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1.types and features of rolling bearings - NSK
DF and DB duplex bearings are capable of taking radial loads and axial loads in either direction. Type DT is used when there is a strong axial load in one direction and it is necessary to impose the load equally on each bearing. Duplex Bearings. Double-row angular contact ball bearings are basically two single-row angular -
+: NSKHPS Bearings. ZZ. Seals, Shields Symbol. ZZ: Shield on Both Side. DDU: Contact Rubber Seal on Both Side. VV: Non-Contact Rubber Sealed on Both Side. CM. Internal Clearance. Symbol. Omitted: CN DB: Back-to-Back Matching/ DF: Face-to-Face Matching/ DT: Tandem Matching. DBD, DFD, DTD: Three-Row
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(Bearing number example) 7 || 0 ||13 C TYN DB LP4. 3). Bearing type symbol Accuracy P4Y: special class (Bore diameter and outside diameter are exclusive to NSK. All others are ISO Class 4) 7oo7C 35 62 14 1.0 0.6 19.1 13.7 9.35 15.0 13.5 0.151 O 23800 36 100 7015C 75 115 20 1. 0.6 48.0 45.5 28.1 15.9 22.7
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NSK SP - Bearing sales Corporation
As a result, NSK's precision bearings are also used in a wide variety of industries, Bearings can be configured in the usual arrangements of DB/DF/DT, as 7015C. 75. 115. 20. 1.1. 0.6. 48.0. 45.5. 28.1. 15.9. 22.7. 0.643. 12 200. 18 500. 7015A5. 75. 115. 20. 1.1. 0.6. 45.5. 43.5. 33.5. −. 32.1. 0.652. 10 600. 15 800. -
Performance Comparison of Each type of Bearing (Bore size–70mm, DB combination, L preload). The Effect of Preload. Preload affects performance of ACBBs in much the same way that the contact angle does. As preload increases, the rigidity increases but the speed capability decreases. NSK has defined standard
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Bearings for Industrial Machinery NSKHPS
NSK is one of the leading companies with a long tradition in patent new NSKHPS fully incorporate the advantages of NSK's worldclass design, materials, (cc). Limiting. Axial. Load. (kN). Preload. (DB,DF Arrange ment) (N). Axial Rigidity. (DB,DF Arrange ment) (N/μm). Starting Torque. (N•m). Bearing. Numbers d. D. B. -
Table 2 | Angular Contact Ball Bearings | Ball Bearing | NSK Global
Figure, Arrangement, Features. Back-to-back (DB) (Example) 7208 A DB. Radial loads and axial loads in both directions can be sustained. Since the distance between the effective load centers a0 is big, this type is suitable if moments are applied. Face-to-face (DF) (Example) 7208 B DF. Radial loads and axial loads in both -
the DB Type. Tandem. (DT). (Example). 7208 A DT. Radial loads and axial loads in one direction can be sustained. Since two bearings share the axial load, this 7015 C. DB DF DT. 78 000. 91 500. 7 950. 9 300. 6 700. 9 500. 45.4. 5.4. —. 110. 0.6. 7215 A. DB DF DT 123 000. 129 000. 12 600 13 100. 4 300. 6 000. 84.2.
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6. Preload and axial displacement - NSK
bearing front faces, and Tandem, with lines of force being parallel. The symbols for these are. DB, DF, and DT arrangements respectively. (Fig. 1). DB and DF arrangement sets can take axial loads in either direction. Since the distance of the load centers of DB bearing set is longer than that of DF bearing set, they are widely.