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56mm Flanged Light Series 20 (External Gear)

FEG Series (Flanged External Gear)

A popular series of slewing rings manufactured by most manufacturers and used in a variety of simple mechanical handling devices where rotation is effected by the addition of an external metric spur gear.

These bearings can generally be considered interchangeable but there can be differences in precision calss (internal clearance), the addition of high precision pilot diameters and the number of bolt holes. High speed bearings can have a cage to ensure optimum ball separation.

The standard NBC stock units can be considered suitable for all standard industrial applications. Zinc plating, black oxide coatings, painting or even Nylon coatings can be offered on request.

Download the full FEG Series datasheet. or individual  PDF drawings

FEG 505 20 / FEG 650 20 / FEG 750 20 / FEG 850 20 / FEG 950 20 / FEG 1050 20 / FEG 1200 20



* - suffices dependent on final bearing specification e.g FEG 650 20 51 CC LM

Fzn = Gear force Normal; Fzm = Gear force Maximum

All bearings manufactured in C45 steel (European) or 50Mn (China), roughly equivalent to BS 080M46
All bearings supplied with 4 grease points in the inner ring only, DIN 71412A M8x1 equispaced

Bearings can be supplied with hardened gear  to order.

Load and bolt limit curves

If there are both radial and axial loads acting on the bearing, these need to be converted to a single equivalent load to enable accurate graphical analysis. Bearings should operate within the prescribed triangular area at all times.

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 table offers generally accepted interchange numbers. However as variations exist all queries should be referred to our Technical Department for analysis.

Dimensional equivalance does not always imply equal performance.
  

* - suffices dependent on final bearing specification. This information subject to change without notice.

For professional assistance 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

Whilst every effort has been made to ensure the accuracy of the information on this website, if you spot a mistake please inform the webmaster@nbcgroup.co.uk. Thanks!