Angular contact ball bearing outer ring bearing, while thick, while thin. Thick side referred to as "back", referred to as thin side "face." Two combinations: DB portfolio: back to back combinations. High stability, can improve the rigidity of the bearing. DF combination: a combination of face to face. Applies to the long axis, to allow a certain deflection. DT combination: a series combination of (a bearing of the "back" and "face" of a combination of the other bearing). Make a single direction axial bearing axial doubled. Combination of three columns and four rows of combination is based on a combination of the two columns, make up less than two columns portfolio (mostly less than the axial load areas) and combinations produced. For example: DB combined in a single axial direction of the need for greater axial load, you need to add a column next to the bearing, consisting of a combination of three columns. If the axial load in both directions need to increase Greeting monopoly engraving machine bearings, each side will need to add an engraving machine bearing lid Longgang 7005, consisting of a combination of four columns. Some common combinations see (below)! Another: bearing manufacturers are producing all kinds of combinations of good bearing, and a single universal bearings. Features 1, universally matchable bearings universally matchable bearings are specially processed Greeting engraving machine bearings, when the bearing is installed close to each other, any combination can achieve the established internal clearance or preload, and the average load distribution, without the use of shims or the like. Paired bearings in: When insufficient load carrying capacity of a single bearing (using channeling associated configuration) or when to bear the combined load or the axial load in both directions (using back to back or face to face configuration). Greeting monopoly engraving machine bearings _ Shun GF bearing Electrical (certified) _ bearing provided by Shenzhen-GF bearing Electrical Co., Ltd.. Shenzhen City, Guangdong Development bearing Electrical Co., Ltd. (www.sgfzc.com) (www.sgfzc.com) is Shenzhen, the other leaders over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In bearing Electrical leadership Shun GF staff warmly welcome all inquiries negotiations to create Shun GF bearing Electrical better future. You can also access (www.sgfzc.com/supply_details_42650480.html), for more information about the company.