locking assemblies

Selection
MAV frictional locking assemblies provide a keyless, zero backlash connection between shaft and
hub, like gears, pulleys, cams, levers, rotors and many others.
MAV units are well suited to transmit torque, thrust loads, bending moments and radial loads,
separately or simultaneously. Performances listed in this catalogue are calculated without safety
factor. The user must consider the specific safety factor, which depends on each application.
The following criteria are used for selection of the right unit. The selection should be also based
on other specific requirements, like dimensional restrictions, precision of the connection, fixed axial
hub position during tightening and others (see characteristics pg. 6 and 7).
Torque
Where T is the peak torque, select a unit where Mt > T, where Mt = torque capacity.
Combined loads
When the following loads apply:
T = peak torque
B = peak bending moment
F = peak thrust load
Calculate a resultant torque, according to:
Mtc T 2 +
d
2
F . + (2 . B) 2
2
where d = shaft diameter
The selected unit has to meet both requirements:
Mt > Mtc
Mb > B, where Mb = bending capacity
Mb depends on each application.
Consult our Technical Dept. for specific information.
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LOCKING ASSEMBLIES