NTN 71920C/DB Bearing

71920C/DB | NTN Bearings | Frequently Asked Questions
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  • Frequently Asked Questions | NTN Bearing

    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.
  • Precision Rolling Bearings - NTN 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.