Split Bearing Housings
Plummer Block Housings
Engineered for heavy-duty applications and ease of maintenance, our Plummer Blocks feature a split-design architecture that simplifies bearing installation and inspection. Cast in our in-house foundry using high-grade Gray Iron, SG Iron, or Cast Steel, these housings are built to withstand extreme radial and axial loads while keeping your operations running smoothly.
Availability: Custom engineered to any size or dimension to fit standard or specialized industrial bearings.
Sealing options: Labyrinth, taconite or felt seals. View sealing arrangements
Standard Split Plummer Block Housings
SN Series
- High Versatility: The industry-standard choice for everyday industrial operations.
- Cost-Effective Design: A simple two-piece split housing allows easy mounting and dismounting of pre-assembled shafts.
- Adaptable Lubrication: Designed primarily for grease lubrication, with pre-cast markings for adding grease nipples.
The MBM SN Housing Advantage
- Superior material gradeCast iron grades 220 to 260.
- Reinforced, rigid base with extra rib holdingsThe reinforced base offers high load-carrying capacity. The extra ribs give a greater ability to withstand sudden or shock loads, ensuring long bearing life.
- Increased bottom contact areaProvides more uniform load distribution and greater stability. Together with the additional reinforced ribs, it improves heat dissipation and vibration damping. Heat and vibration are absorbed and passed on to the foundation underneath, so the bearings last longer.
Advanced Split Plummer Block Housings
SNL Series
- Superior Heat Dissipation: Additional ribs in the housing base pull heat away from the bearing, drastically extending lubricant life.
- Enhanced Rigidity: A stronger base design reduces the risk of housing deformation under heavy, over-tightened mounting bolts.
- Oil or Grease Compatible: Designed to accommodate both grease and oil lubrication without modification.
- Smart Maintenance: Standard oil drainage holes and pre-drilled positions for condition-monitoring sensors.
Heavy-Duty Large Split Plummer Block Housings
SD Series
- Extreme Load Capacity: Built for large-diameter shafts and heavy-duty industrial machinery such as mining, conveyor pulleys and wind turbines.
- Robust Material Options: Available in heavy cast iron or spheroidal graphite (ductile) iron for maximum impact resistance.
- Optimal Alignment: The split structure simplifies the alignment and maintenance of massive, heavy industrial shafts.
- Rugged Sealing: Typically fitted with robust labyrinth seals to withstand highly abrasive, dusty or outdoor environments.
Drop-In Interchangeable Housings
SSNUV Series
- The “Best of Both Worlds” Design: Bridges the footprint gaps between different manufacturer standards, combining elements of standard SN / SSN dimensions with the modular component flexibility of SNU / SNV. This makes it ideal for dropping into existing machinery without reworking the mounting base.
- V-Suffix Optimization: The “V” suffix denotes a variant with integrated V-ring seals and predefined grease/oil relief and drainage discharge ports. This actively forces old, contaminated grease out of the housing during relubrication, preventing seal blowout.
- Uncompromising Base Strength: As a heavy-duty “SSN” variant, these blocks have reinforced bases that prevent housing deformation or cracking when torqued down for high-vibration operation.
- Universal Component Compatibility: Built on a modular concept, a single housing size can accommodate self-aligning ball bearings or spherical roller bearings on plain or stepped cylindrical shafts via adapter sleeves.
- Target Applications: Widely used in heavy mechanical engineering where drop-in size interchangeability is critical, such as industrial fans, blower units, conveyor belt head pulleys and municipal water pumps.
Need a specific series or size?
Tell us the series, shaft size and quantity, or send a drawing. Any size. Any quantity.