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GS Series Mechanical & Electrical Specs
GS20
Nominal Backlash in (mm) 0.004 (.10)
Maximum Backlash (pre-loaded) in(mm) 0.0
Lead Accuracy in/ft
(mm/300 mm)		 0.001 (.025)
Maximun Radial Load lb (N) 20 (90)
Brake Holding Torque - Dry lb-in (Nm) 24 (2.71)
Brake Holding Torque - Oil Lubricated lb-in (Nm) 8 (0.90)
Environmental Rating: Std./Optional ff IP65/67
Motor Stator L6 M6 M6-DS H6
Trapezoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 8.0
(0.91)		 7.7
(0.87)		 11.5
(1.29)		 7.2
(0.81)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 2.11
(0.24)		 4.37
(0.49)		 4.80
(0.54)		 8.68
(0.98)
Cont. Current Rating: Greased (IG) A 3.80 1.75 2.39 0.82
Cont. Current Rating: Oiled (IL) A 7.61 3.50 4.77 1.65
Peak Current Rating Amps 7.61 3.50 4.77 1.65
RMS Sinusoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 8.4
(0.95)		 8.0
(0.91)		 12.0
(1.36)		 7.5
(0.85)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 2.71
(0.31)		 5.61
(0.63)		 6.16
(0.70)		 11.13
(1.26)
Cont. Current Rating: Greased (IG) Amps 3.11 1.43 1.95 0.67
Cont. Current Rating: Oiled (IL) Amps 6.21 2.86 3.90 1.35
Peak Current Rating Amps 6.21 2.86 3.90 1.35
Motor Stator Data
Voltage Constant (Ke) Vrms/krpm 19.6 40.80 43.7 81.6
Voltage Constant (Ke) Vpk/kprm 28.1 58.50 61.8 117.0
Pole Configuration xx 6 6 6 6
Resistance (L-L) Ohms 1.72 8.10 4.36 36.52
Inductance (L-L) mH 1.08 4.69 2.88 18.76
Brake Current @ 24 VDC A .21 .21 .21 .21
Brake Engage/Disengage Time ms 250/50 250/50 250/50 250/50
Mechanical Time Constant (tm) ms min 3.06 3.35 1.56 3.80
Mechanical Time Constant (tm) ms max 4.33 4.74 2.20 5.39
Electrical Time Constant (te) ms 0.63 0.58 0.66 0.51
Damping Constant lbf-in/krpm
(Nm/krpm)		 0.55
(0.06)		 0.55
(0.06)		 0.55
(0.06)		 0.55
(0.06)
Friction Torque lbf-in
(Nm)		 1.0
(0.11)		 1.0
(0.11)		 1.0
(0.11)		 1.0
(0.11)
Bus Voltage Vrms 115 230 230 460
Speed @ Bus Voltage RPM 5000 5000 5000 5000
Motor Wire Insulation xx Class H
Motor Stator Rating xx Class F
Thermal Switch Case Temp degrees C 100
Standard Connectors (O-option) Motor xx MS-3112-E16-8P
Standard Connectors (O-option) Feedback xx MS-3112-E14-18P
Std Connectors (O-option) Brake/Limit Sw. xx MS-3112-E12-8P
End Switches (optional) xx NC,NPN 9-24Vdc 20mA
All ratings at 25 degrees Celsius
For amplifiers with peak sinusoidal commutation Kt = Ktrms(0.707), Ic = Icrms/(0.707), Ipk = Ipkrms/(0.707)
Back to GS Overview
GS30
Nominal Backlash in (mm) 0.004 (.10)
Maximum Backlash (pre-loaded) in (mm) 0.0
Lead Accuracy in/ft
(mm/300 mm)		 0.001 (.025)
Maximum Radial Load lb (N) 30 (134)
Brake Holding Torque - Dry lb-in (Nm) 78 (8.81)
Brake Holding Torque - Oil Lubricated lb-in (Nm) 26 (2.94)
Environmental Rating: Std./Optional xx IP65/67
Motor Stator L6 M6 M6-DS H6*
Trapezoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 18.8
(2.13)		 19.4
(2.19)		 27.5
(3.11)		 19.3
(2.18)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 3.44
(0.39)		 6.90
(0.78)		 7.21
(0.81)		 13.79
(1.56)
Cont. Current Rating: Greased (IG) A 5.47 2.81 3.82 1.40
Cont. Current Rating: Oiled (IL) A 10.94 5.63 7.63 2.80
Peak Current Rating A 10.94 5.63 7.63 2.80
RMS Sinusoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 19.7
(2.23)		 20.3
(2.30)		 28.8
(3.26)		 20.2
(2.28)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 4.41
(0.50)		 8.85
(1.00)		 9.25
(1.04)		 17.68
(2.00)
Cont. Current Rating: Greased (IG) Amps 4.47 2.30 3.12 1.14
Cont. Current Rating: Oiled (IL) Amps 8.93 4.60 6.23 2.29
Peak Current Rating Amps 8.93 4.60 6.23 2.29
Motor Stator Data
Voltage Constant (Ke) Vrms/krpm 31.2 62.4 63.5 124.8
Voltage Constant (Ke) Vpk/kprm 45.0 90.0 91.5 180.0
Pole Configuration xx 6 6 6 6
Resistance (L-L) Ohms 2.37 8.96 4.87 36.17
Inductance (L-L) mH 3.92 15.72 9.62 62.92
Brake Current @ 24 VDC A 0.72 0.72 0.72 0.72
Brake Engage/Disengage Time ms 250/50 250/50 250/50 250/50
Mechanical Time Constant (tm) ms min 5.12 4.82 2.47 4.87
Mechanical Time Constant (tm) ms max 8.55 8.06 4.12 8.14
Electrical Time Constant (te) ms 1.65 1.75 1.98 1.74
Damping Constant lbf-in/krpm
(Nm/krpm)		 1.23
(.14)		 1.23
(.14)		 1.23
(.14)		 1.23
(.14)
Friction Torque lbf-in
(Nm)		 2.0
(0.23)		 2.0
(0.23)		 2.0
(0.23)		 2.0
(0.23)
Bus Voltage Vrms 115 230 230 460
Speed @ Bus Voltage RPM 3000 3000 3000 3000
Motor Wire Insulation xx Class H
Motor Stator Rating xx Class F
Thermal Switch Case Temperature degrees C 100
Standard Connectors (O-option) Motor xx MS-3112-E16-8P
Standard Connectors (O) Feedback xx MS-3112-E14-18P
Standard Connectors (O) Brake/Limit Sw. xx MS-3112-E12-8P
End Switches (optional) xx NC,NPN 9-24VDC 20mA
All ratings at 25 degress Celsius.
For amplifiers with peak sinusoidal commutation Kt = Ktrms (0.707), lc =lcrms/(0.707), lpk = lpkrms/(0.707).
*The H6 option is not available in the 3" stroke GS30 actuator.
GS40
Nominal Backlash in (mm) 0.004 (.10)
Maximum Backlash (pre-loaded) in (mm) 0.0
Lead Accuracy in/ft
(mm/300 mm)		 0.001 (.025)
Maximum Radial Load lb (N) 40 (179)
Brake Holding Torque - Dry lb-in (Nm) 120 (13.56)
Brake Holding Torque - Oil Lubricated lb-in (Nm) 40 (4.52)
Environmental Rating: Std./Optional xx IP65/67
Motor Stator L8 M8 H8
Trapezoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 49.8
(5.62)		 47.3
(5.35)		 49.5
(5.59)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 3.14
(0.36)		 6.21
(0.70)		 12.57
(1.42)
Continuous Current Rating: Greased (IG) Amps 15.84 7.61 3.94
Continuous Current Rating: Oiled (IL) Amps 31.67 15.23 7.87
Peak Current Rating Amps 31.67 15.23 7.87
RMS Sinusoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 52.1
