Introduction:
Sleeve bearings are the unsung heroes of countless rotating machines, providing silent operation, affordability, and extended lifespans. These bearings are cylindrical components that wrap around a rotating shaft, maintaining a close-running clearance to facilitate movement with minimal friction.
Type | Description | Advantages | Disadvantages |
---|---|---|---|
Oil-Lubricated | Oil is used as the lubricant, creating an oil wedge between the shaft and bearing | Low friction and wear | Needs constant oil supply |
Water-Lubricated | Water is used as the lubricant, typically in low-speed applications | Corrosion resistance | Less load capacity than oil-lubricated |
Type | Description | Advantages | Disadvantages |
---|---|---|---|
Polymer-Lined | A polymer layer on the bearing surface provides lubrication | Maintenance-free and low friction | Limited load capacity |
Metal-Powder | Porous metal powder sintered into the bearing provides oil storage | Self-lubricating and durable | Higher cost |
Sleeve bearings are extensively used in various industries, including:
Q: What is the difference between sleeve bearings and ball bearings?
A: Sleeve bearings have a continuous cylindrical surface that wraps around the shaft, while ball bearings use rolling elements to reduce friction.
Q: How do I lubricate sleeve bearings?
A: Lubrication methods vary depending on the type of sleeve bearing. Refer to manufacturer recommendations for specific guidelines.
Q: What are the common problems associated with sleeve bearings?
A: Insufficient lubrication, excessive clearance, and material wear are common issues that can affect sleeve bearing performance.
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