SNR UCPAE206 30 mm 98x82 mm - Compact Pillow Block Bearing Unit

SNR UCPAE206 30 mm 98x82 mm - Compact Pillow Block Bearing Unit

SNR UCPAE206 is a complete self-aligning compact pillow block bearing unit manufactured under the SNR brand of the NTN Group, designed for a 30 mm shaft. It consists of a PAE206 cast iron housing and a UC206G2 insert ball bearing secured to the shaft by set screws. The housing measures 98 mm in length and 82 mm in height, with two M10 threaded mounting holes spaced 76.2 mm apart. The shaft centre height is 42.9 mm.

Technical Specifications - SNR UCPAE206

Important: UCPAE206 identifies the complete bearing unit containing the PAE206 housing and UC206G2 insert. It must not be confused with UCPA206, UCP206 or USPAE206.

The dimensions 98x82 mm describe the housing length and overall height, not the dimensions of the bearing insert.

The dynamic and static load ratings refer to the UC206G2 bearing insert. They do not represent the maximum permissible load of the complete housing, threaded mounting holes or supporting machine structure.

What Does SNR UCPAE206 Mean?

UC - Insert Ball Bearing with Set Screw Locking

UC identifies a series of insert ball bearings designed for installation in compatible bearing housings.

The UC206G2 insert has a cylindrical bore diameter of 30 mm and a spherical outer ring surface.

It is secured directly to the shaft using set screws located in the inner ring.

PAE - Compact Pillow Block Housing

PAE identifies a compact pillow block housing design.

The PAE206 housing measures 98 mm in length and 38 mm in width.

Its distinctive feature is a pair of M10 threaded mounting holes with centre spacing of 76.2 mm.

Unlike the standard P206 pillow block housing, PAE206 does not use elongated through-holes for mounting.

206 - Bearing Unit Size

The number 206 identifies the dimensional size of the bearing unit.

For UCPAE206, the nominal shaft diameter is 30 mm.

This size corresponds to the combination of a PAE206 housing and a UC206G2 insert ball bearing.

G2 - SNR Bearing Insert Version

G2 is part of the complete UC206G2 manufacturer designation.

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

The complete designation should be retained when identifying or ordering a replacement 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 UCPAE206

• UCPAE206 SNR

• UCPAE 206 SNR

• SNR UCPAE 206

• NTN-SNR UCPAE206

• UCPAE206 30 mm

• UCPAE206 98x82 mm

• UCPAE206 M10

• SNR UCPAE206 compact pillow block

• UCPAE206 mounted bearing unit

Related component designations:

• PAE206 - cast iron housing only.

• UC206G2 - insert ball bearing only.

• UCPAE206 - complete mounted bearing unit.

UCPAE206 should not be confused with USPAE206. The USPAE206 version uses a different bearing insert and has different inner ring axial dimensions.

Construction and Operating Principle of SNR UCPAE206

PAE206 Compact Cast Iron Housing

The PAE206 housing is manufactured from grey cast iron.

Its overall length is 98 mm, height is 82 mm and width is 38 mm.

The mounting base contains two M10 threaded holes.

The mounting hole centre spacing is 76.2 mm, and the thread depth is 12.5 mm.

This arrangement allows the housing to be secured using suitable bolts threaded into the housing base.

Correct bolt length and thread engagement are important for reliable installation.

Shaft Centre Height - 42.9 mm

The distance from the housing mounting base to the shaft centreline is 42.9 mm.

This is an important parameter when replacing a bearing unit because it determines the position of the shaft relative to other machine components.

UCPAE206 has the same nominal shaft centre height as UCP206 but a substantially different mounting base geometry.

UC206G2 Insert Ball Bearing

The PAE206 housing contains a UC206G2 insert ball bearing.

It is a single-row ball bearing designed for a nominal 30 mm shaft.

The inner ring width is 38.1 mm.

The insert has a spherical outer ring surface that fits into the corresponding housing seat.

Self-Aligning Bearing Arrangement

The spherical outer ring works with the matching seat in the PAE206 housing.

This allows limited angular adjustment during installation.

However, it does not permit unrestricted operating misalignment.

