference fits

• thermal expansion

• temperature differences between the inner and outer rings

• specific operating conditions

A C3 bearing should therefore not automatically be replaced by a bearing with normal internal clearance.

Deep Groove Ball Bearing Design

The NSK 6207 belongs to the single-row deep groove ball bearing family.

Deep, continuous raceway grooves provide close conformity with the balls, allowing this bearing design to support radial loads while also accommodating axial loads in both directions.

This combination of radial and axial load capability makes deep groove ball bearings one of the most widely used rolling bearing designs in industrial machinery.

Load Ratings

For NSK 6207, the manufacturer specifies:

Basic dynamic load rating Cr: 28.2 kN

Basic static load rating C0r: 15.3 kN

The dynamic load rating is used in bearing life calculations under rotating load conditions.

The static load rating is relevant when evaluating bearing behaviour under stationary or very slowly rotating load conditions.

Actual bearing selection must also consider speed, lubrication, temperature, fits, internal clearance and the complete operating conditions.

Double-Sealed Design

A double-sealed 6207 bearing has sealing elements on both sides of the bearing.

The seals help:

• retain lubricant inside the bearing

• reduce the ingress of contamination

• protect the rolling elements and raceways

• provide a ready-to-install enclosed bearing arrangement

The exact sealing design should be identified from the full NSK suffix.

6207 C3 vs 6207

Both bearings have the same principal dimensions:

35x72x17 mm

The difference is the radial internal clearance.

6207 without a clearance suffix normally refers to normal internal clearance.

6207 C3 has radial internal clearance greater than normal.

The correct clearance should be selected according to the requirements of the bearing arrangement.

6207 2RS C3 vs 6207 2Z C3

Both versions can have the same dimensions of 35x72x17 mm and C3 internal clearance, but the closure design is different.

A 2RS-type bearing uses seals on both sides.

A 2Z-type bearing uses metal shields on both sides.

In NSK terminology, the corresponding suffixes depend on the exact closure design, with DDU used for double contact seals and ZZ for double metal shields.

Sealed and shielded versions should not automatically be considered interchangeable because their friction, sealing performance and operating characteristics differ.

Radial and Axial Loads

The 6207 deep groove ball bearing is primarily designed for radial loading.

Its raceway geometry also allows it to accommodate axial loads in both directions.

This makes the 6207 suitable for bearing arrangements where radial loads occur together with moderate axial forces.

The permissible load in a specific application depends on the complete operating conditions.

Typical Applications

6207-series deep groove ball bearings are used in a wide range of industrial and mechanical equipment, including:

• electric motors

• industrial machinery

• pumps

• fans

• conveyors

• agricultural machinery

• drive systems

• gearboxes

• rotating equipment

The C3 clearance and sealing arrangement must be selected according to the requirements of the specific bearing position.

Selection and Interchangeability

Before replacing a 6207 2RS C3 NSK bearing, verify:

1. Bearing series 6207.

2. Dimensions 35x72x17 mm.

3. C3 radial internal clearance.

4. Sealing arrangement on both sides.

5. Exact NSK suffix.

6. Required load capacity.

7. Shaft and housing fits.

8. Operating temperature.

9. Rotational speed.

10. Lubrication and contamination conditions.

Matching dimensions alone do not guarantee complete interchangeability.

Installation

Before installation:

• keep the bearing clean

• clean the shaft and housing seats

• inspect the mounting surfaces

• verify shaft and housing tolerances

• use appropriate bearing mounting tools

• apply mounting force only through the ring being fitted

• never transmit installation force through the balls

• protect the seals against mechanical damage

• verify correct bearing seating after installation

Correct mounting is essential for reliable operation and bearing service life.

FAQ

What are the dimensions of 6207 2RS C3 NSK?

The bearing dimensions are 35x72x17 mm: 35 mm bore diameter, 72 mm outside diameter and 17 mm width.

What type of bearing is NSK 6207?

NSK 6207 is a single-row deep groove ball bearing.

What does C3 mean on an NSK bearing?

C3 means that the radial internal clearance is greater than normal.

Does C3 mean higher bearing quality?

No. C3 identifies the radial internal clearance class. It is not a quality or precision grade.

What does 2RS mean?

2RS is a widely used generic designation for seals on both sides of a bearing. NSK uses its own suffix system for specific seal designs.

What is the NSK equivalent designation for double contact seals?

NSK uses DDU for contact rubber seals on both sides.

What is the dynamic load rating of NSK 6207?

NSK specifies a basic dynamic load rating of 28.2 kN for the 6207 bearing.

What is the static load rating of NSK 6207?

The basic static load rating is 15.3 kN.

Can 6207 C3 replace a standard 6207?

Not automatically. C3 has greater radial internal clearance than normal, so the required clearance must be confirmed for the application.

Can 6207 2RS C3 replace 6207 2Z C3?

Not automatically. Although the dimensions and internal clearance may be identical, the sealing or shielding arrangement is different.

6207 2RS C3 NSK - Quick Technical Answer

6207 2RS C3 NSK is a single-row deep groove ball bearing with dimensions 35x72x17 mm, seals on both sides and C3 radial internal clearance greater than normal. NSK specifies basic dynamic and static load ratings of 28.2 kN and 15.3 kN respectively for the 6207 series. NSK uses DDU for double contact rubber seals.

6207 2RS C3 NSK at simmering.pl

6207 2RS C3 NSK 35x72x17 is available from simmering.pl, a specialist B2B supplier of bearings, radial shaft seals, O-rings and industrial sealing solutions.

Stock and technical service are located in Lublin, Poland.

For accurate bearing identification, specify the complete designation printed on the NSK bearing or packaging.