(5.89)		 49.5
(5.60)		 51.8
(5.85)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 4.03
(0.46)		 7.97
(0.90)		 16.12
(1.82)
Continuous Current Rating: Greased (IG) Amps 12.93 6.22 3.21
Continuous Current Rating:  Oiled (IL) Amps 25.86 12.43 6.43
Peak Current Rating Amps 25.86 12.43 6.43
Motor Stator Data
Voltage Constant (Ke) Vrms/krpm 28.7 56.9 114.7
Voltage Constant (Ke) Vpk/kprm 40.6 80.5 162.2
Pole Configuration xx 8 8 8
Resistance (L-L) Ohms 0.30 1.29 4.81
Inductance (L-L) mH 0.47 2.49 9.72
Brake Current @ 24 VDC A 0.88 0.88 0.88
Brake Engage/Disengage Time ms 250/50 250/50 250/50
Mechanical Time Constant (tm) ms min 3.71 4.09 3.76
Mechanical Time Constant (tm) ms max 5.36 5.91 5.43
Electrical Time Constant (te) ms 1.58 1.94 2.02
Damping Constant lbf-in/krpm
(Nm/krpm)		 3.25
(0.37)		 3.25
(0.37)		 3.25
(0.37)
Friction Torque lbf-in
(Nm)		 4.50
(0.51)		 4.50
(0.51)		 4.50
(0.51)
Bus Voltage Vrms 115 230 460
Speed @ Bus Voltage RPM 3000 3000 3000
Motor Wire Insulation xx Class H
Motor Stator Rating xx Class F
Thermal Switch Case Temperature degrees C 100
Standard Connectors (O-option) Motor xx MS-3112-E16-8P
Standard Connectors (O) Feedback xx MS-3112-E14-18P
Standard Connectors (O) Brake/Limit Sw. xx MS-3112-E12-8P
End Switches (optional) xx Not Available
All ratings at 25 degrees Celsius
For amplifiers with peak sinusoidal commutation Kt = Ktrms(0.707),Ic = Icrms/(0.707), Ipk = Ipkrms/(0.707)
GS45
Nominal Backlash in (mm) 0.004(.10)
Maximum Backlash (pre-loaded) in (mm) 0.0
Lead Accuracy in/ft
(mm/300 mm)		 0.001(.025)
Maximum Radial Load lb (N) 50 (225)
Environmental Rating: Std./Optional xx IP65/67
Motor Stator L6 M6 M6-DS H6 H6-DS
Trapezoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 70.3
(7.94)		 71.4
(8.07)		 125.0
(14.12)		 69.1
(7.80)		 116.5
(13.16)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 4.44
(0.50)		 8.89
(1.00)		 9.56
(1.08)		 17.34
(1.96)		 17.89
( 2.02)
Cont. Current Rating: Greased (IG) Amps 15.84 8.03 13.08 3.98 6.51
Cont. Current Rating: Oiled (IL) Amps 31.67 16.06 26.15 7.96 13.03
Peak Current Rating Amps 31.67 16.06 26.15 7.96 13.03
RMS Sinusoidal Commutation
Continuous Motor Torque lbf-in
(Nm)		 73.6
(8.32)		 74.8
(8.45)		 130.9
(14.79)		 72.3
(8.17)		 122.0
(13.79)
Torque Constant (Kt) lbf-in/A
(Nm/A)		 5.69
(0.64)		 11.40
(1.29)		 12.26
(1.39)		 22.24
(2.51)		 22.94
(2.59)
Cont. Current Rating: Greased (IG) Amps 12.93 6.56 10.68 3.25 5.32
Cont. Current Rating: Oiled (IL) Amps 25.86 13.11 21.36 6.50 10.64
Peak Current Rating Amps 25.86 13.11 21.36 6.50 10.64
Motor Stator Data
Voltage Constant (Ke) Vrms/krpm 41.0 82.0 85.0 160.0 159.1
Voltage Constant (Ke) Vpk/krpm 57.0 114.0 118.5 223.0 222.5
Pole Configuration xx 6 6 6 6 6
Resistance (L-L) Ohms 0.45 1.75 0.66 7.12 2.66
