Miniature bearings are available in various designs and types, including:

• standard,
• transverseoblique,
• with flange outer ring,
• with elongated inner ring
• bearings with outer rings of wide or thin section
• and many others.

Miniature bearings in metric dimensions have an internal diameter of from 1 mm to 9 mm and an outside diameter of 3 mm to 30 mm. They are open-ended and double-sided. Miniature inch bearings have dimensions of internal diameter. From 0.040 "to 0.750" and outer diameter from 0.125 "to 1.625". They are in open-ended and double-sided cover and with a flange on the outer ring or without. 

Miniature longitudinal bearings with an inside diameter of 2 mm to 10 mm and an outer diameter of 6 mm to 18 mm are equipped with casings or contact or contactless gaskets on one or both sides. For applications requiring higher speed, stiffness or longitudinal loads, miniature angular contact bearings are also available.