SNR UK206G2H 25x62x25 mm - Insert Bearing for H2306 Adapter Sleeve

SNR UK206G2H 25x62x25 mm - Self-Aligning Insert Ball Bearing for H2306 Adapter Sleeve

SNR UK206G2H is a single-row self-aligning insert ball bearing manufactured under the SNR brand of the NTN Group. It is designed for installation on a 25 mm shaft using an H2306 adapter sleeve. The bearing has an outside diameter of 62 mm, an inner ring width of 25 mm and a spherical outer ring surface for installation in a compatible bearing housing. Unlike UC-series inserts, the UK206G2H uses a tapered bore and adapter sleeve shaft locking system.

Technical Specifications - SNR UK206G2H

Important dimensional clarification: The designation 25x62x25 mm refers to the shaft diameter when using the H2306 adapter sleeve, the bearing outside diameter and the inner ring width.

It does not mean that the bearing itself has a 25 mm cylindrical bore.

The UK206G2H insert has a tapered bore with a nominal diameter of 30 mm. The H2306 adapter sleeve enables installation on a 25 mm shaft.

What Does SNR UK206G2H Mean?

UK - Insert Ball Bearing with Tapered Bore

UK identifies a series of insert ball bearings with tapered bores, designed for shaft mounting using an adapter sleeve.

Unlike UC-series inserts, which are secured to the shaft using set screws, UK-series inserts use a tapered connection and sleeve clamping mechanism.

This provides a different shaft locking arrangement and requires a specific installation procedure.

206 - Bearing Size

The number 206 identifies the bearing dimensional series.

For UK206G2H, the outside diameter is 62 mm, and the nominal tapered bore diameter is 30 mm.

When the H2306 adapter sleeve is used, the bearing can be installed on a 25 mm shaft.

G2 - SNR Bearing Version

G2 is part of the manufacturer's designation.

It should not automatically be interpreted as C3 internal clearance, a particular grease specification or a precision class.

The complete designation must be retained when identifying or ordering a replacement bearing.

H - Adapter Sleeve Mounting Version

In the designation UK206G2H, the suffix H identifies the version intended for mounting with the appropriate adapter sleeve.

For this bearing, the manufacturer specifies the H2306 adapter sleeve, allowing installation on a 25 mm shaft.

Before ordering, confirm whether the supplier's offer includes the adapter sleeve or only the bearing insert.

SNR - NTN Group Brand

SNR is a brand within the NTN Group, a manufacturer of rolling bearings, bearing inserts, bearing housings and complete mounted bearing units.

Alternative Designations and Reference Numbers

The product may appear in technical catalogues, distributor listings and purchasing enquiries under the following written forms:

• SNR UK206G2H

• UK206G2H SNR

• UK 206 G2 H SNR

• SNR UK 206 G2 H

• NTN-SNR UK206G2H

• UK206G2H 25 mm

• UK206G2H 62 mm

• UK206G2H H2306

• UK206G2H insert bearing

• UK206G2H tapered bore bearing

• UK206G2H adapter sleeve insert bearing

• SNR UK206G2H self-aligning bearing insert

Related designations:

• UK206G2 - tapered bore insert bearing without the H completion designation.

• H2306 - adapter sleeve for a 25 mm shaft.

• UK206G2H - insert bearing version intended for mounting with the H2306 adapter sleeve.

• UKP206H - complete pillow block bearing unit incorporating a UK206G2H insert and P206 housing.

The designation of an individual bearing insert should not be confused with that of a complete mounted bearing unit.

Construction and Operating Principle of SNR UK206G2H

Tapered Bore - 1:12

The bearing has a tapered bore with a taper ratio of 1:12.

This design allows installation using a compatible adapter sleeve.

When the sleeve nut is tightened, the sleeve clamps onto the shaft while the bearing is seated on the tapered sleeve surface.

Correct installation requires following the manufacturer's mounting procedure.

The tapered connection must not be treated as equivalent to a cylindrical bore with set screw locking.

H2306 Adapter Sleeve

The H2306 adapter sleeve enables the bearing to be secured to a 25 mm shaft.

The mounting arrangement includes a tapered sleeve, locknut and suitable locking element.

This construction creates a clamping connection between the bearing and shaft without requiring set screws to press directly against the shaft surface.

The sleeve and associated components must be correctly matched to the bearing and shaft.

Spherical Outer Ring

The bearing has a spherical outer ring surface.

This surface fits into a corresponding spherical seat in a compatible bearing housing.

