SD Series
The MASTA SD Series consists of heavy-duty, horizontally split plummer blocks designed for large-diameter shafts and extreme operating conditions. These housings are significantly larger and stronger than the standard SN series, making them the primary choice for heavy engineering, mining, and metal-processing industries where equipment reliability is non-negotiable.
Engineering advancements that make the SD Series the smarter, longer-lasting choice.
Full dimensional and performance data for the SD Series.
| Feature | Detail |
|---|---|
| Series | SD Series (Heavy-Duty Split Type) |
| Compatibility | Designed for 3000 and 3100 series large bearings |
| Shaft Sizes | Typically 150 mm to 310 mm and above |
| Lubrication | Optimized for Grease (provisions for nipples included) |
| Best For | Heavy conveyors, crusher shafts, cement mills, and steel plant machinery |
| Criteria | Choose the SNL Series If... | Choose the SD Series If... |
|---|---|---|
| Shaft Diameter | You are dealing with mid-to-large shafts (typically up to 160mm). | You are dealing with very large shafts (typically starting from 150mm up to 310mm+). |
| Load Intensity | The machine carries heavy radial loads but operates at standard industrial stress levels. | The machine carries extreme radial and axial loads (e.g., heavy crushing or grinding). |
| Heat Concerns | The bearing runs hot. The SNL’s ribbed base is specifically designed to dissipate heat and save oil/grease life. | Thermal stability is handled by the sheer mass of the housing; used where strength is more critical than cooling. |
| Mounting Space | You need a more compact, modern footprint that fits standard industrial frames. | You have a heavy-duty foundation that requires a massive, 4-bolt stable base. |
| Sealing Needs | You need variety. Supports Felt, V-Ring, Double-Lip, and Labyrinth seals. | You need maximum durability. Primarily uses Labyrinth seals to prevent grit entry in heavy industries. |
| Application Type | Best for large fans, conveyor pulleys, and standard processing equipment. | Best for Heavy Engineering: Steel mills, cement crushers, and mining excavators. |
| Procurement Goal | You want the modern industry standard for large-scale versatility and cooling. | You want the toughest housing available for the largest, most expensive bearings in the plant. |
The MASTA SN Series is our premier range of horizontally split-type bearing housings. Engineered for durability and ease of installation, these blocks are the ideal solution for industrial applications operating under moderate loads and speeds in temperate environments.
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The MASTA SNA Series is an advanced version of the standard SN series. These horizontally split bearing housings are designed for greater strength and versatility, making them ideal for slightly heavier loads and industrial conveyor applications.
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The MASTA SNH Series represents a major step up in housing technology. While these blocks are horizontally split and fully interchangeable with the SN and SNA series, they feature a significantly more robust design. They are the preferred choice for industrial operations involving high speeds, heavy vibrations, and demanding workloads.
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The MASTA SNL Series is the industry standard for large-scale horizontally split plummer blocks. These housings are specifically engineered to provide maximum service life for large bearings. They are designed to keep lubricants in and contaminants out, ensuring your machinery runs smoothly even in challenging industrial environments.
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The MASTA SNL 3000 and 3100 Series are built for the most demanding, large-capacity industrial applications. These housings are specifically designed to accommodate the largest bearing series, providing a massive and stable foundation for heavy-duty rotating shafts.
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The MASTA SOFN Series represents a specialized range of plummer blocks specifically designed for oil lubrication. These housings are engineered for high-performance applications where grease is insufficient due to high operating speeds or extreme temperatures. The SOFN series is widely utilized in critical equipment like industrial fans, blowers, and high-speed emergency machinery where continuous, reliable lubrication is a necessity.
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The MASTA LOE Series is a specialized range of horizontally split plummer blocks engineered specifically for oil bath lubrication. These housings are designed for large-diameter shafts operating at high speeds where grease would fail due to heat buildup. The LOE series is the industry standard for high-performance equipment that requires a constant, stable oil supply and maximum reliability under continuous operation.
View DetailsOur engineering team will help you select the ideal housing, bearing, and seal combination for your application.
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