Hurst Manufacturing

Discontinued for reference only

BAS Exceptionally Small, Permanent Magnet Stepping Motors STEPPING MOTORS:
BAS Series

EXCEPTIONALLY SMALL, PERMANENT MAGNET STEPPING MOTORS

This exceptionally small stepping motor - a mere 0.895" x 1.438" - has a relatively high torque to inertia ratio. Its design recognizes the demand for small components to fit where space is severely limited.

The BAS Series motors are available in a choice of 5, 6, 12 and 24 VDC models. They have a holding torque of 1.1 ounce-inch. All have a step angle of 18^o, or 20 steps per revolution.

Applications are found in a wide range of medical and scientific instruments and robotics. These stepping motors are also recommended for low duty-cycle, batteiy operated equipment.

NOTES
1. Standard winding configuration is four-phase, bifilar with six lead wires.
2. BAS motors can be driven with the Hurst Stepping Motor Controllers .

Direct Drive Stepping Motors

Model Part
Number Step
Angle
(degrees) Steps
Per
Revolution 2-Phase
Holding
Torque
(oz-in) Rated
Torque
@4-5p/s
(oz-in) Input
Power
(watts) Nominal
Voltage
(volts) Winding
Resistance
(ohms) Temp.
Rise (^oC)* Rotor
Inertia
(oz-in) Weight
(oz)
BAS 4202-001 18 20 1.10 0.625 2.5 5 20 46 1.19 2.1

BAS 4202-002 18 20 1.10 0.625 2.5 6 29 46 1.19 2.1

BAS 4202-003 18 20 1.10 0.625 2.5 12 115 46 1.19 2.1

BAS 4202-004 18 20 1.10 0.625 2.5 24 461 46 1.19 2.1

* Measured with no heat sink, motor in a holding mode with 2 phases energized.

	STEPPING MOTORS: BAS Series
EXCEPTIONALLY SMALL, PERMANENT MAGNET STEPPING MOTORS

Model	Part Number	Step Angle (degrees)	Steps Per Revolution	2-Phase Holding Torque (oz-in)	Rated Torque @4-5p/s (oz-in)	Input Power (watts)	Nominal Voltage (volts)	Winding Resistance (ohms)	Temp. Rise (^oC)*	Rotor Inertia (oz-in)	Weight (oz)
BAS	4202-001	18	20	1.10	0.625	2.5	5	20	46	1.19	2.1
BAS	4202-002	18	20	1.10	0.625	2.5	6	29	46	1.19	2.1
BAS	4202-003	18	20	1.10	0.625	2.5	12	115	46	1.19	2.1
BAS	4202-004	18	20	1.10	0.625	2.5	24	461	46	1.19	2.1