The arrangement allows limited angular adjustment during installation.

However, it does not permit unrestricted operating misalignment.

The permissible angular adjustment depends on the housing design and operating conditions.

Sealing Arrangement with Flinger

SNR UK206G2H features seals on both sides with an additional flinger.

The sealing arrangement helps reduce the entry of contaminants into the rolling element area and supports lubricant retention.

The flinger provides an additional barrier against external contamination.

Sealing effectiveness depends on the operating environment.

The bearing should not be considered completely resistant to high-pressure washing, aggressive chemicals or severe abrasive contamination without application-specific verification.

Single-Row Ball Bearing Construction

UK206G2H is a single-row insert ball bearing.

Its construction is primarily intended to support radial loads and suitable axial loads within the limits established by the manufacturer and the mounting arrangement.

The bearing insert must be installed in a compatible housing to provide the intended shaft support.

Load Ratings of SNR UK206G2H

Basic Dynamic Load Rating C - 19.5 kN

The basic dynamic load rating is 19.5 kN.

This parameter is used when calculating bearing fatigue life under dynamic operating loads.

It does not represent the maximum permissible load of a complete bearing unit incorporating the housing and adapter sleeve.

Basic Static Load Rating C0 - 11.2 kN

The basic static load rating is 11.2 kN.

This parameter is used to evaluate loads that may cause permanent deformation at the contact points between the balls and raceways.

The strength and suitability of the adapter sleeve, housing and supporting machine structure must also be considered.

SNR UK206G2H vs Other Bearing Versions

UK206G2H vs UK206G2

Both designations refer to UK206-series insert bearings with an outside diameter of 62 mm.

UK206G2H identifies the version intended for installation on a 25 mm shaft using an H2306 adapter sleeve.

UK206G2, without the H suffix, identifies the tapered bore insert with a nominal bore diameter of 30 mm. The appropriate sleeve and shaft mounting arrangement must be selected separately.

Neither designation should be interpreted as identifying a bearing with a 25 mm cylindrical bore.

UK206G2H vs UC206G2

These inserts differ in their shaft locking systems and axial dimensions.

They are not directly interchangeable without checking the shaft diameter, available installation space and housing construction.

UK206G2H vs UK205G2H

UK205G2H is a smaller insert bearing designed for a 20 mm shaft with the appropriate adapter sleeve.

Its outside diameter is 52 mm.

UK206G2H is designed for a 25 mm shaft and has an outside diameter of 62 mm.

These bearings are not directly interchangeable.

UK206G2H vs UK207G2H

UK207G2H is a larger insert bearing designed for a 30 mm shaft with the appropriate adapter sleeve.

Its outside diameter is 72 mm.

UK206G2H is designed for a 25 mm shaft and has an outside diameter of 62 mm.

The versions have different dimensions and are not direct replacements for each other.

Selection and Interchangeability of SNR UK206G2H

Before ordering, verify the following:

1. Complete manufacturer designation UK206G2H.

2. Manufacturer SNR.

3. Nominal shaft diameter of 25 mm.

4. Bearing outside diameter of 62 mm.

5. Inner ring width of 25 mm.

6. Outer ring width of 19 mm.

7. Tapered bore ratio of 1:12.

8. H2306 adapter sleeve designation.

9. Whether the adapter sleeve is included in the supply.

10. Bearing sealing configuration.

11. Spherical outer ring geometry.

12. Compatibility with the existing bearing housing.

13. Required internal clearance.

14. Radial and axial operating loads.

15. Rotational speed.

16. Operating temperature.

17. Lubrication conditions.

18. Adapter sleeve installation requirements.

Can UK206G2H Be Replaced by a Bearing from Another Manufacturer?

An equivalent bearing from another manufacturer may be considered after confirming dimensional, construction and operating compatibility.

The outside diameter, inner and outer ring widths, bore taper, sealing arrangement, shaft locking method, adapter sleeve and operating specifications must be compared.

An identical 206 size designation alone does not guarantee interchangeability.

Applications of SNR UK206G2H

Insert ball bearings with adapter sleeve shaft locking are used in bearing units supporting rotating shafts in industrial machinery.

Typical applications include:

• Pillow block bearing units.

• Flange bearing units with compatible housings.

• Conveyor and material handling systems.

• Production machinery.

• Drive and auxiliary shaft assemblies.

• Machinery requiring adapter sleeve shaft locking.

• Bearing arrangements designed for replaceable inserts.

