NEMA 23 57 MM Stepper Ball Screw Linear Actuator
The NEMA 23 ball screw linear actuator delivers high-force, high-precision linear motion for demanding automation and motion control applications. Designed for industrial automation, CNC equipment, semiconductor manufacturing, packaging machinery, and material handling systems, it provides smooth positioning, excellent repeatability, and higher efficiency than traditional lead screw actuators. Its robust 57 mm frame size and low-friction ball screw design make it an ideal solution for OEMs requiring reliable thrust, accurate positioning, and long service life.
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Overview
Ball Screw Driven
Ball screw construction supports efficient linear motion, high positioning accuracy, and improved mechanical performance.
Compact 57 mm Frame
NEMA 23 / 57 mm frame size for compact OEM assemblies.
External Configuration
External actuator style is available for guided mechanical systems that already support the load.
Configurable Options
Available with screw end machining and encoder options for OEM integration.
Motor Characteristics
Swipe left or right to view the full table.
| Model No. | Rated Voltage[V] | Current[A [RMS] ] | Resistance[Ω] | Inductance[mH] | Lead Wire No. | Motor Length "L"[mm] |
|---|---|---|---|---|---|---|
| 23E2120 | 3.5 | 2 | 1.75 | 4.1 | 4 | 45 |
| 23E2130 | 2.4 | 3 | 0.8 | 1.7 | 4 | 45 |
| 23E2225 | 5 | 2.5 | 2 | 5.2 | 4 | 65 |
| 23E2240 | 2.8 | 4 | 0.7 | 2 | 4 | 65 |
Ball Screw Specification
NEMA 23 ball screw actuators are available with the following ball screw options.
| Specification | 1002 | 1004 | 1005 | 1010 | 1015 | 1020 | 1202 | 1210 |
|---|---|---|---|---|---|---|---|---|
| Ball Size | Ф1.5875 | Ф2.0 | Ф2.0 | Ф2.0 | Ф2.0 | Ф1.5875 | Ф1.5875 | Ф2.381 |
| Number of thread | 1 | 1 | 1 | 2 | 2 | 4 | 1 | 2 |
| Thread direction | Right | |||||||
| Shaft root dia. | Ф8.6 | Ф8.2 | Ф8.2 | Ф8.4 | Ф8.4 | Ф8.7 | Ф10.6 | Ф10.2 |
| Number of circuit | 3.7×1 | 2.7×1 | 2.7×1 | 1.6×2 | 1.6×2 | 0.7×4 | 3.7×1 | 1.7 x 2 |
| Shaft, nut material | SCM415H | |||||||
| Surface hardness | HRC58~62 | |||||||
| Anti-rust treatment | Anti-rust oil | |||||||
| Grade | C7 | |||||||
| Nute size | A | B | C | D | H | W | X | E | Axial play (mm) | Dynamic load[N] | Static load[N] |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BS1202 | 37 | 5 | 28 | 20 | 24 | 29 | 4.5 | ≤0.02 | 1600 | 3700 | |
| BS1205 | 40 | 10 | 30 | 24 | 30 | 32 | 4.5 | 15 | ≤0.02 | 6610 | 13160 |
| BS1210 | 40 | 10 | 42 | 24 | 30 | 32 | 4.5 | 27 | ≤0.02 | 6420 | 12870 |
| BS1220 | 40 | 5 | 46 | 24 | 24 | 32 | 4.5 | 37 | ≤0.02 | 6700 | 10100 |
Dimensional Drawings
External dimensional drawing. Click to enlarge.
Speed Thrust Curves
Single stack speed thrust curve. Click to enlarge.
Double stack speed thrust curve. Click to enlarge.
Test condition: Testing voltage and driver model per source product page. Motor thrust changes with different voltage and driver selections. A 50% thrust margin is recommended.
Available Options
EK2 encoder photo. Click to enlarge.
EK2 encoder drawing. Click to enlarge.
| Resolution(CPR) | 50 | 100 | 192 | 200 | 250 | 256 | 360 | 400 | 500 | 720 | 900 | 1000 | 1250 | 2000 | 2500 | 4000 | 5000 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Single ended output | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | ||||
| Differential output | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q |
EK3 encoder photo. Click to enlarge.
EK3 encoder drawing. Click to enlarge.
| Resolution(CPR) | 64 | 100 | 200 | 500 | 1000 | 1800 | 2000 | 2500 | 3600 | 4000 | 5000 | 7200 | 8000 | 10000 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Single ended output | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||||
| Differential output | A | B | C | D | E | F | G | H | I | J | K | L | M |
Screw end machining. Click to enlarge.
Brake option. Click to enlarge.
Brake option. Click to enlarge.
Brake option. Click to enlarge.
| Rated voltage | DC 24V ± 5% |
|---|---|
| Resistance | 141Ω ± 10% |
| Power | 5W |
| Hold torque | >2N.M |
| Insulation | B |
| Insulation resistance | >100MΩ (DC500V) |
| Dielectric strength | AC 1000V for 1 sec |
| Retraction time | 50ms |
| Release time | 50ms |
| Gyration gap | 1° |
| Emergency brake cycle | 200 cycles |
| Lifetime | 500,000 cycles |
| Noise level | <60db |
Customization Options
DINGS’ Motion USA customizes Stepper Linear Actuators, PM Stepper Linear Actuators, Slide Actuators, and Voice Coil Motors for OEM applications.
Motor Platform
NEMA size, stack size, motor type, stepper or BLDC motor options, voltage and current ratings, windings, insulation class, force, torque, and speed.
Linear Motion Design
Stroke length, ball screw selection, shaft configurations, end machining, lubrication, and actuator style.
Electrical Integration
Cabling, connectors, lead wire details, harness routing, winding adjustments, and electrical requirements for the application.
Environmental Requirements
Coatings, IP ratings, clean room capabilities, lubrication requirements, and application-specific material or protection needs.
Resources
Downloads
Part Number Construction
1. Motor Size
23 = NEMA 23 / 57 mm frame size.
2. Motor Type
E = External linear actuator.
3. Step Angle
2 = 2-phase, 1.8° step angle. 4 = 2-phase, 0.9° step angle.
4. Motor Length
1 = Single stack. 2 = Double stack. 3 = Triple stack.
5. Rated Current / Phase
XX = X.X A / phase.
6. Ball Screw Code
Ball screw code from the selection table.
7. Number of Lead Wires
4 = 4-wire leads. 6 = 6-wire leads.
8. Ball Screw Length
XXX = ball screw length in millimeters. Example: 100 = 100 mm.
9. Thread Direction
R = Right-hand direction.
10. Ball Screw End Machining
M = Metric, U = UNC, S = Smooth, C = Custom, N = None.
11. Option
EKX = Encoder, P = Manual knob, B = Brake, X = Rear shaft, R = Encoder ready, C = Customization, N = No rear-end machining.
12. Customer Sequence Number
Customer or project-specific sequence number.
Need help selecting or customizing a NEMA 23 ball screw linear actuator?
DINGS’ Motion USA can help review thrust, speed, ball screw selection, stroke, end machining, encoder requirements, cabling, lubrication, and clean room requirements for your application.