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The meaning of the suffix letters of ball screw support bearings

by:JNSN     2021-12-16
TAB series features ● This kind of bearing adopts polyamide cage, and the number of steel balls is more than that of ordinary angular contact ball bearings. Therefore, the rigidity of the bearing is higher than that of ordinary bearings. ● This kind of bearing has preset preload, so it is easy to install, no need to measure the installation torque. ● This kind of bearing has a contact angle of 60°C and can bear radial and axial loads at the same time. The structure of the shaft and the bearing seat can be simplified. ● Bearings with seals are equipped with contact seals and non-contact seals. The appropriate one can be selected according to the application. The contact angle is 6 as the standard. The cage is ball-oriented, and the cage made of polyamide resin is the standard. Accuracy is based on JIS4 level. For detailed data, please refer to page 10. The composition of the ball screw support bearing model. Example model: 30TAB06DB -2LR /GM P4 30u003dInner diameter size (mm) TABu003dBearing type code 06u003dOuter diameter size code The value of the outer diameter size divided by 10 DBu003dAssembly code U: Free assembly (single row) DU: Free assembly (double row assembly) DB: back-to-back assembly DF: face-to-face assembly 2LR u003d seal code not marked: open type-2LR: double-sided contact seal-2NK: double-sided non-contact seal P4 u003d accuracy grade code P4: Equivalent to JIS Class 4 (standard) GLu003dPreload grade code/GM: Medium preload (standard) The preload is based on the medium preload. Please refer to page 20. Load and Displacement Line Graph Ball Screw Support Bearing This bearing is used to support the ball screw, which is the transmission mechanism of high-precision, high-speed machine tools, precision measuring equipment, and robots. This is a high-precision, high-performance bearing.
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