A sleeve bearing would typically be used in a motor that:

A sleeve bearing would typically be used in a motor that:

• A. Operates with a light load and where noise is a factor.
• B. Operates with a heavy load and where noise is not a factor.
• C. Operates with a heavy load in a dirty atmosphere.
• D. Operates with a heavy load in a moist atmosphere.

Answer: (A)

Sleeve bearings are plain sliding bearings that operate quietly because there are no rolling elements to generate noise. They work best under light to moderate loads and rely on a lubricating film to keep surfaces apart, which minimizes friction and vibration. This makes them a good match for a motor where light loading and quiet, low-noise operation are priorities. Under heavy loads, the contact stress on the bearing surfaces increases, leading to faster wear and potential failure, which is why sleeve bearings aren’t ideal for high-load applications. They’re also more vulnerable to contamination or moisture, which can disrupt lubrication and accelerate wear. So, for a motor that runs with a light load and where noise reduction is important, a sleeve bearing is the suitable choice.

Sleeve bearings are plain sliding bearings that operate quietly because there are no rolling elements to generate noise. They work best under light to moderate loads and rely on a lubricating film to keep surfaces apart, which minimizes friction and vibration. This makes them a good match for a motor where light loading and quiet, low-noise operation are priorities. Under heavy loads, the contact stress on the bearing surfaces increases, leading to faster wear and potential failure, which is why sleeve bearings aren’t ideal for high-load applications. They’re also more vulnerable to contamination or moisture, which can disrupt lubrication and accelerate wear. So, for a motor that runs with a light load and where noise reduction is important, a sleeve bearing is the suitable choice.