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Oriental Motor offers RoHS versions of all of our most popular product lines. To learn more about RoHS and the products we offer contact your local sales office or visit our RoHS section.
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The following marks are indicated on the nameplates of approved products. Learn More.
UL recognized component.
Recognized to Canadian safety requirements under the component Recognition Program of Underwriters Laboratories Inc.
Recognized to Canadian Safety requirements and UL under the component Recognition Program of Underwriters Laboratories Inc.
CSA certified component.
EN and IEC certified component (indicates that VDE, TÜV Rheinland or DEMKO has certified that the product meets EN or IEC standards.)
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The PK/PV Series 2-Phase stepping motors are available in a range of frame sizes from 1.10 in. (28mm) to 3.35 in. (85mm). In addition to the standard type, we offer high-torque, high-inertia, high-resolution and SH geared type motors. The motor windings also come in various specifications.
PK Series
Standard Type
The standard PK Series 2-phase stepping motor offers balanced performance enhanced by high torque, low vibration and low noise. Optimal motor size and winding specification can be selected from a wide range of motor variations.
With Encoder
The PK Series 2-phase stepping motor with encoder offers high torque and precise feedback capability.
- Encoder Feedback Type: Incremental
- Two feedback resolutions: 200 and 400 pulses/rev.
- Provides closed loop system capability
High Torque Type
This motor combines high torque and a compact size. Three frame sizes, 1.10 in. (28mm), 1.38 in. (35mm) and 1.65 in. (42mm), are available. Each specification provides torque equivalent to a motor of the next larger frame size, supporting high-torque operation even in the high-speed range. For example, high torque type PK246PB [motor frame size 1.65 in. (42mm)] has the same holding torque as the standard type PK266-01B [motor frame size 2.22 in. (56.4mm)]. This means a smaller size motor will maintain the same torque. This allows for downsized and lightweight equipment.
High Resolution Type
These 2-phase, high resolution stepping motors have half the step angle of standard stepping motors. The high resolution type increases motor resolution from 200 steps/revolution to 400 steps/revolution. Smaller step angles can be achieved by half-step driving or microstep driving. Other than having twice as many rotor teeth as standard stepping motors, all other structures are exactly the same as standard stepping motors.
SH Geared Type
Incorporating SH gears with high permissible torque, these models offer the full benefit of the speed reducing capability of geared motors, delivering high resolution, high torque and smooth low-speed rotation. With performance like this, the SH Geared type can easily satisfy the requirements of various kinds of low-speed positioning applications.
Smooth Rotation at Low Speeds
Stepping motors at low speed produce a relatively high amount of vibration. Use of a gearhead allows for an increase in the speed of the motor which results in a smoother motion while maintaining the low output speed required by the application.
Six Gear Ratios
SH geared motors are available with six different gear ratios: 3.6:1, 7.2:1, 9:1, 10:1, 18:1, and 36:1. The low ratios of these gearheads can greatly facilitate speed control of the 2-phase stepping motors.
Ideal for High Inertia Drive
The stepping motor itself can drive an inertia of 10 times the rotor inertia. The geared type can reduce the load inertia by the square of the gear ratio. Therefore, the geared type is suitable for driving larger inertial loads.
PV Series
High Inertia Capability
The PV Series provides, on average, 1.5 times higher torque than a standard stepping motor. By utilizing a larger rotor diameter, larger magnets can be used to significantly increase the output torque.
RoHS Compliant
RoHS (Restriction of Hazardous Substances) Directive:
Directive on restriction of the use of certain hazardous substances in electrical and electronic equipment (2002/95/EC).
The RoHS Directive prohibits the use of six chemical substances in electrical and electronic products sold in the EU member states. The six controlled substances are: lead, hexavalent chromium, cadmium, mercury and two specific brominated flame-retardants (PBB and PBDE).