NTN 7218AC/DB Bearing

Technical Data. NTN. PRECISION. ROLLING. BEARINGS. Main Spindle. Bearings. Ball Screw Support. Bearings. APPENDIX. NTN PRODUCTS Db. 2. Table 2.9 Fundamental tolerance IT. Classification of nominal dimension mm. Fundamental tolerance IT value μm over incl. 6. 10. 18. 30. 50. 80. 120. 180. 250. 315. 400.

What is the nomenclature for Precision Bearings (P4, P5, Tolerances)?; What is the difference between T D1 or what is the designation for an oil hole? What is the designation for . DB arrangements have a large spread between the bearing centers and should be selected when a rigid shaft is required for the application.