High Torque Stepper Motors - TOPS

Mechanical, Electrical & Environmental Specifications:

Size HT17Size HT23Size HT34
Shaft Run-Outin
mm
0.0005
0.0127
0.002
0.0508
0.002
0.0508
Radial Playinch/Lbs.
mm/kg
0.001 max @ 1 lb
0.025 max @ 0.45 kg
End Playinch/Lbs.
mm/kg
0.003 max @ 2.2 lbs
0.076 max@ 1 kg
Perpendicularity0.003
Concentricityin
mm
0.002
0.0508
Operating Temperature Range°C-20 to +50
Insulation Class130°C Class B
Lead Wire Gauge26 AWG22 AWG22 AWG
Maximum Radial Loadlbs
kg
5
2.27
15
6.81
25
11.35
Maximum Thrust Loadlbs
kg
3
1.362
25
11.35
50
22.7

Design Tips:

  • Series connect lead wires for best torque at low speeds.
  • Center tap to end or parallel connect lead wires for best torque at higher speeds.
  • Keep motor case temperature below 100° C. This can be achieved by lowering the motor current or limiting the duty cycle.
  • Allow sufficient time to accelerate load.
  • Size motor with 100% safety factor for required torque @ speed.
  • Do not disassemble motors. A significant reduction in motor performance will result.
  • Do not machine shafts without consulting TOPS.
  • Do not disconnect motor from drive while in operation.
  • Do not use holding torque/detent torque of motor as fail safe brake.

Motion Installation Tips:

  • Mount the motor securely against a surface with good thermal conductivity such as steel or aluminum.
  • Properly align the motor with the load using a flexible coupling.
  • Protect the motor shaft from excessive thrust, overhung and shock loads.
Part Number Motor
Connection
1=series
2=parallel
3=unipolar
Motor Length Holding Torque Leads Step Angle Volts Amps Ohms mH Rotor Inertia Motor Weight
(inches)(mm) (oz-in)(Nm) (oz-in2)(g-cm2) (lbs)(kg)
  Size 11 — Dimensional drawing
HT11-01221.323470.0541.81.411.41.40.04480.260.1
HT11-01321.8747150.1141.82122.60.098180.390.2
  Size 17 — Dimensional drawing
HT17-0681.33322.20.1681.840.954.22.80.19350.440.2
HT17-0691.33322.20.1681.89.60.424150.19350.440.2
HT17-0701.33322.20.1681.812.10.3139220.19350.440.2
HT17-0711.543936.10.2681.841.23.33.60.29540.570.3
HT17-0721.543936.10.2681.860.87.57.60.29540.570.3
HT17-0731.543936.10.2681.8120.427300.29540.570.3
HT17-0741.543936.10.2681.8240.21201070.29540.570.3
HT17-0751.854744.40.3281.841.23.330.37680.730.3
HT17-0761.854744.40.3281.86.80.88.59.50.37680.730.3
HT17-0771.854744.40.3281.8120.430290.37680.730.3
  Size 23 — Dimensional drawing
HT23-3931.543954.20.3981.85.215.25.40.6612010.5
HT23-3941.543954.20.3981.82.821.41.40.6612010.5
HT23-3951.543954.20.3981.81.930.630.60.6612010.5
HT23-3962.13541250.9081.87.217.2111.643001.540.7
HT23-3972.13541250.9081.83.621.82.51.643001.540.7
HT23-3982.13541250.9081.82.330.751.21.643001.540.7
HT23-3992.99761871.3581.88.218.2142.624802.21.0
HT23-4002.99761871.3581.84.522.253.62.624802.21.0
HT23-4012.99761871.3581.83311.62.624802.21.0
  Size 34 — Dimensional drawing
HT34-43514.441136504.6881.83.14.30.725.87.8142652.3
24.441136504.6881.81.58.60.181.47.8142652.3
34.441134603.3181.82.160.361.47.8142652.3
HT34-43615.9615112008.6481.84.24.11.0310.314.626838.43.8
25.9615112008.6481.82.18.10.262.614.626838.43.8
35.961518506.1281.82.95.70.522.614.626838.43.8
HT34-43717.48190184513.2881.84.84.51.0613.621.9400311.95.4
27.48190184513.2881.82.390.263.421.9400311.95.4
37.4819013059.4081.89.66.31.533.421.9400311.95.4
HT34-43818.99228214015.4181.84.65.60.8210.628.9529615.16.9
28.99228214015.4181.82.311.30.22.628.9529615.16.9
38.99228151010.8781.83.380.412.628.9529615.16.9

View our standard torque stepper motors and matching drives and controls.