These are typical applications of UK-series bearing inserts, not a verified list of specific machine models originally equipped with SNR UK206G2H.

Suitability for a particular application must be confirmed against the operating loads, rotational speed, mounting geometry and environmental conditions.

Installation and Operating Recommendations

Shaft Preparation

The shaft should have a nominal diameter of 25 mm.

Before installation, inspect the shaft for dimensional accuracy, cleanliness and surface condition.

Remove burrs, corrosion and other damage that could prevent proper adapter sleeve clamping.

H2306 Adapter Sleeve Installation

Install the H2306 adapter sleeve according to the manufacturer's procedure.

The bearing insert is then positioned on the tapered sleeve surface.

Tightening the sleeve nut causes the sleeve to clamp onto the shaft.

Do not apply an arbitrary tightening torque without checking the manufacturer's mounting instructions.

Correct tightening is important for secure shaft locking and bearing operation.

Installation in the Housing

The spherical outer ring requires a compatible housing with a corresponding spherical seat.

Before installation, inspect the housing seat and confirm dimensional compatibility.

A damaged or incompatible housing may prevent correct bearing positioning.

Shaft Alignment

The construction allows limited angular adjustment during installation.

It should not be used to compensate for major machine geometry errors or excessive shaft misalignment.

Lubrication

Lubrication should follow the manufacturer's recommendations and the actual operating conditions.

Relubrication requirements depend on rotational speed, load, temperature and environmental conditions.

Do not introduce an incompatible lubricant without checking its suitability.

Operating Inspection

During service, regularly inspect:

• Bearing temperature.

• Noise and vibration.

• Seal condition.

• Adapter sleeve locking stability.

• Locknut and locking element condition.

• Lubrication condition.

• Signs of corrosion or mechanical damage.

Storage

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

Protect the tapered bore, spherical outer ring, seals and rolling elements against moisture, dust and mechanical damage.

Frequently Asked Questions - SNR UK206G2H

What Are the Dimensions of SNR UK206G2H?

The bearing has an outside diameter of 62 mm, an inner ring width of 25 mm and an outer ring width of 19 mm. It is designed for installation on a 25 mm shaft using an H2306 adapter sleeve.

Does UK206G2H Have a 25 mm Bore?

No. The bearing does not have a 25 mm cylindrical bore. It has a tapered bore with a 1:12 taper. The 25 mm dimension refers to the shaft diameter when the H2306 adapter sleeve is used.

Which Adapter Sleeve Is Used with UK206G2H?

The manufacturer specifies the H2306 adapter sleeve for the UK206G2H version.

Are UK206G2H and UC206G2 Interchangeable?

Not without checking the bearing arrangement. UK206G2H is secured to a 25 mm shaft using an adapter sleeve, while UC206G2 is secured to a 30 mm shaft using set screws.

What Are the Load Ratings of UK206G2H?

The basic dynamic load rating is 19.5 kN, and the basic static load rating is 11.2 kN.

Is UK206G2H a Self-Aligning Bearing Insert?

Yes. Its spherical outer ring allows installation in a compatible bearing housing and limited angular adjustment during assembly.

Is the H2306 Adapter Sleeve Always Included?

The exact scope of supply must be checked in the specific product offer. The UK206G2H designation identifies the version intended for H2306 adapter sleeve mounting, but the designation alone should not be treated as confirmation of the package contents.

What Is the Difference Between UK206G2H and UK206G2?

UK206G2H identifies the version intended for a 25 mm shaft with an H2306 adapter sleeve. UK206G2 identifies the tapered bore insert with a nominal bore diameter of 30 mm, for which the appropriate sleeve and mounting arrangement must be selected.

SNR UK206G2H - Key Technical Information

SNR UK206G2H is a single-row self-aligning insert ball bearing designed for installation on a 25 mm shaft using an H2306 adapter sleeve. It has an outside diameter of 62 mm, an inner ring width of 25 mm and a tapered bore with a 1:12 taper. Its spherical outer ring allows installation in a compatible housing. The basic dynamic load rating is 19.5 kN, and the static rating is 11.2 kN.

SNR UK206G2H at simmering.pl

SNR UK206G2H is offered by simmering.pl, a specialist supplier of rolling bearings, self-aligning bearing inserts, adapter sleeves, bearing housings and complete mounted bearing units.

We serve machinery manufacturers, industrial maintenance departments, mechanical repair workshops and B2B purchasing teams.

Our warehouse and order processing operations are located in Lublin, Poland. We supply customers throughout Europe and offer worldwide shipping.