6207-2RS-NR TIMKEN 35x72x17 mm Deep Groove Ball Bearing with Snap Ring

6207-2RS-NR TIMKEN 35x72x17 mm Deep Groove Ball Bearing with Snap Ring

6207-2RS-NR TIMKEN 35x72x17 mm is a single-row deep groove ball bearing with contact seals on both sides and an outer-ring snap-ring groove with snap ring. It has a 35 mm bore diameter, 72 mm outside diameter and 17 mm width. The NR design provides an additional means of axial location of the bearing in a suitably designed housing.

Technical data - TIMKEN 6207-2RS-NR

The principal dimensions, contact seals, snap-ring arrangement, load ratings and speed data correspond to TIMKEN technical data for 6207-2RS-NR.

What does 6207-2RS-NR mean?

The complete designation identifies the bearing series and its important construction features:

• 6207 - deep groove ball bearing from the 62 series
• 2RS - contact seals on both sides
• NR - snap-ring groove in the outer ring with snap ring
• TIMKEN - manufacturer

The NR suffix is particularly important when selecting a replacement.

A standard 6207-2RS without the NR feature should not automatically be considered a complete functional replacement for 6207-2RS-NR.

Dimensions of TIMKEN 6207-2RS-NR

The principal bearing dimensions are:

35x72x17 mm

where:

• d = 35 mm - bore diameter
• D = 72 mm - outside diameter
• B = 17 mm - bearing width

For the NR design, TIMKEN additionally specifies:

• D2 max = 78.6 mm - maximum snap-ring outside diameter
• f max = 1.7 mm - maximum snap-ring width

These additional dimensions are important when checking available space and axial location in the housing.

What does NR mean on a bearing?

NR identifies a bearing with a groove machined into the outer ring and a snap ring installed in that groove.

The snap ring can provide axial location of the bearing relative to an appropriately designed housing.

This is an important construction difference compared with a standard 6207-2RS bearing.

Depending on the bearing arrangement, the NR design can:

• provide axial location of the outer ring
• simplify certain housing designs
• limit axial movement of the outer ring
• reduce the need for additional axial locating components

The exact function of the snap ring depends on the design of the machine and housing.

N vs NR - important difference

N and NR are not identical designations.

N

Identifies a snap-ring groove in the outer ring.

NR

Identifies a snap-ring groove in the outer ring with the snap ring supplied as part of the bearing execution.

Therefore, when the machine requires the complete NR design, the presence of the appropriate snap ring should be verified.

What does 2RS mean?

For 6207-2RS-NR, TIMKEN specifies:

Contact Seals With Snap Ring

The 2RS designation identifies contact seals on both sides of the bearing.

The seals help:

• reduce the ingress of dust and contaminants
• retain lubricant inside the bearing
• protect balls and raceways
• improve protection in contaminated operating environments

Because contact seals touch the mating surface, they also influence friction and permissible operating speed.

Deep Groove Ball Bearing construction

TIMKEN classifies 6207-2RS-NR as a standard DGBB, or Deep Groove Ball Bearing.

Deep raceway grooves enable this bearing type to accommodate primarily radial loads together with certain axial loads in both directions.

Typical characteristics of deep groove ball bearings include:

• compact construction
• relatively low friction
• suitability for relatively high rotational speeds
• radial load capability
• ability to accommodate certain axial loads
• broad industrial applicability

Snap ring and axial location

The snap ring is one of the most important features distinguishing 6207-2RS-NR from a standard 6207 bearing.

The groove is machined into the bearing outer ring, and the snap ring is fitted into this groove.

When used with an appropriately designed housing shoulder or recess, it can provide a simple method of axial positioning.

TIMKEN specifies:

Maximum snap-ring diameter D2: 78.6 mm

Maximum snap-ring width f: 1.7 mm

Because the snap ring extends beyond the nominal 72 mm bearing outside diameter, sufficient installation space must be available around the bearing.

Load ratings of TIMKEN 6207-2RS-NR

TIMKEN specifies:

Dynamic radial load rating C1: 25.7 kN

Static radial load rating C0: 15.3 kN

These values are engineering ratings used for bearing selection and life calculations.

They should not be interpreted as universal maximum operating loads for every machine.

Correct bearing selection should consider:

• radial load
• axial load
• load direction
• operating speed
• required bearing life
• shaft and housing fits
• lubrication
• operating temperature
• contamination
• mounting conditions

Speed ratings

TIMKEN specifies:

• limiting speed with oil lubrication: 14000 rpm
• limiting speed with grease lubrication: 6300 rpm

For a sealed bearing operating with grease, the grease-related value is particularly relevant.

Catalogue speed values should not automatically be treated as permissible continuous operating speeds for every installation.

Actual speed capability depends on factors including load, temperature, lubrication, seal friction, fits and heat dissipation.

6207-2RS-NR vs 6207-2RS

Both bearings have the same principal dimensions:

35x72x17 mm

and both use contact seals on both sides.

The key difference is the outer-ring design.

6207-2RS

Standard sealed bearing without the NR snap-ring arrangement.

6207-2RS-NR

Bearing with an outer-ring snap-ring groove and snap ring.

If the machine uses the snap ring for axial location, a standard 6207-2RS should not automatically be considered a direct replacement.

6207-2RS-NR vs 6207-2RS-NR-C3

A C3 version can also be encountered.

Both versions can share:

• dimensions 35x72x17 mm
• 2RS contact seals
• snap-ring groove
• snap ring

The C3 suffix, however, identifies increased internal clearance.

