F.R.B. face drivers work by a patented compensating system, operated
by wedge lever, which allows four-pin driving. This system is highly
adjustable and ensures safe and reliable torque transmission under
the most difficult conditions; such as rough surfaces or obliqueness of
end faces by as much as 3 mm in relation to the rotation axis.
The center is independent of the driving pins and rests against a
belleville spring washer assembly lodged inside the Morse taper.
Even with varying center sizes, work positioning is maintained with
The center point can be easily removed. There is no need to remove
the face driver from the machine tool. The interchangeability of
centers with slots enables turning even of workpieces with holes in
the end piece.
The superior driving efficiency of the F.R.B. face drivers means that
the full state-of-the-art performance of even the most advanced
machine tools can be fully exploited.
All F.R.B. face drivers use a wedge lever compensating system.
The driver consists of these components:
1) Wedge lever assembly
2) Wedge lever support pin
3) Support pin base
4) Balancing plates
6) Driving pins
7) Driving pins support washer
8) Driving pins retaining screw
9) Center point
10) Belleville spring washer assembly
11) Center point support cylinder
12) Face driver body