A pillow block bearing is a pedestal that provides a low-friction environment for rotating equipment. These bearings are often used in places with little clearance. They are referred to as pillow-block-bearings because the top of the pedestal looks like a pillow. It comprises four parts: the inner ring, the outer ring, the ball, and an oil sump. The ball is made out of steel. It holds the oil inside of it before it travels to the bearing. Here are some facts and information about pillow-block-bearings assembly.
1. How Long Do Pillow Block Bearings Last?
The lifespan of pillow-block-bearings is dependent on several factors. The bearing life depends on the quality of the components. Also, during normal use, periodic maintenance is needed to avoid premature wear. The life expectancy for pillow-block-bearings is estimated at 300,000 hours (conditions such as vibration and environment are essential factors in determining the life expectancy). Although this may be generous, many types will probably outlive their design limit before they show any signs of wearing out.
2. How to Change a Pillow Block Bearing?
Replacing a pillow-block-bearing is not be that difficult. To replace a pillow block bearing the pedestal, depending on the size will have to be separated from the housing. The bottom pedestal is removed by unscrewing or unbolting it and then lifting it away from the housing. If an alignment device or lock pin is present, it may have to be removed before pulling off the pedestal. A new one will have to be installed, and in some cases, it might need to be fitted in place with a hammer.
3. How Much Weight Can a Pillow Block Bearing Hold?
The weight-bearing capacity of a pillow block bearing is dependent on the size. The larger sizes of pillow block bearings will be able to handle increments of up to 10,000 pounds. If this isn’t sufficient, there are bigger sizes which will have larger weight capacities.
4. How Often Should a Pillow Block Bearing Be Greased?
A pillow block bearing should be greased every month. Greasing a pillow block bearing will keep it in proper working order and minimize the possibility of damage. This will be especially important if the bearing is exposed to harsh environmental conditions such as high temperature or high humidity.
5. Which Bearing Type Is the Most Recommended?
Angular contact bearings are the most recommended type for pillow-block-bearings. The head of the bearing is stationary while its body rotates to force a shaft attached to it. The shaft might be rigid or flexible. These bearings are known for their extremely long lifespan and low operating temperatures.
The market for pillow block bearings is vast. There are many types and sizes of these bearings available. It is essential to look for a certified supplier to ensure you are getting a quality product and that the pillow-block-bearings will meet your needs. Also, ensure you can operate the pillow-block-bearings properly. It requires maintenance and care to ensure it is working properly.