SNR EC.40987.H206 25x59/65.83x17.5 - Tapered Roller Bearing

SNR EC.40987.H206 25x59/65.83x17.5 mm - Tapered Roller Gearbox Bearing with Flange

SNR EC.40987.H206 is a single-row tapered roller bearing manufactured under the SNR brand of the NTN Group, designed for manual automotive transmissions. Its catalogue dimensions are 25x59/65.83x17.5 mm. The bearing features a 25 mm bore, a 59 mm outer ring body diameter and a 65.83 mm flange diameter. This special flanged tapered roller bearing is used in selected Renault and Nissan gearbox applications. The complete EC.40987.H206 designation identifies the specific manufacturer version.

Technical Specifications - SNR EC.40987.H206

Important dimensional distinction: The designation 25x59/65.83x17.5 mm contains two different outside diameters.

The 59 mm dimension refers to the outer ring body, while 65.83 mm refers to the flange diameter.

Both dimensions are important when checking compatibility with the gearbox housing.

The dimensions 65.83 mm and 17.5 mm are given in the NTN-SNR transmission bearing catalogue. Some commercial listings use rounded dimensions of 65 mm and 17 mm.

What Does SNR EC.40987.H206 Mean?

EC.40987 - Special Transmission Bearing Identification

EC.40987 forms part of the manufacturer's designation for a special tapered roller bearing intended for automotive transmission applications.

It is not a conventional dimensional series designation such as 30205 or 32005.

The designation identifies a specific bearing construction with geometry intended for a particular transmission mounting arrangement.

H206 - Manufacturer Version Identification

H206 is an integral part of the complete SNR bearing designation.

It must not be omitted when ordering the bearing or selecting a replacement.

The H206 element does not, by itself, establish a particular cage material, internal clearance or precision class.

These characteristics must be verified in the manufacturer's technical documentation if required for the application.

SNR - NTN Group Brand

SNR is a brand within the NTN Group, a manufacturer of rolling bearings for industrial and automotive applications, including bearings used in vehicle transmissions.

Alternative Designations and Reference Numbers

The bearing may be identified in technical catalogues, distributor listings and purchasing enquiries using the following written variations:

• SNR EC.40987.H206

• EC.40987.H206 SNR

• EC 40987 H206 SNR

• EC40987H206 SNR

• NTN-SNR EC.40987.H206

• EC40987H206

• EC 40987 H206 25x59/65.83x17.5 mm

These are written variations used to identify the same product. They do not indicate separate bearing versions.

Confirmed OE Reference Numbers

These OE references can be used to identify the bearing in vehicle service documentation and replacement parts catalogues.

Compatibility must always be checked against the specific gearbox version.

Construction and Operating Principle of SNR EC.40987.H206

Single-Row Tapered Roller Construction

EC.40987.H206 is a single-row tapered roller bearing.

Its rolling elements are tapered rollers operating between correspondingly shaped inner and outer ring raceways.

This construction allows the bearing to support combined radial and axial loads.

In a manual transmission, this capability is important because gear engagement and torque transmission generate both radial forces and axial thrust.

The bearing supports shaft positioning and load transmission within the gearbox assembly.

Flanged Outer Ring

A distinguishing feature of EC.40987.H206 is its outer ring flange with a diameter of 65.83 mm.

The main outer ring body diameter is 59 mm.

The flange forms part of the bearing's mounting geometry and must correspond to the design of the transmission housing.

Its geometry is important for correct positioning and axial location of the outer ring within the gearbox.

A conventional tapered roller bearing with a 25 mm bore and a 59 mm outside diameter must not automatically be considered interchangeable with this special flanged version.

Inner Ring and Tapered Rollers

The inner ring is designed for installation on a shaft with a nominal diameter of 25 mm.

The tapered rollers operate between the inner and outer raceways, transmitting forces through rolling contact.

The tapered contact geometry allows the bearing to accommodate combined loads.

The actual operating load capacity depends on the bearing specifications, installation conditions and the arrangement of the complete gearbox shaft support system.

Radial and Axial Load Transmission

A single-row tapered roller bearing can support radial loads and axial loads in one direction.