The permissible alignment depends on the bearing unit design and operating conditions.

Sealing Arrangement with Flinger

The UC206G2 insert used in UCPAE206 features a sealing arrangement with an additional flinger.

The flinger helps reduce the entry of contaminants into the sealing area.

This arrangement supports the protection of rolling elements and lubricant.

It should not be considered completely resistant to high-pressure washing or aggressive chemicals without application-specific verification.

Set Screw Shaft Locking

The bearing insert is secured directly to the shaft using set screws.

The manufacturer's recommended tightening torque is 5.5 Nm.

Before installation, verify the shaft diameter and surface condition.

R1/8" Grease Fitting Connection

UCPAE206 has a grease fitting connection designated R1/8".

This differs from the M6x1 grease fitting connection used in the standard SNR UCP206.

When replacing the grease fitting, the correct thread type and size must be maintained.

Load Ratings of SNR UCPAE206

Basic Dynamic Load Rating C - 19.5 kN

The basic dynamic load rating of the UC206G2 insert is 19.5 kN.

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

It is not the maximum permissible force acting on the complete housing.

Basic Static Load Rating C0 - 11.2 kN

The basic static load rating of the insert 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.

For UCPAE206, the strength of the threaded mounting holes and the housing attachment method must also be considered.

SNR UCPAE206 vs Other Bearing Unit Variants

UCPAE206 vs UCP206

Both bearing units are designed for a nominal 30 mm shaft and use a UC206G2 insert.

However, their housing dimensions and mounting arrangements differ.

UCPAE206 is not a direct replacement for UCP206 because the mounting base and installation geometry are different.

UCPAE206 vs UCPA206

UCPAE206 and UCPA206 are compact pillow block bearing units with threaded mounting holes.

Both use a UC206G2 insert, but their housing dimensions differ.

Despite the identical shaft diameter and shaft centre height, these bearing units are not directly interchangeable.

UCPAE206 vs USPAE206

Both bearing units use a PAE206 housing and are designed for a 30 mm shaft.

However, they contain different bearing inserts.

The variants differ in the axial dimensions of the bearing insert.

Before substitution, verify the available installation space and shaft locking requirements.

UCPAE206 vs UCPAE206CO

UCPAE206 is the standard bearing unit without additional housing protective covers.

UCPAE206CO is a version with additional open protective covers.

These covers change the axial dimensions of the assembly.

Complete interchangeability should not be assumed without checking the available mounting space.

Selection and Interchangeability of SNR UCPAE206

Before ordering, verify the following:

1. Complete manufacturer designation UCPAE206.

2. Manufacturer and required bearing unit version.

3. Nominal shaft diameter of 30 mm.

4. Housing overall length of 98 mm.

5. Housing overall height of 82 mm.

6. Shaft centre height of 42.9 mm.

7. Mounting hole centre spacing of 76.2 mm.

8. M10 mounting hole threads.

9. Mounting thread depth of 12.5 mm.

10. Housing width of 38 mm.

11. UC206G2 bearing insert designation.

12. Set screw shaft locking arrangement.

13. Bearing sealing configuration.

14. Required internal clearance.

15. Radial and axial operating loads.

16. Rotational speed.

17. Operating temperature.

18. R1/8" grease fitting connection.

19. Strength of the threaded mounting holes and supporting machine structure.

Can UCPAE206 Be Replaced by a Bearing Unit from Another Manufacturer?

A corresponding unit from another manufacturer may be considered only after confirming dimensional and construction compatibility.

The shaft diameter, shaft centre height, housing length, mounting hole spacing, mounting thread type, housing geometry, bearing insert and sealing arrangement must be checked.

A matching 30 mm shaft diameter alone is not sufficient to confirm interchangeability.

Applications of SNR UCPAE206

Compact UCPAE-series pillow block bearing units are designed to support rotating shafts in equipment where the housing is secured using threaded mounting holes in its base.

Typical applications of this construction include:

• Compact shaft support arrangements.

• Conveyor and material handling equipment.

• Production machinery.

• Drive and auxiliary mechanisms.

• Machines with limited installation space.

• Equipment designed to use replaceable insert ball bearings.

