Tolerances, special executions and surface treatments
Tolerances
The following standard tolerances are the ones applied in the manufacture of ROTAR® products (Ref. EN 20286):
Tolerances
round bore
H7
square bore
H8
hexagonal bore
H8
pin bore
H12
keyway
Js9
Possibility to apply different manufacturing tolerances, prior verification with our Technical Office.
SPECIAL EXECUTIONS
The technical data of our catalogue show the round bore as standard execution. Among the available machining we include:
KEYWAY
SQUARE BORE
HEXAGONAL BORE
SPLINED BORE
THREADED BORE
SOLID BORE (pilot)
SET SCREW
PIN HOLE
QUICK COUPLING
MALE PIN AND THREADED MALE PIN
YOKE WITH SPLINED PROFILE
CLAMP HUB
Standard sizes are specified in this catalogue, bores with different sizes must be checked with our Technical Office.
SPECIAL SURFACE TREATMENTS
Among the heat and galvanic surface treatments we have:
ELECTROLYTIC NICKEL PLATING
ZINC PLATING COATING
ZINC NICKEL PLATING
BURNISHING
HARDENING
PHOSPHATE COATING
HARDENING AND CARBURIZING
OF SHAFT AND HUB
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