RP23 BLDC Motor
RapidPower™ Series

Summary Details

Size: NEMA 23
Peak Torque: to 190 oz-in or 134 Ncm

Great performance at an affordable price
The ElectroCraft RapidPower™ RP23 is a compact, high-performance and high-speed brushless motor with ball-bearing construction, dynamically balanced rotors, and low audible and magnetic noise. It is compatible with three-phase brushless DC motor drives.

Additional Product Details

RP23 Outline Drawing

Model Max Length A B C D E F G H I J
Front Shaft
Diameter
Front Shaft
Length
Pilot
Diameter
Pilot
Length
Mount Hole
Pattern
Mount Hole
Spacing
Flange
External
Dimension 
Rear Shaft
Diameter
Rear Shaft
Length
Differential
Encoder
Length
RP23-26 1.6 in 0.25 in 0.81 in 1.5 in 0.06 in 0.205 in
thru holes 
1.86 in 2.25 in 0.25 in 0.45 in 0.55 in
RP23-34 2.0 in
RP23-54 3.0 in
RP23-73 4.0 in
RP23M-18 41 mm 8.0 mm 25 mm 36 mm 1.5 mm 4.5 mm
thru holes
46 mm 57 mm 6.35 mm 12.3 mm 14 mm
RP23M-24 51 mm
RP23M-38 76 mm
RP23M-52 102 mm
Technical Drawings

RP23 Speed / Torque Curves

rp23 rp23 rp23 rp23

RP23 Mechanical / Winding Data

RP23 Stack Size and Winding Models
Specifications RP23-
26V12
RP23-
26V24
RP23-
26V48
RP23-
26V90
RP23-
34V12
RP23-
34V24
RP23-
34V48
RP23-
34V160
RP23-
54V12
RP23-
54V24
RP23-
54V48
RP23-
54V160
RP23-
73V24
RP23-
73V48
RP23-
73V90
RP23-
73V160
RP23M-
18V12
RP23M-
18V24
RP23M-
18V48
RP23M-
18V90
RP23M-
24V12
RP23M-
24V24
RP23M-
24V48
RP23M-
24V160
RP23M-
38V12
RP23M-
38V24
RP23M-
38V48
RP23M-
38V160
RP23M-
52V24
RP23M-
52V48
RP23M-
52V90
RP23M-
52V160
Design Voltage (VDC) 12 24 48 90 12 24 48 160 12 24 48 160 24 48 90 160
No load speed (RPM) 3,500 5,700 7,000 8,000 4,000 4,350 5,000 7,000 2,500 3,700 4,950 6,000 3,800 4,300 5,000 5,700
Peak Torque (oz-in) 40 50 50 50 60 80 80 80 100 150 150 150 190 190 190 190
Peak Torque (Ncm) 28 35 35 35 42 57 57 57 71 106 106 106 134 134 134 134
Peak Current (Amps) 11.0 8.8 6.5 3.5 14.5 10.0 6.2 2.6 15.2 18.5 12.4 4.5 22.3 12.6 8.5 5.0
Continuous Stall Torque (oz-in) 26 34 54 73
Continuous Stall Torque (Ncm) 18 24 38 52
Continuous Stall Current (Amps) 5.3 4.6 2.6 1.6 8.6 4.6 2.5 1.1 8.7 5.7 4.2 1.6 8.3 4.7 3.1 1.9
Continuous Rated Torque (oz-in) 18.0 16.0 12.0 8.0 24.0 27.0 28.0 22.0 40.0 38.0 38.0 32.0 51.0 48.0 51.0 41.0
Continuous Rated Torque (Ncm) 12.7 11.3 8.5 5.7 16.9 19.1 19.8 15.5 28.2 26.8 26.8 22.6 36.0 33.9 36.0 29.0
Continuous Rated Current (Amps) 3.9 2.8 1.3 0.5 5.9 3.6 2.2 0.8 6.1 4.3 3.0 0.9 6.5 3.2 2.2 1.1
Continuous Rated Speed (RPM) 1,800 3,700 5,900 7,300 2,300 2,800 3,450 5,500 1,500 2,700 4,150 5,100 2,800 3,600 4,200 4,900
Voltage Constant (V / kRPM) 3.4 4.2 6.7 11.3 3.0 5.5 9.6 22.9 4.9 6.5 9.8 26.7 6.3 11.2 18.0 28.1
Torque Constant (oz-in / Amp) 4.6 5.7 9.1 15.2 4.1 7.5 13.0 30.9 6.6 8.8 13.3 36.1 8.5 15.1 24.6 38.0
Torque Constant (Ncm / Amp) 3.3 4.0 6.4 10.7 2.9 5.3 9.2 21.8 4.7 6.2 9.4 25.5 6.0 10.7 17.4 26.8
Resistance (Ohms) 0.9 1.5 3.6 9.2 0.4 1.3 3.8 21.0 0.4 0.9 1.5 12.5 0.4 1.3 3.3 7.9
Inductance (mH) 1.1 1.8 4.6 11.3 0.5 1.8 4.5 25.0 0.6 1.1 2.5 18.0 0.7 2.0 6.1 14.5
Motor Constant (oz-in / √ Watt) 4.5 7.2 6.6 7.2 6.8 7.2 9.2 10.6 10.5 13.5 13.5 12.7 12.7
Motor Constant (Ncm / √ Watt) 3.2 5.1 4.7 5.1 4.8 5.1 6.5 7.5 7.4 9.5 9.5 8.9 8.9
Electrical Constant (msec) 1.2 1.3 1.5 1.6
Mechanical Constant (msec) 9.1 9.2 6.2 5.4
Rotor inertia (oz-in-sec²) 0.0015 0.0029 0.0047 0.0071
Rotor inertia (g-cm²) 107.3 202.0 331.9 504.9
Thermal Resistance (C / Watt) 3.2 3.0 2.8 2.7
Weight (oz) 13.5 21.0 31.0 47.0
Weight (Kg) 0.4 0.6 0.9 1.3
Length (inch) 1.6 2.0 3.0 4.0
Length (mm) 40.6 50.8 76.2 101.6
Number of Poles 4 4 4 4

RP23 Connection

connection diagram
connection diagram

RP23 CAD

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ElectroCraft Rapid Delivery Program

Some versions of this product are available via ElectroCraft's Rapid Delivery Program. Lead times for these products are given in working days and stated below. Please note, these lead times may be exceeded during holiday periods or due to unforeseen circumstances. Always contact your local ElectroCraft representative for confirmation of availability.

Rapid delivery products are stocked in locations all over the World. If the product you require is not stocked in your region, you may request accelerated delivery from other areas. Please consult your local representative for more information.

Customers are responsible for all freight charges.

Rapid Delivery to:

Select the region where the product would be delivered to.

The Americas

Part Number Description Typical Lead Time
RP23-26V24-100-D 2 days
RP23-26V24-100-X 2 days
RP23-34V24-100-D 2 days
RP23-34V24-100-X 2 days
RP23-54V24-100-D 2 days
RP23-54V24-100-X 2 days
RP23-73V24-100-D 2 days
RP23-73V24-100-X 2 days

Europe, the Middle East and Africa

Part Number Description Typical Lead Time
No products available

Asia

Part Number Description Typical Lead Time
RP23-26V24-100-D 2 days
RP23-26V24-100-X 2 days
RP23-34V24-100-D 2 days
RP23-34V24-100-X 2 days
RP23-54V24-100-D 2 days
RP23-54V24-100-X 2 days
RP23-73V24-100-D 2 days
RP23-73V24-100-X 2 days