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Barden Precision Bearings
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Barden Precision Bearings are ball bearings manufactured by the Barden Corporation. The bearings are typically angular contact, miniature or deep groove design. The typical catalogue ball bearings made by Barden are considered ABEC 7 (ISO P4) precision level. Barden predominantly manufactures ball bearings to precision levels of ABEC 7, ABEC 9 (ISO P2), and ABEC 9++, but also has begun manufacturing cylindrical roller bearings. Traditional Barden products are predominantly radial, single row, super precision angular contact (separable and nonseparable) and deep groove ball bearings. Bearings are classified as either instrument or spindle bearings, and are made to ABEC-7 or ABEC-9 specifications. Barden also makes ball screw support bearings, cylindrical roller bearings and double direction angular contact thrust ball bearings. Barden super precision bearings come in inch or metric dimensions with diameters ranging from 3/8" (9.5mm) O.D. up to 15 3/4" (400mm) O.D. A variety of seals, shields and metallic/nonmetallic cage designs and calibration options are available to satisfy most precision bearing requirements. Because of the precision levels and applications that Barden Precision Bearings are used in, availability is limited because of US EAR and ITAR regulations, with many of the bearing products coming under the US Munitions Listings. Additionally, international players of dubious motivations frequently attempt to bypass export restrictions by utilizing unsuspecting distributors of bearings who become unwitting accomplices in violation of export laws. Because of the value and availability of Barden bearings, counterfeiting is not an uncommon occurrence. Although the counterfeit product may be difficult to identify in packaging or in appearance, once placed in the application, because of the low precision of the counterfeit product, performance issues usually surface with the application. The performance usually gives away and readily identifies the counterfeit bearing.
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