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Split Plummer Block Housings

A Split Plummer Block Housing is a type of bearing housing designed to support rotating shafts in industrial machinery. Its “split” design (two halves) allows for easy installation, maintenance, and replacement of bearings without disassembling the entire shaft system. These housings are commonly paired with spherical roller bearings or ball bearings.

ZMS supplies split plummer block bearings in high quality and export widely to USA, Europe, Japan, Africa and so on.

We offer fully assembled kits including the Split Housing, Spherical Roller Bearing, Adapter Sleeve, Locating Rings, and Seals. 100% compatible with SKF/FAG standards. Drop-in replacement guaranteed.

– SN500 series, SSN500 series
– SN600 series, SSN600 series
– SNL 500series
– SN200 series
– SN300 series
– SNU500 series, SNG500 series
– S3000K series
– SD3000series
– SD3100 series
– SD500 series
– SN3000 series
– SAF500 series, SAF600 series, FCM500 series

Split Design

Two-part housing bolted together, enabling quick access to bearings.
Reduces downtime during maintenance or replacement.

Corrosion Resistance

Typically made from cast iron (gray iron or ductile iron) for durability.
Stainless steel or coated variants for corrosive environments.

Non-Magnetic

Base-mounted with bolt holes for secure attachment to machinery.
Self-aligning capabilities to accommodate minor shaft misalignment.

Feature

Supports spherical roller bearings, deep groove ball bearings, or tapered roller bearings.
Available in standard sizes (metric or imperial shaft diameters).

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High-Quality Manufacturing Standards

• Premium Materials: Use of graded cast iron ( GG25/G2500) or ductile iron for superior strength and wear resistance.
• Precision Engineering: CNC machining ensures tight tolerances (±0.02mm) for perfect bearing alignment and reduced vibration.
• Certifications: Compliance with ISO 9001, CE, or industry-specific standards (mining, agriculture) to guarantee reliability.

Applications

Conveyor Systems
• Used in mining, material handling, and manufacturing to support rotating shafts in conveyor belts. Their split design allows for easy bearing replacement without disassembling the entire system.

Industrial Fans and Blowers
• Support high-speed shafts in ventilation, cooling, or exhaust systems. The split housing simplifies maintenance in hard-to-reach locations.

Mining and Heavy Machinery
• Found in crushers, screens, and excavators to handle shock loads, vibration, and harsh environments. Spherical roller bearings in split housings absorb misalignment.

Power Transmission Systems
• Used in gearboxes, driveshafts, and pulley systems to support rotating components. Ideal for applications requiring precise alignment adjustments.

Pulp and Paper Industry
• Withstand moisture, chemicals, and high loads in paper mills. Corrosion-resistant materials (e.g., cast iron or stainless steel) are often used.
Steel and Metal Processing
• Support rollers in rolling mills, furnaces, and cranes. Designed to endure high temperatures and heavy radial/axial loads.

Agricultural Equipment
• Used in tractors, harvesters, and irrigation systems to handle dusty, abrasive conditions. Easy maintenance is critical in remote farming operations.

Marine and Offshore Applications
• Support propeller shafts, pumps, and winches. Split housings with corrosion-resistant coatings or materials are essential for saltwater environments.

Cement and Construction Machinery
• Found in mixers, crushers, and kilns to handle abrasive dust and extreme loads. Robust construction ensures longevity in harsh conditions.
Wind Turbines
• Support generator shafts and yaw systems. Split housings enable easier servicing of turbines without disassembling large components.

Customization Flexibility

• Tailored Solutions: Ability to produce non-standard sizes, special bore diameters, or unique mounting configurations.
• Material Options: Stainless steel, corrosion-resistant coatings, or heat-treated variants for harsh environments (e.g., marine, chemical plants).

Cost-Effective Pricing

• Competitive Rates: Lower production costs in China without compromising quality, offering better value than European/American brands.
• Bulk Order Discounts: Attractive pricing for large-volume purchases.
• Reduced Lead Times: Streamlined supply chain and in-house production ensure faster delivery (30-50 days).

Technical Expertise & Support

• Engineering Assistance: Free consultation on housing selection, bearing compatibility, or load calculations.
• Installation Guidance: Provide step-by-step manuals, CAD drawings, or video tutorials.
• After-Sales Service: Warranty (12months) and responsive troubleshooting for defects or performance issues.

Factory View

Frequently Asked Question

What is the difference between a plummer block and a pillow block?

Functionally, they are very similar. The distinction is primarily regional and standard-based. Plummer block is the term predominantly used in Europe and Asia, typically referring to housings that comply with ISO standards (like the SNL series). Pillow block is more commonly used in North America, often referring to housings built to ABMA standards (like the SAF series).

What types of bearings can be used in a split plummer block housing?

Split plummer block housings are designed to accommodate self-aligning bearings, which can compensate for shaft misalignment. The most common types installed in these housings are spherical roller bearings (for heavy loads) and self-aligning ball bearings (for lighter loads and higher speeds), usually mounted using an adapter sleeve on a straight shaft.

Why choose a “split” housing design over a solid housing?

The primary advantage of a split housing (where the cap can be removed from the base) is ease of maintenance. It allows engineers to inspect, lubricate, or entirely replace the bearing and seals without having to remove the housing base from its mounting surface or slide the entire assembly off the end of the shaft, drastically reducing equipment downtime.

Understanding Split Plummer Block Housings

Bearing Housing Installation Guide

Pillow Block Bearings