I calibri scanalati sono descritti in diverse
norme nazionali ed estere e nelle norme
internazionali ISO 4156. Tutte queste normative
si diversificano una dall’altra e
non sono esaustive ne riflettono lo stato
dell’arte della tecnologia. Il sistema
FRENCO INO per I calibri scanalati rappresenta
uno standard unificato al più alto
livello tecnico. I calibri scanalati sono
disponibili secondo vari disegni.
Qualità
All spline gages are
supplied with a full calibrated certificate,
including
graphs of all
individual form deviations.
They comply with the requirements of ISO
9000ff
and thus completely replace
the incoming goods
inspection. Exceptions are possible upon
request.
Frenco INO System
The INO system is a FRENCO internal
standard for the external dimensional measurement
of spline gages. National
and international standards were taken into
consideration in its development and it
represents an average
of the dimensions
specified in these standards. The construction
considers the recyclability and manufacturability
of the extremely wear-resistant material
HX.
The tabulated dimensions for
Frenco INO apply for all splines with involute
and serration flanks. Frenco INO-L is used
as standard for “go” straight
flank gages. INO-L dimensions are available
for oversize gages on request.
Selezione materiali
The content of chromium and
vanadium alloy, as well as the hardness
of the material, determine the wear resistance
of the spline gage. The time intervals between
wear inspections depend on wear resistance,
which means that highly wear resistant materials
allow the monitoring periods to be significantly
extended; this often more than compensates
for the higher manufacturing costs.
