Engineered for Reliability in Tough Environments

The SN Series Bearing Housings are specifically crafted to handle demanding industrial settings. Built from cast iron with a smooth painted finish, these housings provide excellent corrosion resistance and withstand operational temperatures from -20C up to 120C. The split housing construction enables easy maintenance and bearing replacement, minimizing downtime in essential operations.

Wide Compatibility and High Interchangeability

Designed according to international standard dimensions, the SN Series foot-mounted housings fit a variety of bearing series such as 1200, 2200, 1300, 2300, 22200, and 22300. With bore sizes ranging from 40 mm to 160 mm, these housings deliver versatile installation options for manufacturers, suppliers, and wholesalers across India.

High Performance and Protection

Featuring double lip seals and the option for an end cover, the SN Series protects bearings from dust and contaminants, ensuring long service life. The steel retainer, single-row design, and high load capacity (dependent on bearing fitted) make it suitable for heavy-duty applications while maintaining consistent, reliable operation.

FAQ's of SN Series Bearing Housing:

Q: How do I select the correct SN Series Bearing Housing for my application?

A: To choose the appropriate SN Series Bearing Housing, determine the required bearing series (such as 1200, 2200, 1300, etc.), verify the bore size you need (ranging from 40 mm to 160 mm), and ensure compatibility with the load and environment. Consulting housing numbers (SN204 to SN532) will help match your specific application.

Q: What benefits does the split housing construction provide?

A: The split housing design allows easy access for inspection, maintenance, or replacement of bearings without disconnecting the shaft. This feature significantly reduces downtime and maintenance costs in industrial operations.

Q: Where can SN Series Bearing Housings be used?

A: These housings are ideal for heavy-duty industrial applications, including conveyors, mining, processing plants, and machinery requiring robust, reliable support for rotating shafts. Their versatility and durability make them suitable for a range of industrial sectors.

Q: What kind of bearings are suitable for use with SN Series housings?

A: The SN Series housings are compatible with single-row, pillow block/plummer block bearings from ranges like 1200, 2200, 1300, 2300, 22200, and 22300. Load capacity depends on the specific bearing installed within the housing.

Q: How do the double lip seals benefit bearing longevity?

A: Double lip seals offer enhanced protection against dust, moisture, and other contaminants. This sealing system helps to retain grease lubrication, thereby extending the service interval and overall lifespan of the bearing assembly.

Q: When should I opt for the optional end cover in SN Series Bearing Housings?

A: Choosing the optional end cover is recommended when additional protection from debris or contaminants is needed, especially in particularly harsh environments. It adds another layer of defense for the bearing, further extending operational reliability.

Product Brochure

SN Series Bearing Housing

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Product Details:

Precision Rating Standard / P0
Inner Diameter 40 mm to 160 mm (varies by model)
Retainer Steel
Thickness Varies by housing size
Seals Type Double lip seals
Outer Diameter Varies by model
Lubrication Type Grease Lubrication
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SN Series Bearing Housing Product Specifications

Thickness Varies by housing size
Seals Type Double lip seals
Outer Diameter Varies by model
Precision Rating Standard / P0
Inner Diameter 40 mm to 160 mm (varies by model)
Retainer Steel
Number Of Rows Single row
Lubrication Type Grease Lubrication
Use Heavy-duty industrial applications
Material Cast Iron
Bearing Type Pillow Block / Plummer Block
Bore Size 40 mm to 160 mm
Structure Split housing construction
Load Capacity High (Dependent on bearing fitted)
Cage Material Steel

Suitable Bearing Series 1200, 2200, 1300, 2300, 22200, 22300, etc.
Housing Number SN204 to SN532
Mounting Type Foot mounted
Corrosion Resistance Good
Interchangeability International standard dimensions
Temperature Range -20C to 120C
End Cover Availability Optional
Finish Smooth painted finish

Product Description

SN Series Plummer Blocks

The SMR SN Series is a standard, horizontally split plummer block housing designed for moderate load and speed applications where reliability, ease of maintenance, and cost efficiency are important.

It is a widely accepted housing design used in stable operating conditions where grease lubrication and straightforward installation are sufficient.

What the SN Series Is Best Suited For

The SN Series is typically selected when:

Operating loads and speeds are moderate
The application environment is relatively clean
Grease lubrication is preferred
A proven, uncomplicated housing design is required

This makes the SN Series a practical choice for many general industrial installations.

How the Housing Works

The split construction allows the bearing to be installed, inspected, or replaced without removing the shaft, simplifying both initial installation and routine maintenance.
The housing is designed to provide axial freedom to the bearing, allowing for shaft expansion during operation.
When axial location is required, it can be achieved by fitting one or two locating rings, depending on the application.

Bearings, Lubrication & Sealing

The SN Series is primarily intended for adapter sleeve-mounted spherical roller bearings and is designed for grease lubrication.
Standard felt seals provide basic protection against dust and contaminants, making the series suitable for clean and temperate environments.
Oil lubrication and heavy sealing arrangements are not intended for this series.

Material & Compatibility

SMR SN Series plummer blocks are manufactured from graded cast iron and follow established international dimensional standards, allowing easy interchangeability with standard SN housings. SN series housings can be manufactured in S.G. Iron and Cast Steel if required.

A Simple Selection Note

Choose the SN Series when you need a reliable and economical plummer block for moderate operating conditions.
For higher loads, enhanced sealing, or more demanding environments, SMR offers SNA, SNH, and SNL series housings.

Technical Details

Exact dimensions, shaft sizes, bearing compatibility, and accessory options are provided in the SMR SN Series catalogue.

SMR can assist in confirming the most suitable housing and bearing arrangement for your application.

Technical Details