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M061-LE08 Danaher

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The Danaher M061-LE08 is a stepping motor from the Slo-Syn Stepping Motors series, featuring a 60 mm frame size and 75 oz-in hold torque in bipolar operation. It supports a bipolar parallel current of 5.4 A and unipolar current of 3.8 A, with a maximum case temperature of 100 degrees Celsius. The motor is built with 8 leads and handles a maximum shaft thrust load of 25 pounds.

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Product Description:

The M061-LE08 is a hybrid stepping motor built by Danaher for the Slo-Syn Stepping Motors series. Its 60 mm square frame delivers incremental rotary motion that can be indexed by a drive without a feedback device. The motor targets material positioning, labeling, and light pick-and-place mechanisms where compact size and simple open-loop control are acceptable.

In bipolar parallel drive mode, the phase windings draw 5.4 A at a rated supply of 0.89 VDC. This low voltage results from a phase resistance of 0.16 ohm, allowing high-current pulses for rapid torque buildup. The electrical time constant is limited by the winding inductance of 0.64 mH, so current rises quickly and the rotor can follow high step rates without lag. Under these conditions, the motor produces a holding torque of 75 oz-in, providing secure static positioning against external disturbances. The rotor inertia is 0.0017 oz-in-s², and a residual torque of 1.0 oz-in counters microstep drift when power is removed. All eight conductors are brought out to the cable lead, allowing the windings to be connected in series or unipolar configurations.

When the same motor is wired in a unipolar configuration, each phase carries 3.8 A and receives a higher drive voltage of 1.3 VDC because the resistance rises to 0.33 ohm per energized half winding. The inductance remains 0.64 mH, so the speed-torque curve is similar at lower shaft power. The housing is rated for a maximum case temperature of 100 °C, permitting operation in heated enclosures as long as the surface temperature is monitored. The frame can sustain an overhung load of 15 lb and a thrust load of up to 25 lb on the 0.25-inch shaft before bearing life is affected. Installation clearances should accommodate the eight-lead bundle and the 0.60-inch-long shaft extension to keep couplings within the manufacturer’s limits.

Bipolar Parallel Current
5.4 A
Bipolar Parallel Inductance
0.64 mH
Bipolar Parallel Resistance
0.16 ohms
Bipolar Parallel Voltage
0.89 VDC
Frame Size
60 mm
Hold Torque (bipolar)
75 oz-in
Lead Count
8
Max Case Temp
100°C
Max Shaft Load Overhang
15 lb
Max Shaft Load Thrust
25 lb
Residual Torque
1.0 oz-in
Rotor Inertia
0.0017 oz-in-s2
Unipolar Current
3.8 A
Unipolar Inductance
0.64 mH
Unipolar Resistance
0.33 ohms
Unipolar Voltage
1.3 VDC

Frequently Asked Questions about M061-LE08:

Q: What is the bipolar parallel current rating of the M061-LE08 motor?

A: The bipolar parallel current for the M061-LE08 is rated at 5.4 A.

Q: What is the holding torque specification for the M061-LE08?

A: This model provides a holding torque of 75 oz-in when operated in bipolar mode.

Q: What frame size does the M061-LE08 stepping motor have?

A: The frame size of the M061-LE08 stepping motor is 60 mm.

Q: What is the maximum shaft overhang load for the M061-LE08 motor?

A: The maximum allowable overhang shaft load for this motor is 15 lb.

Q: What is the maximum case temperature allowed for the M061-LE08?

A: The M061-LE08 can operate with a maximum case temperature of 100°C.


Internal Product Review

  • ‘‘The M061-LE08 is a Danaher Slo-Syn stepping motor with 75 oz-in bipolar holding torque and an 8-lead configuration. Low 0.64 mH inductance and 0.0017 oz-in-s2 rotor inertia support crisp response and stable step performance in motion systems. A 100°C maximum case temperature adds valuable thermal margin for demanding duty cycles.’’

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