These are typical applications of UCPAE-series bearing units, not a verified list of specific machine models originally equipped with SNR UCPAE206.

Selection for an individual application requires evaluation of load, rotational speed and the housing mounting arrangement.

Installation and Operating Recommendations

Mounting Surface Preparation

The mounting surface should be clean, flat and sufficiently rigid.

Uneven surfaces may introduce unwanted stresses into the housing.

Housing Installation

The PAE206 housing has two M10 threaded mounting holes with centre spacing of 76.2 mm.

The mounting thread depth is 12.5 mm.

Use bolts of appropriate length to ensure sufficient thread engagement without damaging the housing.

Mounting bolt tightening torque should be selected according to the joint design and installation requirements.

Shaft Installation

The shaft should have a nominal diameter of 30 mm.

Before installing the insert, remove dirt, burrs and corrosion.

Tighten the set screws using the manufacturer's recommended torque of 5.5 Nm.

Shaft Alignment

The shaft centre height from the mounting base is 42.9 mm.

When replacing an existing unit, verify that this dimension matches the machine requirements.

The spherical outer ring allows limited angular adjustment during installation.

Lubrication

The grease fitting connection has an R1/8" thread.

Before replacing the grease fitting, verify that the new component has the correct thread type.

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

Operating Inspection

During operation, regularly inspect:

• Bearing temperature.

• Noise and vibration.

• Seal condition.

• Shaft locking stability.

• Mounting bolt and thread condition.

• Lubrication condition.

• Signs of corrosion or housing damage.

Storage

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

Protect the bearing insert, seals, threads and mounting surfaces against moisture and mechanical damage.

Frequently Asked Questions - SNR UCPAE206

What are the dimensions of SNR UCPAE206?

The bearing unit is designed for a 30 mm shaft. The housing measures 98 mm in length, 82 mm in height and 38 mm in width. The shaft centre height is 42.9 mm, and the mounting hole spacing is 76.2 mm.

What does UCPAE206 mean?

UC identifies an insert ball bearing with set screw shaft locking. PAE identifies a compact pillow block housing with threaded mounting holes, and 206 specifies the bearing unit size designed for a nominal 30 mm shaft.

Which Bearing Insert Is Used in UCPAE206?

The unit incorporates an SNR UC206G2 insert ball bearing with a 30 mm bore and an inner ring width of 38.1 mm.

Which Mounting Bolts Are Used for UCPAE206?

The housing has two M10 threaded mounting holes with a thread depth of 12.5 mm. Bolt length and tightening torque must be selected according to the specific mounting arrangement.

Are UCPAE206 and UCP206 Interchangeable?

Not without checking or modifying the mounting arrangement. UCPAE206 has a compact 98 mm housing with two threaded M10 holes, while UCP206 has a 165 mm housing with two elongated through-holes.

What Is the Difference Between UCPAE206 and UCPA206?

UCPAE206 has mounting hole spacing of 76.2 mm and M10 threads. UCPA206 has 66 mm spacing and M14 threads. The units also differ in housing dimensions and grease fitting connections.

What Are the Load Ratings of SNR UCPAE206?

The UC206G2 insert has a basic dynamic load rating of 19.5 kN and a basic static load rating of 11.2 kN. These values do not define the maximum permissible load of the complete unit, including the housing.

Are UCPAE206 and USPAE206 the Same Product?

No. UCPAE206 contains a UC206G2 insert with an inner ring width of 38.1 mm, while USPAE206 contains a US206G2 insert with an inner ring width of 30 mm. Their axial dimensions are different.

SNR UCPAE206 - Key Technical Information

SNR UCPAE206 is a compact self-aligning pillow block bearing unit for a 30 mm shaft, manufactured under the SNR brand of the NTN Group. It combines a PAE206 cast iron housing with a UC206G2 insert secured by set screws. The housing measures 98x82 mm, with two M10 threaded mounting holes spaced 76.2 mm apart and a shaft centre height of 42.9 mm. The complete unit weighs 0.95 kg.

SNR UCPAE206 at simmering.pl

SNR UCPAE206 is offered by simmering.pl, a specialist supplier of rolling bearings, self-aligning bearing inserts, 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.