Oriental Motor

ORIENTAL MOTOR U.S.A. Corp.
570 Alaska Avenue
Torrance, CA 90503
1-800-GO-VEXTA (468-3982)

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This product has been discontinued please contact your local sales office for more information.

Compatible Motors (sold separately)

Unit of Measure

Specifications

Frame Size

2.36 in

Motor Length

3.68 in.

Speed-Torque Characteristics


Speed - Torque Characteristics

Holding Torque

352 oz-in

Current per Phase (A/phase)

1.4

Type

Geared

Shaft/Gear Type

Taper Hobbed Gear

Gear Ratio (X:1)

7.2 :1

Gear Type

Taper Hobbed, Low Backlash (up to 45 arc min), Offset Shaft

Backlash

15 arc min (0.25º)

Motor Connection Type

Flying Leads

Shaft

Double

Basic Step Angle

0.72º

Output Step Angle

0.10 °

Connection Type

New Pentagon (Bipolar)

Lead Wires

5

Rotor Inertia

0.96 oz-in²

RoHS Compliant

Yes

Safety Standards

UL CSA EN CE

Insulation Resistance

100 MΩ minimum under normal temperature and humidity, when measured by a 500 VDC megger between the windings and the motor casing.

Dielectric Strength

Sufficient to withstand 1.5 kV, 50 Hz or 60 Hz applied for 1 minute between the windings and casing under normal temperature and humidity.

Temperature Rise

Temperature rise of the coil measured by the Change Resistance Method is 144ºF (80ºC) or less (at rated current, at standstill, five phases energized).

Insulation Class

Class B [266ºF (130ºC)] [Recognized as Class A 221ºF (105ºC) by UL standard]

Ambient Temperature Range

14ºF ~ 122ºF (-10ºC ~ 50ºC) (nonfreezing)

Ambient Humidity

85% or less (noncondensing)

Shaft Runout

0.002 in. (0.05 mm) T.I.R. at top of output shaft

Concentricity

0.003 in. (0.075 mm) T.I.R.

Perpendicularity

0.003 in. (0.075 mm) T.I.R.

Radial Play

0.001 in. (0.025 mm) max. of 1.12 lb. (5 N)

Axial Play

0.003 in. (0.075 mm) max. of 2.2 lb. (10 N)

Radial Load

0 in. from Shaft End = 15.7 lb0.2 in. from Shaft End = 18 lb0.39 in. from Shaft End = 22 lb0.59 in. from Shaft End = 27 lb0.79 in. from Shaft End = 33 lb

Axial Load

9 lb

Features

-

Taper Hobbed (TH) Stepping Motors

The PK Series 0.72°stepping motor offers high torque, our lowest vibration and noise. This motor is wound in the bipolar New Pentagon configuration and therefore, require a New Pentagon bipolar type driver. The New Pentagon configuration ensures that maximum torque is being generated by the motor on every step. The New Pentagon configuration also provides extremely smooth motion as well as maintaining torque and step accuracy regardless of the step resolution.

TH Gear

With the TH geared type, tapered gears are used for the spur gear's speed-reduction mechanism and the meshing gear. The tapered gear is produced through continuous profile shifting toward the shaft. The tapered gears are adjusted in the direction of the arrows, as shown in the figure, to reduce backlash.

Available in 1.10 in. (28mm), 1.65 in. (42mm), 2.36 in. (60mm) and 3.54 in. (90mm) frame sizes.


EncoderEncoder Option Available

The PK Series stepping motor with encoder offers high torque and precise feedback capability.

  • 500 or 1000 pulse/rev.
  • 2/ 3-channel TTL type or 3-channel line driver type