Deep Groove Ball Bearings

Deep groove radial ball bearings, also known as the Conrad style, are among the most widely used of all bearing designs. They are found in everything from skateboards to aircraft. Their popularity is due to their ability to handle moderate to high speeds with moderate radial and axial loading. Though its load carrying capacity is not as high as its roller bearing counterparts, it makes up for this by compensating for misalignment. An all-around performer, their high production numbers keep the pricing low.

History: The Conrad style ball bearing is named after its inventor, Robert Conrad, who was awarded British patent 12,206 in 1903 and U.S. patent 822,723 in 1906. A Conrad bearing is assembled by placing the inner race into an eccentric position relative to the outer race, with the two races in contact at one point, resulting in a large gap opposite the point of contact. The balls are inserted via this gap and then evenly distributed around the bearing assembly, causing the races to become concentric. Assembly is completed by fitting a cage to the balls to maintain their positions relative to each other. Absent the cage, the balls would eventually drift out of position during operation, causing the bearing to fail. The cage carries no load and serves only to maintain ball position.

Deep Groove Ball Bearings
	Deep groove radial ball bearings, also known as the Conrad style, are among the most widely used of all bearing designs. They are found in everything from skateboards to aircraft. Their popularity is due to their ability to handle moderate to high speeds with moderate radial and axial loading. Though its load carrying capacity is not as high as its roller bearing counterparts, it makes up for this by compensating for misalignment. An all-around performer, their high production numbers keep the pricing low. History: The Conrad style ball bearing is named after its inventor, Robert Conrad, who was awarded British patent 12,206 in 1903 and U.S. patent 822,723 in 1906. A Conrad bearing is assembled by placing the inner race into an eccentric position relative to the outer race, with the two races in contact at one point, resulting in a large gap opposite the point of contact. The balls are inserted via this gap and then evenly distributed around the bearing assembly, causing the races to become concentric. Assembly is completed by fitting a cage to the balls to maintain their positions relative to each other. Absent the cage, the balls would eventually drift out of position during operation, causing the bearing to fail. The cage carries no load and serves only to maintain ball position.
Miniature	Miniature Deep Groove Ball Bearings

600 Series	600 Series 2-Seals 600 Series 2-Shields
1600 Series	1600 Series 2-Seals 1600 Series 2-Shields

6000 Series	6000 Series 2-Seals 6000 Series 2-Shields
6200 Series	6200 Series 2-Seals 6200 Series 2-Shields

6300 Series	6300 Series 2-Seals 6300 Series 2-Shields