Precision Rolling Bearings CAT.No. 2260-VIII/E Precision Rolling Bearings ⓒ NTN Corporation 2019 AE65 CAT. No. 2260-VIII/E 19. 06. 01 SC/NI

C O N T E N T S 1. Classification of Precision Rolling Bearings for Machine Tools ……………… 2 2. Bearing Selection and Shaft & Housing Design…………………………………… 5 Technical Data NTN PRECISION ROLLING BEARINGS 3. Load Rating and Life ……………………………………………………………………16 4. Allowable Speed …………………………………………………………………………21 5. Bearing Arrangements and Structures of Bearings for Main Spindles ………22 6. Handling of Bearings ……………………………………………………………………27 7. Lubrication of Bearings ………………………………………………………………39 8. New Technologies ………………………………………………………………………48 Main Spindle Bearings Ball Screw Support Bearings 9. Angular Contact...

C O N T E N T S 1. Classification of Precision Rolling Bearings for Machine Tools ……………… 2 2. Bearing Selection and Shaft & Housing Design…………………………………… 5 Technical Data NTN PRECISION ROLLING BEARINGS 3. Load Rating and Life ……………………………………………………………………16 4. Allowable Speed …………………………………………………………………………21 5. Bearing Arrangements and Structures of Bearings for Main Spindles ………22 6. Handling of Bearings ……………………………………………………………………27 7. Lubrication of Bearings ………………………………………………………………39 8. New Technologies ………………………………………………………………………48 Main Spindle Bearings Ball Screw Support Bearings 9. Angular Contact...

Warranty NTN warrants, to the original purchaser only, that the delivered product which is the subject of this sale (a) will conform to drawings and specifications mutually established in writing as applicable to the contract, and (b) be free from defects in material or fabrication. The duration of this warranty is one year from date of delivery. If the buyer discovers within this period a failure of the product to conform to drawings or specifications, or a defect in material or fabrication, it must promptly notify NTN in writing. In no event shall such notification be received by NTN later...

Precision Rolling Bearings Page TECHNICAL DATA CONTENTS 1. Classification of Precision Rolling Bearings for Machine Tools …2∼4 q Main spindle bearings …………………………………………………………… 2 w Ball screw support bearings ……………………………………………………… 4 2. Bearing Selection and Shaft & Housing Design ………………………5∼15 q Bearing selection ……………………………………………………………………5 w Bearing accuracy ……………………………………………………………………7 e Bearings and rigidity ………………………………………………………………11 r Designing bearing and housing …………………………………………………14 3. Load Rating and Life …………………………………………………………16∼21 q Bearing life …………………………………………………………………………16 w Static...