7001 Radial ball bearings : NTN-SNR, Ball bearings manufacturer
7001 Radial ball bearings on NTN-SNR catalog, Ball bearings manufacturer for Single row or matched pairs of angular contact ball bearings market.
ity and extra capacity. There are three fundamental combinations in duplex bearings: face-to-face (DF), back-to-back (DB), and tan- dem (DT). DF. DB. DT. SINGLE DIRECTION THRUST BEARINGS consist of two washers having ball grooves ground into their adja- cent faces with balls and cages mounted between these.
a. (approx.) ra ra φda. φDa a. 2B. B φd. φD r1 r r1 r a a a. Single. Back-to-back arrangement. (DB). Face-to-face arrangement. (DF). Tandem arrangement. (DT) .. 7311B. 52. 1.42. ○ Single and Duplex Angular Contact Ball Bearings. 1）This value achieved with machined cages; when pressed cages are used, 80% of this
High speed angular contact ball bearings. SF: Special single row angular contact ball bearings. DE & DF: Special double row angular contact ball bearings. 3. . 7311B. 2.1654 4.7244 1.1417 0.079 0.039. 2.05 17,700 12,800 5,500 7,300. 3.13. 4,500. 5,900. 55. 120. 29. 2. 1. 52. 7312B. 2.3622 5.1181 1.2205 0.083 0.043.