Part comparison

ROBOTIS RX-28 vs ROBOTIS XM540-W270-R

A side-by-side comparison of source-backed specifications within the same subcategory.

11 shared specs1 scored

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ROBOTISROBOTIS RX-28RX-28

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ROBOTISROBOTIS XM540-W270-RXM540-W270-R

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Directional spec summary

Counts across 1 numeric specifications with a clear higher-or-lower direction.

Part A leads

Tied

Part B leads

These are metric-by-metric differences, not an overall performance score. Check the values below.

Specifications

11 specifications compared side by side.

ROBOTIS RX-28 / ROBOTIS XM540-W270-R
Compare bySpecification	AROBOTISROBOTIS RX-28	BROBOTISROBOTIS XM540-W270-R
Performance1
Stall torque	3.7 Nm2.435 Nm higher	1.265 Nm
Electrical3
Nominal voltageUse-dependent	14.8 V	12 V
Minimum voltageUse-dependent	12 V	10 V
Maximum voltageUse-dependent	18.5 V	14.8 V
Mechanical & integration4
Motor kind	Smart servo	Smart servo
Drive principle	servo actuator	servo actuator
ArchitectureUse-dependent	Integrated motor controller reducer network	Smart servo module
Gear ratioUse-dependent	193:1	272.5:1
Control & communication3
EncoderUse-dependent	integrated position sensor	absolute
Communication interfaces	RS485	RS485
Control modesUse-dependent	position;velocity;current/PWM;feedback	position;velocity;current;PWM

AROBOTISROBOTIS RX-28

BROBOTISROBOTIS XM540-W270-R

Performance1

Stall torque

Part A3.7 Nm2.435 Nm higher

Part B1.265 Nm

Electrical3

Nominal voltageUse-dependent

Part A14.8 V

Part B12 V

Minimum voltageUse-dependent

Part A12 V

Part B10 V

Maximum voltageUse-dependent

Part A18.5 V

Part B14.8 V

Mechanical & integration4

Motor kind

Part ASmart servo

Part BSmart servo

Drive principle

Part Aservo actuator

Part Bservo actuator

ArchitectureUse-dependent

Part AIntegrated motor controller reducer network

Part BSmart servo module

Gear ratioUse-dependent

Part A193:1

Part B272.5:1

Control & communication3

EncoderUse-dependent

Part Aintegrated position sensor

Part Babsolute

Communication interfaces

Part ARS485

Part BRS485

Control modesUse-dependent

Part Aposition;velocity;current/PWM;feedback

Part Bposition;velocity;current;PWM

Product sources

Product sources used by this comparison

ROBOTIS RX-28Open source ↗

ROBOTIS XM540-W270-ROpen source ↗