Deep Groove Ball Bearings Buying Guide
Last Updated on October 15, 2024
What are Deep Groove Ball Bearings (DGBB)?
Deep Groove Ball Bearing or DGBB is one of the most opted for Ball bearings in the market. For applications in heavy industries and high precision apparatus, it is the Deep Groove Ball Bearings which provides a larger area of contact to deliver high-performance along with high load capacity. Deep Groove Ball Bearings have a two-fold application-
- Providing rotational motion between a stationary and a rotating part
- Supporting radial and axial loads
Different Types of Deep Groove Ball Bearings:
- Open Type
- Shielded Type
- Sealed Type (Non-Contact)
- Expansion Compensating Bearing
Typical construction of DGBB (Deep Groove Ball Bearings)
Components in a DGBB-
- Inner Ring
- Outer Ring
- Steel Balls
- Cage
A DGBB is made up of 2 rings- inner ring and an outer ring. There are grooves cut into both the rings, so that the bearing assembly can take up radial and axial loads.
To place the steel balls evenly around the rings, there is a plastic / metallic cage to hold them in position.
Tips to select the right Deep Groove Ball Bearings
There are certain features that you must take into consideration to decide the right Deep Groove Ball Bearings. You can refer to the product description page for the features of a product or you can sort your search to find just the Ball-bearing you are looking out for which includes:
- Available Space
- Misalignment
- Precision and stiffness
- Speed
- Operating temperature
- Vibration levels
- Contamination levels
- Lubrication type and method
Besides the Above mentioned features make sure to check out the Load Rating of Deep Groove Ball Bearing. Following load ratings need to be considered while selecting a bearing-
Dynamic Load Rating- This is considered for the bearings that are dynamically loaded or rotating under load. It is however assumed that the load is constant in magnitude and direction. It corresponds to the bearing load that the bearing can sustain for a rated life of 1,000,000 revolutions
Static Load Rating- This corresponds to a calculated contact stress at the center of most loaded rolling element / raceway contact which is approx. 0.0001 of the rolling element diameter. Static Load Rating is considered for very slow rotational speeds, very slow oscillating movements, stationary bearings for extended periods
Applications of Deep Groove Ball Bearing
These bearings are quite versatile and used in high and very high speeds, robust in operation, requires little maintenance, simple in design and non-separable.
- Gearboxes
- Instruments
- Motors
- Pumps
- Household Appliances
- Internal Combustion engines
- Agriculture Machinery
- Construction Machinery
- Engineering Machinery
Operating Life of a Bearing:
The Life of a bearing is dependent upon the number of revolutions or the number of operating hours at a given speed that the bearing can withstand before the metal fatigue occurs. The metal fatigue can occur on the raceway of inner or outer ring or on the rolling element.
The general reasons that contribute towards failure of a bearing are abrasive wear, moisture, improper mounting, corrosion, improper shaft/housing fits, skidding of rolling elements, and failure due to lubrication systems.
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