Inductance (L-L) mH 1.71 6.93 3.12 27.54 12.30
Brake Inertia lbf-in-sec2
kg-cm2		 .00272
(3.073)		 .00272
(3.073)		 .00272
(3.073)		 .00272
(3.073)		 .00272
(3.073)
Brake Current @ 24 VDC A 0.89 0.89 0.89 0.89 0.89
Brake Holding Torque - Dry lb-in (Nm) 220
(24.86)		 220
(24.86)		 220
(24.86)		 220
(24.86)		 220
(24.86)
Brake Holding Torque - Oil Lubricated lb-in (Nm) 90
(10.17)		 90
(10.17)		 90
(10.17)		 90
(10.17)		 90
(10.17)
Brake Engage/Disengage Time ms 250/50 250/50 250/50 250/50 250/50
Mechanical Time Constant (tm) ms min 5.56 5.40 1.82 5.76 2.09
Mechanical Time Constant (tm) ms max 8.72 8.46 2.86 9.02 3.28
Electrical Time Constant (te) ms 3.79 3.96 4.73 3.87 4.62
Damping Constant lbf-in/krpm
(Nm/krpm)		 6.33
(0.71)		 6.33
(0.71)		 6.33
(0.71)		 6.33
(0.71)		 6.33
(0.71)
Friction Torque lbf-in
(Nm)		 7.70
(0.86)		 7.70
(0.86)		 7.70
(0.86)		 7.70
(0.86)		 7.70
(0.86)
Bus Voltage Vrms 115 230 230 460 460
Speed @ Bus Voltage RPM 2400 2400 2400 2400 2400
Motor Wire Insulation xx Class H
Motor Stator Rating xx Class F
Thermal Switch Case Temperature °C 100
Standard Connectors (O-option) Motor xx MS-3112-E16-8P
Standard Connectors (O) Feedback xx MS-3112-E14-18P
Standard Connectors (O) Brake/Limit Switch xx MS-3112-E12-8P
End Switches (optional) xx NC, NPN 9-24VDC 20mA
All ratings at 25 degrees Celsius
For amplifiers with peak sinusoidal commutation Kt = Ktrms(0.707), Ic = Icrms/(0.707),Ipk = Ipkrms/(0.707)
GS60
Nominal Backlash in (mm) 0.004 (.10)
Maximum Backlash (pre-loaded) in (mm) 0.0
Lead Accuracy in/ft
(mm/300 mm)		 0.001(.025)
Maximum Radial Load lb (N) 75 (337)
Brake Holding Torque - Dry lb-in (Nm) 600 (67.8)
Brake Holding Torque - Oil Lubricated lb-in (Nm) 375 (42.38)
Environmental Rating: Standard / Optional xx IP65/67
Motor Stator xx M6 H6
Trapezoidal Commutation xx
Continuous Motor Torque
 lbf-in (Nm) 375.1 (42.38) 384.1 (43.39)
Torque Constant (Kt) lbf-in/A (Nm/A) 9.93 (1.12) 19.90 (2.25)
Continuous Current Rating: Greased (IG) Amps 37.78 19.29
Continuous Current Rating:
Oiled (IL) 		Amps 75.55 38.59
Peak Current Rating Amps 75.55 38.59
RMS Sinusoidal Commutation xx
Continuous Motor Torque
 lbf-in (Nm) 392.9 (44.39) 402.2 (45.44)
Torque Constant (Kt) lbf-in/A (Nm/A) 12.74 (1.44) 25.53 (2.88)
Continuous Current Rating: Greased (IG) Amps 30.84 15.75
Continuous Current Rating:
Oiled (IL) 		Amps 61.69 31.51
Peak Current Rating Amps 61.69 31.51
Motor Stator xx
Voltage Constant (Ke) Vrms/krpm 92.5 185.0
Voltage Constant (Ke) Vpk/krpm 130.0 260.0
Pole Configuration xx 6 6
Resistance (L-L) Ohms 0.18 0.69
Inductance (L-L) mH 1.99 7.58
Brake Current @ 24 VDC A 1.13 1.13
Brake Engage/Disengage Time ms 250/50 250/50
Mechanical Time Constant (tm) ms min 2.84 2.71
Mechanical Time Constant (tm) ms max 2.84 2.71
Electrical Time Constant (te) ms 11.06 10.99