SDG Series (2200,2300,3000,3100,3200,3900,4000,4100)

SDG Series Bearing Housings

Large & Extra Heavy-Duty Plummer Blocks by JAYCO Engineering

JAYCO SDG Series Bearing Housings are specially engineered large and extra heavy-duty Plummer blocks designed for extremely high radial and axial loads, large shaft diameters, and continuous operation in harsh industrial environments. These robust bearing housings are ideal for applications where reliability, strength, and long service life are critical.

Manufactured with precision engineering and advanced machining technology, SDG Series housings are widely used in mining, cement plants, steel mills, crushers, rolling mills, coal handling systems, heavy conveyors, and other demanding industrial applications.

Heavy-Duty Bearing Housing Solutions for Extreme Industrial Applications

The SDG Series is designed to accommodate spherical roller bearings with:

• Adapter Sleeves
• Withdrawal Sleeves
• Cylindrical Bore Bearings

Its versatile design makes it one of the most dependable heavy-duty bearing housing solutions for large rotating equipment and severe-duty operating conditions.

Key Features of SDG Series Bearing Housings

Horizontally Split Heavy-Duty Housing

• Easy installation, assembly, and bearing inspection
• Simplifies maintenance and bearing replacement
• Ideal for very large bearings and shaft assemblies
• Helps reduce downtime during servicing

Reinforced Hollow Base Construction

• Heavy-duty hollow base with central strengthening rib
• Efficient load distribution from multiple directions
• Increased structural rigidity and deformation resistance
• Designed for continuous heavy industrial operation

Secure Mounting & Precise Alignment

• Four elongated foundation bolt holes for strong anchoring
• Machined base pads for accurate wedge alignment
• Provides stable operation under heavy vibration and shock loads

Located & Non-Located Bearing Arrangements

SDG Series bearing housings are available as:

• Located Bearing Units
• Non-Located Bearing Units

The bearing seating width is precisely machined for proper axial positioning. Locating rings are generally not required due to the heavy-duty design configuration.

Advanced Lubrication & Sealing System

Grease Lubrication System

• Standard grease lubrication arrangement
• Initial grease quantity specified for each housing size
• Grease nipple provided for easy relubrication
• Supports reliable long-term bearing performance

Labyrinth & Felt Seal Arrangement

Standard sealing configuration includes:

• TS Type Labyrinth Seal
• FC Type Felt Seal

The specially designed labyrinth seal enhances sealing efficiency and helps protect bearings against:

• Dust
• Moisture
• Industrial contaminants

Alternative Seal Options

FS + TA Seal Arrangement

• Felt Seal with V-Ring option available
• Recommended for plain cylindrical shafts
• Provides additional protection in dusty environments

End Cover & Shaft-End Configurations

• End cover arrangement available for shaft-end applications
• Suitable for through-shaft and shaft-end configurations
• Designed for flexible industrial installation requirements

SDG Series Dimensional Range

JAYCO SDG Series Bearing Housings are available in seven dimensional series:

Available with:

• Adapter Sleeve Bearings
• Withdrawal Sleeve Bearings
• Cylindrical Bore Bearings

Material Options for Heavy-Duty Applications

JAYCO manufactures SDG Series housings in multiple material grades based on application severity:

Graded Cast Iron - FG 220 (IS 210)

Cast Steel - Grade 280-520 (IS 1030)

SG / Ductile Iron - Grade 400/15 (IS 1865)

Product Identification Codes

Housing Material Identification

• SDGC – Cast Iron Housing
• SDGS – Cast Steel Housing
• SDGD – Ductile Iron Housing

Bearing Code Identification

Cylindrical Bore Bearings

Suffix G used in product code

Examples:

• SDGC 2328 G
• SDGS 3044 G

Withdrawal Sleeve Bearings

Suffix D used in product code

Examples:

• SDGC 2328 D
• SDGS 3044 D

This coding system ensures easy product selection and accurate identification.

Typical Industrial Applications

JAYCO SDG Series Bearing Housings are widely used in:

• Metal Mining Industries
• Coal Mining Plants
• Cement Crushers & Grinding Mills
• Steel Plants & Rolling Mills
• Heavy-Duty Conveyors
• Coal Handling Systems
• Large Industrial Drives
• Material Handling Equipment

Made in India – Precision Engineered by JAYCO Engineering India

All SDG Series Bearing Housings are:

• Designed & manufactured in India
• Machined using advanced CNC, VMC & HMC machines
• Produced under strict quality control standards
• Tested for heavy industrial performance
• Supplied to OEMs, EPC companies, and export markets worldwide

Why Industries Trust JAYCO Engineering India

• 12+ years of bearing housing manufacturing expertise
• Specialists in large & custom heavy-duty Plummer blocks
• Multiple bearing, sleeve & sealing configurations available
• Export-quality manufacturing standards
• Strong technical consultation & after-sales support

Looking for SDG Series Drawings, Prices & Custom Designs?

Contact JAYCO Engineering India for:

• Technical consultation
• CAD drawings & dimensional details
• Custom heavy-duty housing designs
• OEM manufacturing support
• Competitive pricing & quotations

JAYCO delivers reliable, precision-engineered heavy-duty bearing housings for the most demanding industrial environments.