The direction of axial load support depends on the orientation of the bearing.

Where axial loads act in both directions, the shaft support arrangement must provide the necessary opposing support.

The required axial clearance or preload is determined by the design of the complete transmission.

These settings must not be established solely from the bearing's principal dimensions.

Lubrication Within the Gearbox

EC.40987.H206 is intended for installation in a transmission assembly.

Lubrication conditions depend on the gearbox design and the vehicle manufacturer's specifications.

The lubricant type, viscosity and service requirements must be determined from the documentation for the specific transmission.

The bearing should not be assigned an arbitrary grease specification or lubrication interval.

Applications of SNR EC.40987.H206

The manufacturer classifies EC.40987.H206 as a passenger car gearbox bearing.

NTN-SNR catalogue information identifies applications associated with the following gearbox families:

• JA5

• JC5

• JC7

• JR5

These gearbox families are associated with selected Renault, Nissan and Dacia vehicle applications.

Renault Applications

The manufacturer's application information includes selected versions within vehicle families such as:

• Renault Clio

• Renault Megane

• Renault Kangoo

• Renault Laguna

• Renault Scenic

• Renault Twingo

Nissan Applications

Selected applications are also listed within vehicle families including:

• Nissan Almera

• Nissan Micra

• Nissan Note

• Nissan Qashqai

• Nissan NV200

Dacia Applications

The manufacturer's catalogue also includes selected Dacia applications, including versions of the Dacia Sandero.

Important: These model families do not represent universal compatibility with every engine, model year or gearbox version.

The exact application must be confirmed using the transmission code, OE reference and vehicle configuration.

A vehicle model name alone is not sufficient for reliable bearing selection.

SNR EC.40987.H206 vs Other Tapered Roller Bearings

EC.40987.H206 vs Standard 25x59 mm Tapered Roller Bearings

EC.40987.H206 is a special transmission bearing with a 65.83 mm outer ring flange.

A conventional tapered roller bearing with a 25 mm bore and a 59 mm outside diameter may have different overall dimensions, raceway geometry and mounting characteristics.

Even if the bore and main outside diameter are identical, the flange geometry may prevent direct replacement.

The correct bearing must match the gearbox housing and shaft support arrangement.

EC.40987.H206 vs EC.12625.S02.H206

Both designations appear in NTN-SNR transmission bearing catalogues, but they identify different products.

The dimensional and construction differences mean that these bearings must not be considered interchangeable without checking the transmission documentation.

Why the Exact Manufacturer Designation Matters

Special automotive transmission bearings may differ in flange geometry, ring dimensions and mounting arrangements even when their basic bore and outside diameters are similar.

The complete designation EC.40987.H206 should therefore be used when ordering replacement parts.

Omitting H206 or substituting a different EC-series reference may result in an incompatible bearing.

Selection and Interchangeability of SNR EC.40987.H206

Before purchasing, verify the following:

1. Complete manufacturer designation EC.40987.H206.

2. Renault or Nissan OE reference.

3. Exact gearbox identification code.

4. Bore diameter of 25 mm.

5. Outer ring body diameter of 59 mm.

6. Flange diameter of 65.83 mm.

7. Catalogue width of 17.5 mm.

8. Outer ring and flange geometry.

9. Bearing position within the transmission.

10. Direction and magnitude of axial loads.

11. Required bearing clearance or preload.

12. Compatibility with the gearbox housing.

13. Shaft mounting requirements.

14. Transmission lubrication conditions.

15. Vehicle manufacturer's service specifications.

Can EC.40987.H206 Be Replaced by Another Manufacturer's Bearing?

A replacement from another manufacturer may be considered only when its dimensions, flange geometry, construction and intended application are compatible.

Matching the 25 mm bore and 59 mm outer ring body diameter is not sufficient.

The replacement must also match the flange diameter, axial dimensions and transmission mounting arrangement.

The OE reference and gearbox identification should be checked before selecting an alternative.

How to Identify the Correct Gearbox Bearing

For gearbox repair, the most reliable identification method is to compare:

• The complete designation on the removed bearing.

• The vehicle manufacturer's OE part number.

