Thin-section bearings have small cross-sections with respect to their diameter. Thin-section bearings are designed to save space, lower the weight of a design and reduce friction. Thin and extra thin-section bearings are available in inch or metric sizes and in chrome or stainless steel. These ranges are also available with cages for high-speed applications, and with extended inner rings. Thin-section bearings are manufactured to industry standard sizes. The bearing widths and distance from bore to outside diameter remains constant regardless of the change in bore diameter.