Bracket and Lubrication Options for Double Suction Split Case Pumps
The double suction split case pump relies on a well-engineered bracket system to maintain stability, support the rotor, and ensure long-term operational efficiency. Brackets are available in several configurations—thin oil lubrication, grease lubrication, and barrel brackets—each designed to meet different application and performance requirements. This article explains the design features, component structures, and selection criteria to help you choose the most suitable bracket system for your double suction split case pump.
1. Thin Oil Lubrication Bracket
The thin oil lubrication bracket is widely used in double suction split case pumps that operate under high load or continuous duty conditions. Its design reduces friction and dissipates heat effectively, ensuring stable performance in demanding environments.
Key Components
Bracket body and cover
Shaft
Bearing box and bearings
Bearing gland
Retaining sleeve
Lock nut
Oil seal
Water retaining plate
Dismantling ring
Application Advantages
Excellent cooling and lubrication
Suitable for continuous operation
Reduced bearing wear and vibration
Ideal for medium to large pumps running at higher power levels
2. Grease Lubrication Bracket
The grease lubrication bracket differs from the thin oil type by simplifying its structure and maintenance. Instead of circulating oil, grease is applied directly to the bearings.
Key Structural Differences
Transparent inspection cover
Lubrication cup
Eliminates water cooling device
When to Choose This Type
Applications requiring low-maintenance operation
Environments where oil systems are impractical
Pumps with moderate performance requirements
This bracket maintains adequate lubrication while offering easier upkeep, making it suitable for less demanding industrial conditions.
3. Barrel Bracket (For Low-Power Pumps)
Barrel brackets, also grease-lubricated, are designed specifically for smaller double suction split case pumps—typically 200ZJ and below.
Main Components
Bracket body
Bearing housing
Shaft
Bearings
Bearing top sleeve
Bearing gland
Oil seal
Oil cup
Water retaining plate
Dismantling ring
Available Specifications
T200ZJ-I-A70
T200ZJ-I-A60
T150ZJ-I-A60
Barrel brackets offer a compact and reliable solution where power demands are lower and operational loads are moderate.
4. How to Select the Right Bracket for Your Double Suction Split Case Pump
Choosing the correct bracket type directly impacts the pump’s service life, vibration level, and maintenance requirements. Consider the following principles:
Thin Oil Lubrication Bracket
Best for high-performance or continuous operation
Superior cooling and bearing protection
Ideal for large, high-power double suction split case pumps
Grease Lubrication Bracket
Simplified structure and easier maintenance
Suitable for medium-duty applications
Recommended when oil circulation systems are not practical
Barrel Bracket
Designed for small pumps with lower power
Cost-effective and reliable for light to moderate applications
Conclusion
Understanding the differences between thin oil, grease, and barrel brackets helps ensure your double suction split case pump operates with maximum stability, efficiency, and durability. By selecting the correct bracket type based on load conditions, power requirements, and maintenance preferences, you can significantly enhance pump reliability and reduce long-term operational costs.
