Product Details
The IKO shell type needle roller bearing, part# BA1112ZOH, features a bore of 11/16 inch, an outer diameter of 7/8 inch, and a width of .750 inches. This bearing, often referred to as a drawn cup, consists of an outer ring made from accurately drawn thin special steel plate, needle rollers, and may include a retainer. Known for having the smallest sectional height and weight among all needle roller bearings, it also offers relatively high load ratings. The option for a needle roller bearing with a retainer allows for high-speed applications, as the retainer and thrust ring effectively guide the rollers. It is important to note that these bearings do not come pre-packed with lubricant, necessitating proper lubrication during use. Shell type needle roller bearings are typically utilized with shafts that lack inner rings, with recommendations of a shaft surface finish of 0.2 µmRa or less and a hardness of HRC 58 to 64; if these criteria cannot be met, the use of IKO inner rings is advised. The accuracy of the outer ring must be taken into account, as it cannot avoid deformation from heat treatment due to its thin cross-section, thus direct measurements on the outer ring are not appropriate. Standard mounting dimensions should be used for shaft and housing diameters, with an outer ring width tolerance of +0 to -0.20 mm.
