Part comparison

ROBOTIS RX-28 vs ROBOTIS RX-64

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

16 shared specs3 scored

Start over

ROBOTISROBOTIS RX-28RX-28

View details

ROBOTISROBOTIS RX-64RX-64

View details

Directional spec summary

Counts across 3 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

16 specifications compared side by side.

ROBOTIS RX-28 / ROBOTIS RX-64
Compare bySpecification	AROBOTISROBOTIS RX-28	BROBOTISROBOTIS RX-64
Physical4
LengthUse-dependent	35.5 mm	41 mm
WidthUse-dependent	35.6 mm	40.2 mm
HeightUse-dependent	50.6 mm	61.1 mm
Weight	72 g53 g lower	125 g
Performance2
Stall torque	3.7 Nm	5.3 Nm1.6 Nm higher
Maximum speed	85 rpm21 rpm higher	64 rpm
Electrical3
Nominal voltage	14.8 V	14.8 V
Minimum voltage	12 V	12 V
Maximum voltage	18.5 V	18.5 V
Mechanical & integration4
Motor kind	Smart servo	Smart servo
Drive principle	servo actuator	servo actuator
Architecture	Integrated motor controller reducer network	Integrated motor controller reducer network
Gear ratioUse-dependent	193:1	200:1
Control & communication3
Encoder	integrated position sensor	integrated position sensor
Communication interfaces	RS485	RS485
Control modes	position;velocity;current/PWM;feedback	position;velocity;current/PWM;feedback

AROBOTISROBOTIS RX-28

BROBOTISROBOTIS RX-64

Physical4

LengthUse-dependent

Part A35.5 mm

Part B41 mm

WidthUse-dependent

Part A35.6 mm

Part B40.2 mm

HeightUse-dependent

Part A50.6 mm

Part B61.1 mm

Weight

Part A72 g53 g lower

Part B125 g

Performance2

Stall torque

Part A3.7 Nm

Part B5.3 Nm1.6 Nm higher

Maximum speed

Part A85 rpm21 rpm higher

Part B64 rpm

Electrical3

Nominal voltage

Part A14.8 V

Part B14.8 V

Minimum voltage

Part A12 V

Part B12 V

Maximum voltage

Part A18.5 V

Part B18.5 V

Mechanical & integration4

Motor kind

Part ASmart servo

Part BSmart servo

Drive principle

Part Aservo actuator

Part Bservo actuator

Architecture

Part AIntegrated motor controller reducer network

Part BIntegrated motor controller reducer network

Gear ratioUse-dependent

Part A193:1

Part B200:1

Control & communication3

Encoder

Part Aintegrated position sensor

Part Bintegrated position sensor

Communication interfaces

Part ARS485

Part BRS485

Control modes

Part Aposition;velocity;current/PWM;feedback

Part Bposition;velocity;current/PWM;feedback

Product sources

Product sources used by this comparison

ROBOTIS RX-28Open source ↗

ROBOTIS RX-64Open source ↗