• The transmission identification code.

• The physical dimensions and flange geometry.

• The relevant gearbox service documentation.

This approach helps prevent incorrect selection when several bearing versions are used within the same vehicle family.

Installation and Operating Recommendations

Preparation Before Installation

Before mounting the bearing, clean the shaft and bearing housing.

Inspect the mating surfaces for wear, corrosion, burrs and mechanical damage.

Verify the required shaft and housing fits.

Correct Application of Mounting Force

When pressing a bearing ring into position, apply installation force directly to the ring being fitted.

Do not transmit mounting force through the tapered rollers.

Incorrect force application may damage the raceways and rolling elements before the transmission is returned to service.

Flange Positioning

The outer ring flange must be correctly seated in the transmission housing.

Verify that the bearing is installed in the intended orientation and that the flange corresponds to the housing geometry.

Axial Clearance and Preload

The axial clearance or preload must be adjusted according to the service instructions for the specific transmission.

Incorrect adjustment may cause excessive operating temperature, noise, premature wear or inadequate shaft support.

Do not use a generic preload value taken from another gearbox design.

Lubrication and Storage

Lubrication must comply with the transmission manufacturer's requirements.

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

Protect the raceways, rolling elements and mounting surfaces against contamination and damage.

Frequently Asked Questions - SNR EC.40987.H206

What Are the Dimensions of SNR EC.40987.H206?

The catalogue dimensions are 25x59/65.83x17.5 mm. The bore diameter is 25 mm, the outer ring body diameter is 59 mm, the flange diameter is 65.83 mm and the catalogue width is 17.5 mm.

Is EC.40987.H206 a Tapered Roller Bearing?

Yes. EC.40987.H206 is a single-row tapered roller bearing with a flanged outer ring, designed for automotive manual transmission applications.

Why Are Two Outside Diameters Specified?

The 59 mm dimension refers to the main outer ring body diameter, while 65.83 mm refers to the flange diameter.

Both dimensions are important because the flange forms part of the bearing's mounting arrangement inside the transmission housing.

Which Gearboxes Use SNR EC.40987.H206?

NTN-SNR catalogue information identifies applications associated with JA5, JC5, JC7 and JR5 gearbox families.

Compatibility must be confirmed using the exact gearbox identification and OE reference.

What Are the OE Reference Numbers for EC.40987.H206?

The confirmed OE references are Renault 8200115697 and Nissan 32264-00QAH.

These numbers should be checked against the relevant vehicle and transmission documentation.

Can a Standard 25x59x17.5 mm Bearing Replace EC.40987.H206?

Direct replacement must not be assumed.

EC.40987.H206 has a special outer ring flange with a diameter of 65.83 mm.

A standard bearing without the matching flange geometry may not fit or locate correctly within the gearbox housing.

Is SNR EC.40987.H206 Supplied with Seals?

The complete designation alone does not establish a specific sealing arrangement.

The bearing operates within a transmission assembly, where lubrication and protection depend on the gearbox construction.

Is the Vehicle Model Enough to Identify the Correct Bearing?

No. Different transmissions may be fitted within the same vehicle model family.

The gearbox code, OE reference and bearing construction must be checked before ordering.

SNR EC.40987.H206 - Key Technical Information

SNR EC.40987.H206 is a single-row flanged tapered roller bearing manufactured under the SNR brand of the NTN Group. Its catalogue dimensions are 25x59/65.83x17.5 mm. The 65.83 mm outer ring flange distinguishes it from conventional tapered roller bearings. Designed for selected manual transmissions, it corresponds to Renault OE 8200115697 and Nissan OE 32264-00QAH.

SNR EC.40987.H206 at simmering.pl

SNR EC.40987.H206 is offered by simmering.pl, a specialist supplier of rolling bearings, tapered roller bearings and components for industrial and automotive applications.

We serve mechanical workshops, gearbox repair specialists, industrial maintenance departments and B2B purchasing teams.

Our warehouse and order processing operations are located in Lublin, Poland.

We supply customers throughout Europe and offer worldwide shipping.

We also assist customers in identifying bearing designations, dimensions and compatible replacement parts.