Shijiazhuang Ruite Pump Co., Ltd. is one of the most reliable manufacturers and suppliers of slurry pump bearing in China. Welcome to wholesale durable slurry pump bearing made in China here from our factory. All pumps are with high quality and competitive price.
Key Advantages
Slurry pumps are used to transport media containing abrasive solid particles (such as mineral slurry, ash, and mortar). The operating conditions for their bearings are extremely harsh, resulting in specific requirements:
High load-carrying capacity
Must withstand the pump's axial and radial forces, as well as unbalanced loads.
High reliability
Must maintain stable operation under vibration, impact, and potential water vapor erosion.
Sealing
Must be equipped with heavy-duty seals to prevent slurry or water from entering the bearing housing, which could lead to grease contamination, bearing corrosion, and wear.
Common Bearing Types and Configurations
The bearing housings of slurry pumps (especially heavy-duty horizontal pumps) typically employ a "locating-non-locating" shaft configuration:
- Drive end: Typically uses cylindrical roller bearings. These primarily bear radial loads and allow for a certain degree of axial thermal expansion of the shaft; this is the "non-locating end."
- Non-drive end: Typically uses paired angular contact ball bearings or double-row tapered roller bearings. These primarily bear residual axial forces and provide axial positioning for the shaft, constituting the "locating end."
Key Considerations for Selection and Maintenance
Grease lubrication
High-quality, water-resistant extreme-pressure lithium-based grease must be used. Grease must be replenished or replaced regularly and in the correct quantity; neither overfilling nor underfilling is permitted.
Oil Lubrication
Used for large, high-speed, or pumps operating under more severe conditions. Pay attention to oil level and oil cleanliness.
Sealing
Inspect the bearing's sealing components to prevent external contaminants from entering.
Common Failures and Causes
- Premature Failure: Common causes include poor lubrication (grease degradation, drying out, excessive or insufficient grease) and seal failure leading to the ingress of abrasive particles.
- Abnormal Heat: This may be caused by excessive grease generating friction heat, or by improper bearing installation (such as excessive preload) or misalignment.
- Vibration and Noise: These are typically signs of bearing wear, flaking (fatigue damage), or cage damage.
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