NSK 7211C/DB bearing high speed
ANGULAR CONTACT BALL BEARINGS
expected, please consult with NSK for selection of the bearings. TOLERANCES AND RUNNING . ANGULAR CONTACT BALL BEARINGS. SINGLE/MATCHED MOUNTINGS. Bore Diameter 10 – 15 mm. 7900 A5 DB DF DT. 4 700. 2 900. 475. 296 32 000 43 000 13.5. 1.5. —. 20.8 0.15. 7900 C DB DF DT. 4 900. 3 050. 500.
Bearings for Industrial Machinery NSKHPS
NSKHPS – BEARINGS FOR INDUSTRIAL MACHINERY. Boundary Dimensions (mm). Basic Load Ratings (N). Limiting Speed (rpm). Bearing. Numbers d. D. B .. 7211C. 100. 21. 1.5. 1.0. 53.0. 38.0. 13,000. 19,400. 250. 490. 1,210. 2,390. 7211A5. 100. 21. 1.5. 1.0. 51.0. 37.0. 9,700. 13,000. 50. 490. 1,720. 2,630. 7211A.
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
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.
H-2. SUPER PRECISION BEARINGS. Description. Interchange. NSK. *OLD NSK. SKF. FAG. BARDEN. OLD BARDEN FAF/TIMKEN. SNFA. NTN. P art No Bearing. Number. Basic Bearing Dimensions. Preferred Shoulder Dimensions d. D. B da min. Da max. *Db max ra max. *rb max mm inch mm inch mm inch inch inch.
BEARING DESIGNATION SYSTEMS
of bearings. Since then, NSK has been distributing bearings using the NSK and. RHP brand names. In some cases, the two brands' bearings use different .. Axial clearance in the case of face-to-face or back-to-back arrangements (W: see 3.4 'Cage type'), example: 7210 BG, 7206 BWG. DB*. DB*. Pair of bearings in a