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    SNLN Series Heavy-Duty Split Plummer Block Bearing Housings (3000 & 3100 Series)

    SNLN Series Heavy-Duty Split Plummer Block Bearing Housings (3000 & 3100 Series)

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    SNLN Series Heavy-Duty Split Plummer Block Bearing Housings (3000 & 3100 Series)
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    Product Description

    The JAYCO SNLN 3000 & 3100 Series Bearing Housings are heavy-duty, reinforced split plummer blocks engineered for large shaft diameters, high bearing loads, and demanding industrial operating conditions. Developed as an advanced extension of the standard SNL range, the SNLN Series provides enhanced structural strength, improved rigidity, and longer service life for heavy industrial applications.

    These housings are widely used in cement plants, steel mills, mining equipment, power plants, conveyors, material handling systems, and other heavy-duty industries where reliable performance under shock loads and continuous operation is essential.

    Design & Construction Features

    Split Housing Design

    • Horizontally split cap and base for easy assembly and maintenance
    • Enables bearing installation and replacement without disturbing shaft alignment
    • Reduces downtime and simplifies servicing in industrial operations

    Reinforced Structural Body

    • Hollow base construction reinforced with two side ribs and one central cross rib
    • Improved load-carrying capacity and structural rigidity
    • Designed to withstand shock loads, vibration, and continuous heavy-duty operation

    Heat Dissipation Design

    • Optimized housing geometry for efficient heat dissipation
    • Maintains stable operating temperature during continuous service

    Bearing & Shaft Compatibility

    SNLN 3000 Series

    • Adapter sleeve bearings: 110 mm to 260 mm shaft diameter
    • Cylindrical bore bearings: 120 mm to 280 mm shaft diameter

    SNLN 3100 Series

    • Extended range designed for larger shaft diameters and higher load applications

    These ranges define the suitable bearing selection limits for the SNLN Series.

    Axial Location & Bearing Arrangement

    • Provision available for axial locating rings for controlled positioning
    • One or two locating rings may be used depending on application requirements
    • Suitable for precise alignment and load management in heavy-duty systems

    Lubrication System

    • Designed exclusively for grease lubrication systems
    • Multiple grease nipple pads provided on the housing cap for efficient relubrication
    • Drain hole and drain plug provided for removal of used grease during maintenance
    • Optimized grease flow ensures consistent bearing performance
    • Provision available for condition monitoring systems (vibration and temperature sensors)

    Sealing Arrangements

    The SNLN Series offers multiple sealing solutions for different operating environments:

    • TC Felt Seal
    • TA Rubber V-Seal
    • TL Four-Lip Seal – suitable for higher speed and medium-heavy applications
    • TS Labyrinth Seal
    • ND Taconite Seal (Radial)
    • TNC Taconite Seal (Axial)

    Taconite seals provide maximum protection in dusty, dirty, and highly contaminated environments, ensuring extended bearing life.

    End Cover & Shaft-End Options

    • End cover provisions available for shaft-end applications
    • End cover identification uses prefix “A” with seal type (e.g., ATA for V-seal with end cover)

    Dimensional Series

    • SNLN 30 Series – suitable for adapter sleeve and cylindrical bore bearings
    • SNLN 31 Series – designed for larger bearing and shaft applications

    Material Options

    To suit different load and environmental requirements, SNLN housings are available in:

    • Graded Cast Iron FG 260 as per IS 210
    • Cast Steel Grade 280–450 as per IS 1030
    • SG (Ductile) Iron Grade 400/15 as per IS 1865

    Material selection is based on load intensity, vibration levels, and operating conditions.

    Foundation & Mounting Features

    • Standard supply includes two foundation slots
    • Optional four-hole drilling available on request for improved rigidity
    • Suitable for high vibration and heavy load applications
    • Enhanced stability in continuous industrial operations

    Standards & Interchangeability

    The SNLN 3000 & 3100 Series conforms to ISO 113:2010 International Standards, ensuring:

    • Global interchangeability
    • Easy replacement and retrofitting
    • Compatibility with international bearing systems

    Typical Applications

    Widely used in:

    • Cement and steel industries
    • Mining and mineral processing
    • Power generation plants
    • Material handling systems
    • Heavy conveyors and crushers
    • Industrial machinery under shock load conditions

    Manufactured in India with Heavy-Duty Engineering Standards

    JAYCO SNLN Series Bearing Housings are designed and manufactured in India using advanced CNC, VMC, and HMC machining technology under strict quality control. Built for demanding industrial environments, the SNLN Series delivers reliable performance, long service life, and superior mechanical strength in heavy-duty applications.




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