If C3 is not present in the designation 6207-2RS-NR, increased C3 clearance should not be assumed.

The two versions should therefore not automatically be treated as interchangeable.

6207-2RS-NR vs 6207-2RZ-NR

The primary difference between 2RS and 2RZ executions concerns the sealing arrangement.

2RS

Contact seals.

2RZ

Non-contact seals.

Contact and non-contact sealing designs differ in their balance between contamination protection, friction and speed capability.

The appropriate version should therefore be selected according to the operating conditions rather than dimensions alone.

Internal clearance

The designation 6207-2RS-NR does not contain an additional clearance suffix such as C3 or C4.

A different internal clearance class should not be assigned to the bearing unless it is explicitly specified in the complete designation or verified manufacturer documentation for the supplied product.

This is particularly important when comparing:

• 6207-2RS-NR
• 6207-2RS-NR-C3
• 6207-2RS-NR-C4

Identical dimensions do not make these variants technically identical.

Alternative designations and search references

Natural designation and search variants include:

• TIMKEN 6207-2RS-NR
• 6207-2RS-NR TIMKEN
• 6207 2RS NR TIMKEN
• TIMKEN 6207 2RS NR
• 6207-2RS/NR
• 6207 2RS/NR
• 62072RSNR
• 6207 NR TIMKEN
• 6207 2RS snap ring
• 6207-2RS-NR bearing
• TIMKEN 6207 NR bearing
• 6207 bearing with snap ring
• 6207 sealed bearing with snap ring
• 6207 bearing 35x72x17
• 6207 NR bearing 35x72x17
• deep groove ball bearing 35x72x17
• sealed bearing 35x72x17 with snap ring

These are natural designation and search variants. They do not establish automatic interchangeability with bearings from other manufacturers.

How to select a replacement for 6207-2RS-NR

Before selecting an equivalent bearing, verify:

• 35 mm bore diameter
• 72 mm outside diameter
• 17 mm width
• single-row deep groove ball bearing construction
• seals on both sides
• contact seal design
• snap-ring groove in the outer ring
• snap ring
• snap-ring dimensions
• required internal clearance
• dynamic load rating
• static load rating
• required operating speed
• shaft fit
• housing fit
• operating temperature
• lubrication conditions
• machine manufacturer's requirements

Particular attention should be paid to NR.

A standard 6207-2RS bearing with identical principal dimensions does not provide the same outer-ring axial locating feature.

Typical applications

Deep groove ball bearings with snap rings are used in bearing arrangements where convenient axial location of the outer ring is required.

Typical application areas for this bearing category include:

• electric motors
• industrial pumps
• fans
• gearboxes
• industrial machinery
• production equipment
• conveyors
• drive systems
• material handling equipment
• agricultural machinery
• maintenance operations
• industrial service

These are typical applications of this bearing category. They do not confirm that TIMKEN 6207-2RS-NR is specified for a particular machine, vehicle or OEM application.

Installation of TIMKEN 6207-2RS-NR

Before installation, inspect:

• shaft condition
• housing condition
• mounting surfaces
• snap-ring groove
• snap ring
• required fits
• method of axial location

Good installation practice includes:

• maintaining high cleanliness
• using appropriate mounting tools
• avoiding mounting forces transmitted through the balls
• protecting the seals from damage
• correctly seating the snap ring
• verifying snap-ring position after installation
• checking that the housing provides sufficient space for the snap ring

When a bearing ring is installed with an interference fit, mounting force should be applied to the ring being fitted.

FAQ - TIMKEN 6207-2RS-NR

What are the dimensions of TIMKEN 6207-2RS-NR?

The bearing has a 35 mm bore diameter, 72 mm outside diameter and 17 mm width. Its principal dimensions are 35x72x17 mm.

What does 2RS mean?

2RS identifies contact seals on both sides of the bearing.

What does NR mean?

NR identifies an outer-ring snap-ring groove with a snap ring.

Does TIMKEN 6207-2RS-NR include the snap ring?

Yes. The NR designation identifies the version with the snap-ring groove and snap ring.

What is the maximum outside diameter of the snap ring?

TIMKEN specifies a maximum D2 dimension of 78.6 mm.

What is the dynamic load rating?

TIMKEN specifies a dynamic radial load rating C1 of 25.7 kN.

What is the static load rating?

TIMKEN specifies a static radial load rating C0 of 15.3 kN.

What is the limiting speed of 6207-2RS-NR?

TIMKEN specifies 6300 rpm for grease lubrication and 14000 rpm for oil lubrication.

Can 6207-2RS replace 6207-2RS-NR?

Not automatically. The NR version has an outer-ring groove and snap ring used for axial location, while a standard 6207-2RS does not provide the same feature.

TIMKEN 6207-2RS-NR 35x72x17 mm - key information

TIMKEN 6207-2RS-NR is a single-row deep groove ball bearing with dimensions of 35x72x17 mm, contact seals on both sides and an outer-ring snap-ring groove with snap ring. TIMKEN specifies a dynamic radial load rating of 25.7 kN, static radial load rating of 15.3 kN and grease limiting speed of 6300 rpm.

Availability from simmering.pl

TIMKEN 6207-2RS-NR 35x72x17 mm deep groove ball bearing is available from simmering.pl for industrial customers, maintenance departments, machine manufacturers, technical services, distributors and B2B procurement.

simmering.pl supplies industrial bearings and technical sealing products from stock in Poland, with worldwide shipping available.