THK ET20 Series, Manual

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ET35
Motor Selection Information
Compatible Motors
Angular Velocity versus Permissible Moment of Inertia Angular Velocity versus Output Torque
Output tor
que (N
·m)
Angular velocity (°/s)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 100 200 300 400 500 600
3.3
0.9
2.2
0.6
0.4
0.6
133
ET35–30 (Ambient temperature: 10°C or more)
ET35–30 (Ambient temperature: Less than 10°C)
ET35–20 (Ambient temperature: 10°C or more)
ET35–20 (Ambient temperature: Less than 10°C)
Motor Shaft Rotation Speed versus Internal Resistance Torque
Note 3) Internal resistance torque increases in low-temperature environments (10°C and below).
Therefore, it is recommended to use a higher safety margin when selecting a product.
0.000
0.010
0.020
0.030
0.040
0.050
0.060
0.070
0.080
0.090
0 500 1000 1500 2000
0.045
0.077
0.056
0.032
0.053
0.037
0.016
0.024
Inter
nal r
esistance tor
que (N
·m)
Motor shaft rotation speed (min
-1
)
ET35–30 (Ambient temperature: 10°C or more)
ET35–30 (Ambient temperature: Less than 10°C)
ET35–20 (Ambient temperature: 10°C or more)
ET35–20 (Ambient temperature: Less than 10°C)
Note 1) This graph represents cases where the angular acceleration is 3000°/s
2
.
Note 2) Please use a safety margin of 1.5 or higher for the output torque.
Permissible moment of inertia (k
g
·m
2
)
Angular velocity (°/s)
0.000
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0.040
0.045
0.050
0 100 200 300 400 500 600
0.042
0.028
0.011
0.007
0.007
0.005
133
ET35–30 (Ambient temperature: 10°C or more)
ET35–30 (Ambient temperature: Less than 10°C)
ET35–20 (Ambient temperature: 10°C or more)
ET35–20 (Ambient temperature: Less than 10°C)
Reduction
ratio
Unit mass (with motor)
(k
g
)
Unit mass (without motor)
(k
g
)
Moving part mass
(k
g
)
Unit inertia
(k
g
·cm
2
)
Efficiency Timing pulley Timing belt
1/20 1.2 0.8 0.17 0.012 0.72
P26-2GT-6-33F
(Manufactured by Gates Unitta Asia Company)
134-2GT-6
(Manufactured by Gates Unitta Asia Company)
1/30 1.2 0.8 0.17 0.015 0.71
P26-2GT-6-33F
(Manufactured by Gates Unitta Asia Company)
148-2GT-6
(Manufactured by Gates Unitta Asia Company)
AC servo motor
Motor rated
output (W)
Flange size
Motor
bracket
YASKAWA
Electric
Corporation
Σ -V
SGMJV–A5 50
40×40 B
SGMJV-01 100
SGMAV–A5 50
SGMAV-01 100
Σ –7
SGM7J–A5 50
40×40 B
SGM7J-01 100
SGM7A–A5 50
SGM7A-01 100
Σ
-X
SGMXJ–A5 50
40×40 B
SGMXJ-01 100
SGMXA–A5 50
SGMXA-01 100
Mitsubishi
Electric
Corporation
MELSERVO
J4
HG–KR053 50
40×40 B
HG-KR13 100
HG–MR053 50
HG-MR13 100
J5
HK–KT053W 50
40×40 B
HK-KT13W 100
AC servo motor
Motor rated
output (W)
Flange size
Motor
bracket
TAMAGAWA
SEIKI CO.,
LTD.
TBL-i
Ⅱ
TS4602 50
40 × 40 B
TS4603 100
TBL-i Ⅳ
TSM3102 50
40×40 B
TSM3104 100
SANYO DENKI
CO., LTD.
SANMOTION R
R2*A04005 50
40×40 B R2EA04008 80
R2AA04010 100
Stepper motor Flange size
Motor
bracket
ORIENTAL MOTOR CO., LTD. 2-phase PKP235* 35×35 A
Note 4) Please select and use a motor that is suited to the usage conditions. The table
shows only a portion of the model numbers for motors. For details regarding model
numbers, please see the catalog for each respective motor manufacturer.
Note 5) If the maximum torque of the installed motor will exceed the permissible input
torque (p. 13), please consider a safety measure to limit the torque.
Note 6) Please select a D-cut type motor output shaft.
Note 7) Installation may not be possible depending on the motor options, so please verify in
advance.
14