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UJK Plummer Block Housings (Pillow Blocks) - SN Series

UJK Plummer Block Housings, also known as pillow blocks, are engineered for heavy-duty applications requiring exceptional strength, reliability, and long service life in the most demanding industrial environments. Renowned for their robust construction and superior sealing, these housings are designed to accommodate self-aligning spherical roller bearings or ball bearings, providing optimal performance even in cases of shaft misalignment.

Our comprehensive range includes the robust SN500 & SN600 series, the split-type SNL series, and the compact SD series, offering a solution for virtually every heavy-load requirement.

Key Features & Benefits:

• Robust Construction: Manufactured from high-quality cast iron (e.g., ASTM Grade 250), UJK housings provide exceptional mechanical strength, impact resistance, and damping properties to withstand heavy radial and axial loads and harsh operating conditions.

• Superior Sealing Technology: Equipped with advanced, multi-component labyrinth seals. These seals are highly effective at excluding contaminants like dust, water, and abrasive particles while effectively retaining lubricant within the bearing, dramatically extending relubrication intervals and service life.

• Self-Alignment Capability: The spherical seating of the bearing within the housing automatically compensates for initial shaft misalignment and minor shaft deflections under load, ensuring smooth operation, reducing stress, and preventing premature bearing failure.

• Ease of Maintenance & Installation: Many models in the SNL series feature a innovative split design, where both the housing and the inner ring can be separated. This allows for easy mounting and dismounting without disturbing other components, significantly reducing maintenance time and costs.

• Universal Interchangeability: Designed to conform to international dimensioning standards (ISO), ensuring perfect interchangeability with other major brands and simplifying procurement and replacement.

• Relubrication Fittings: Fitted with standard grease nipples, allowing for easy routine maintenance and re-lubrication while the equipment is running, ensuring optimal bearing performance at all times.

Primary Housing Series:

• SN500 & SN600 Series: Solid Plummer Blocks
  The industry-standard solid housing design for maximum rigidity and strength. The SN600 series is typically designed for larger bearing sizes and heavier loads than the SN500 series. Ideal for applications where the highest load capacity is paramount.

• SNL Series: Split Plummer Blocks
  This innovative design features a split housing and a split inner ring (bearing). This allows for effortless installation and removal onto fixed shafts, making them the perfect choice for complex machinery layouts (e.g., crankshafts, line shafts) where disassembling adjacent equipment is impractical.

• SD Series: Midsize Plummer Blocks
  A robust yet compact housing solution, designed for applications where space is a constraint but performance cannot be compromised. They offer a excellent balance of size and load-carrying capacity.

Typical Applications:
UJK Plummer Block Housings are indispensable in industries that demand unwavering reliability under extreme loads:

• Mining and Quarrying Equipment (Crushers, Screens, Conveyors)

• Heavy-Duty Conveyor Systems

• Pulp and Paper Manufacturing Machinery

• Cement and Aggregate Processing

• Fans, Blowers, and Large Industrial Gearboxes

• Metal Rolling Mills