89
1018854 8/2018 V03
Rated power P
N
[W]
Output power at rated speed and rated torque.
Rated speed n
N
[rpm], Servo
The output speed which can be continuously maintained when driven at rated torque T
N
, when mounted on a suitably
dimensioned heat sink.
Rated speed n
N
[rpm], Mechanical
The rated speed is a reference speed for the calculation of the gear life. When loaded with rated torque and running at
rated speed the Wave Generator Bearing will reach the nominal service life L
n
with 50 % propability of failure. The rated speed
n
N
is not used for the dimensioning of the gear.
Rated torque T
N
[Nm], Servo
The output torque which can be continuously transmitted when driven at rated input speed, when mounted on a suitably
dimensioned heat sink.
Rated torque T
N
[Nm], Mechanical
The rated torque is a reference torque for the calculation of the gear life. When loaded with rated torque and running at rated
speed the Wave Generator Bearing will reach the nominal service life L
n
with 50 % propability of failure. The rated torque T
N
is
not used for the dimensioning of the gear.
Rated voltage U
N
[V
rms
]
Supply voltage for operation with rated torque and rated speed.
Ratio i [ ]
The ratio is the reduction of input speed to the output speed.
Note for Harmonic Drive® Gears: In the standard drive arrangement, the Wave Generator is the drive element while the Flex-
spline is the driven element and the Circular Spline is fixed to the housing. Since the direction of rotation of the input (Wave
Generator) is opposite to the output (Flexspline), a negative ratio must be considered.
Repeatability [arcmin]
The repeatability of the gear describes the position differ-
ence measured during repeated movement to the same
desired position from the same direction. The repeatability is
defined as half the value of the maximum difference meas-
ured, preceded by a ± sign.
Product series
n
N
CobaltLine®, HFUC, HFUS, CSF, CSG, CSD, SHG, SHD
2000
PMG size 5
4500
PMG size 8 to 14
3500
HPG, HPGP, HPN
3000
[rpm]
Repeatability = ±x/2
φ
1
φ
7
φ
2
x
x/2 x/2