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KB506XXX Sanyo Denki

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Internal Product Review

The KB506XXX is a Sanyo Denki K SANMOTION servo motor with a lead wire connection and a keyed output shaft. Rated output of 0.06 kW at 3000 min-1 supports smooth, responsive motion in light-duty positioning applications. Peak stall torque of 1.8 N·m stands out as a strong performance advantage.

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Product Description:

The KB506XXX is a DC servo motor produced by Sanyo Denki within the K SANMOTION Servo Motors series. As a compact drive element, it converts low-voltage electrical power into regulated mechanical rotation for positioning axes, indexing tables, and other light-duty automation mechanisms. Its design does not include a tachometer generator, so speed feedback must come from an external sensor or the connected drive. The standard connection uses a lead-wire harness that simplifies integration in confined installation spaces.

This model delivers a rated mechanical output of 0.06 kW at a shaft speed of 3000 rpm, making it suitable for applications that need modest but steady power. The armature operates from a 24 V supply, allowing direct connection to common control-level power buses. Under continuous stall conditions, the motor can sustain 0.24 N·m within its thermal limits. Short torque bursts of up to 1.8 N·m support acceleration and temporary load increases. A 1000 mm lead-wire pigtail is preinstalled, so field wiring does not require splicing. The conductor exit direction remains fixed relative to the stator frame, which supports consistent cable routing around adjacent machine components.

The 54 mm square flange provides a compact mounting footprint and aligns with compatible machine brackets. The motor has a mass of only 0.7 kg, helping reduce the load carried by moving assemblies. Its rotor moment of inertia is 0.22 × 10⁻⁴ kg·m², supporting responsive acceleration and limiting overshoot during rapid positioning movements. The enclosure has an IP43 protection rating, providing basic resistance to solid objects larger than 1 mm and water sprayed at an angle. The keyed output shaft transfers torque directly to pulleys or couplings without relying solely on clamping force. The motor does not include an internal oil seal, which makes it better suited to installations where the shaft is not exposed to oil or similar fluids. Its lead-wire connection also avoids the additional clearance that a large terminal housing or plug-style connector could require.

Connection
Lead Wire
Continuous Stall Torque
0.24 N·m
Lead Wire Length
1000 mm
Motor Flange Size
54 mm sq.
Motor Mass
0.7 kg
Oil Seal
No
Output Shaft
With Key
Peak Stall Torque
1.8 N·m
Protection Rating
IP43
Rated Armature Voltage
24 V
Rated Output
0.06 kW
Rated Speed
3000 min-1
Rotor Inertia
0.22 ×10^-4 kg·m2
Tachometer Generator
No

Frequently Asked Questions about KB506XXX:

Q: What is the continuous stall torque of the KB506XXX servo motor?

A: The KB506XXX servo motor has a continuous stall torque of 0.24 N·m.

Q: What is the rated armature voltage for the KB506XXX?

A: This model operates with a rated armature voltage of 24 V.

Q: What output shaft configuration does the KB506XXX use?

A: The output shaft on the KB506XXX is configured with a key.

Q: How long are the lead wires provided with the KB506XXX?

A: The lead wires on this servo motor are 1000 mm in length.

Q: What is the protection rating of the KB506XXX servo motor?

A: The KB506XXX has a protection rating of IP43 against ingress of solid objects and water.

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