56mm Solid Light Series 20 (External gear)
SEG 20 Series (Solid External Gear)
Download the full SEG20 Series External Gear datasheet
Diagram illustrates bearing with location diameters which are NOT a standard feature on all bearings.
Full part reference dependent on final specification e.g. SEG 505 20 51 CC LM
Fzn = Gear force Normal; Fzm = Gear force Maximum
Bearings usually manufactured in C45 steel (Europe) or 50Mn (China), roughly equivalent to BS 080M46. 42CrMo4 bearings to order.
Bearings usually supplied with 4 grease points in the inner ring only, DIN 71412A M8x1 equispaced,. Variations exist!
Load and bolt limit curves
Bearings should operate within the prescribed triangular load area at all times. If a combination of axial and radial loads act on the bearing they should be converted to a single equivalent load for graphical analysis.
The bolt limit curve is based on the use of Grade 8.8 bolts. An improvement to this can be achieved by using Grade 10.9 bolts, but only after approval of the NBC Technical Department.
If the load is suspended, or the axis of rotation is not vertical, refer application details to slewingrings@nbcgroup.co.uk
Units: Y-Axis = moment load in KN.m; X-Axis = Axial load in KN
Interchange information
This information offers generally accepted interchange numbers. However, variations exist and all queries should be referred to our Technical Department for analysis. Dimensional equivalence does not always imply equal performance!
Full NBC part reference dependent on final specification e.g. SEG 505 20 51 CC LM.
This information subject to change without notice.
Contact the NBC Slewing ring experts by phone on +44 (0)1952 222300, by fax on +44 (0)1952 242938 or e-mail slewingrings@nbcgroup.co.uk