0.005 / 0.01 mm
Selectable travel per step
Choose a 1 mm or 2 mm lead to balance positioning resolution, linear speed and available thrust.
SP14BSA 14 mm Ball Screw Linear Actuator
Ball Screw Linear Actuator
Compact 14 mm external-drive ball screw linear actuator with 0.005 or 0.01 mm travel per step, C7 accuracy and axial clearance of no more than 0.02 mm.
Positioning accuracy
High torsional rigidity and constant torsional backlash over the entire gearbox service life ensure consistently high performance
Compactness
High torque density thanks to high performance and short design
Low maintenance
Highest quality standards for a long service life and extended maintenance intervals
Technical data
14 mm precision linear motion
Compact ball screw motion for high-precision equipment
The SP14BSA 14 mm ball screw linear actuator combines a compact stepper motor with a C7 ball screw in an external-drive configuration. Two lead options provide 0.005 or 0.01 mm travel per 1.8° step for miniature positioning mechanisms.
C7
Ball screw accuracy grade
The hardened SCM415H shaft and nut provide a compact transmission platform with axial clearance of no more than 0.02 mm.
External drive
Compact mechanical integration
The translating screw is supported by the application guide, allowing a short motor package and application-specific screw length.
Technical data
14 mm ball screw linear actuator specifications
14 mmFrame size
420–560 NRated dynamic load
1 / 2 mmBall screw lead
≤0.02 mmAxial clearance
Electrical platform
Motor electrical specifications
| Winding | Voltage | Current | Resistance | Inductance | Lead wires | Motor length | Motor weight |
|---|---|---|---|---|---|---|---|
| Standard winding | 6.6 V | 0.25 A | 22 Ω | 3.6 mH | 4 | 32 mm | 60 g |
Ball screw platform
Common ball screw specifications
| Ball diameter | Thread starts | Thread direction | Screw shaft diameter | Shaft and nut material | Surface hardness | Rust protection | Accuracy grade |
|---|---|---|---|---|---|---|---|
| Ø0.8 mm | 1 | Right-hand | Ø3.3 mm | SCM415H | HRC58–62 | Anti-rust oil | C7 |
Lead selection
Travel, nut dimensions and load ratings
| Selection | Lead | Travel per 1.8° step | Circulation | A | B | C | D | H | W | X | Axial clearance | Rated dynamic load | Rated static load |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lead option A | 1 mm | 0.005 mm | 3.7 × 1 | 19 mm | 3 mm | 13 mm | 9 mm | 13 mm | 14 mm | 2.9 mm | ≤0.02 mm | 560 N | 790 N |
| Lead option B | 2 mm | 0.01 mm | 2.7 × 1 | 23 mm | 4 mm | 19 mm | 11 mm | 15 mm | 17 mm | 3.4 mm | ≤0.02 mm | 420 N | 570 N |
Mechanical interface
External-drive dimension callouts
| Screw length | Motor length | Front step | Front pilot | Frame | Pilot square | Mounting holes | Lead wire length | Lead wire type | Nut mounting angle |
|---|---|---|---|---|---|---|---|---|---|
| L ±1 mm | 32 ±1 mm | 1.5 ±0.2 mm | Ø11 0/−0.05 mm | □14.3 mm | □11.5 ±0.2 mm | 4-M1.6, depth 3 min | 320 ±20 mm | 4 leads, AWG #30 | 30° / 30° |
Performance reference
Speed reference points
| Reference row | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Lead option B speed (mm/s) | 2 | 4 | 5 | 10 | 20 | 30 | 40 | 50 |
| Lead option A speed (mm/s) | 1 | 2 | 2.5 | 5 | 10 | 15 | 20 | 25 |
| Motor speed (r/min) | 60 | 120 | 150 | 300 | 600 | 900 | 1200 | 1500 |
| Pulse rate (pps) | 200 | 400 | 500 | 1000 | 2000 | 3000 | 4000 | 5000 |
Reference test: DS-OLS2-FPD bipolar constant-current chopper drive, 12 VDC and 100% operating current. Recommended load upper limit: 15 N. Keep at least 50% performance reserve.
Feedback option
EK6 encoder resolution selection
| Resolution (CPR) | 250 | 256 | 500 | 512 | 1000 | 1024 | 2000 | 2048 | 4000 | 4096 |
|---|---|---|---|---|---|---|---|---|---|---|
| Single-ended code | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Mechanical drawings
Dimensions, machining and feedback options
Performance curves
Thrust-speed reference
External-drive integration
Configure a compact guided positioning axis
The ball screw translates through the motor while the nut and moving load are supported by the application guide. Select the lead, screw length, end machining and optional feedback package for the target stroke and duty cycle.
- 1 mm and 2 mm ball screw lead options
- Application-specific screw length and end machining
- Optional EK6 encoder with multiple resolutions
- External guidance required for the translating load
Typical applications
Miniature precision positioning for OEM equipment
SP14BSA is designed for compact guided mechanisms that require controlled travel, low axial clearance and flexible mechanical customization.
Medical and laboratory equipment
Compact sample handling, valve positioning, dosing and miniature instrument axes.
Optical positioning
Lens adjustment, inspection modules and guided micro-positioning mechanisms.
Semiconductor equipment
Small-format transfer, alignment and fixture positioning in precision automation.
Compact robotics
End-effector adjustment, gripper mechanisms and space-constrained linear axes.
Series context
Ball screw actuator family
External-drive ball screw actuators are available in 14, 20, 28, 35, 42 and 57 mm frame sizes, with series travel options from 0.005 to 0.1 mm per step. Integrated DLG mechanisms are available for selected 28 and 42 mm products; SP14BSA uses the external-drive layout shown on this page.
ProductSP14BSA
Frame size14 mm
ConfigurationExternal drive
Travel per step0.005 / 0.01 mm
Selection inputsStroke, load, speed, duty cycle, guidance and end machining
Configure SP14BSA
Discuss your precision linear-motion requirement
Send the required stroke, load, target speed, positioning resolution, duty cycle, installation orientation and screw-end drawing for engineering selection support.
Contact us
Would you like to learn more about our solutions?
We would be happy to advise you—personally, competently, and tailored to your requirements.
Perfection in a new dimension
Further Information
Short delivery times available for selected product configurations.
The TP+ HIGH TORQUE enables maximum torque density and maximum torsional rigidity—ideal for demanding applications with dynamic load changes and high positioning accuracy.
alpha Advanced Line gearboxes with increased durability and food-grade lubrication available.
The TP+ for coordinated pinion-rack systems for medium to high requirements. Typical areas of application in wood, plastic, and composite processing, in machining centers, or in automation.
With cynapse® and smart services, you can unleash the full potential of your drive system: sensor data is processed, visualized, and analyzed intelligently. Find out how the combination of gearboxes with cynapse® and our Smart Services can make your digital production faster, safer, and more efficient.
Related products
Related products
-
Ball Screw Linear Actuator
SP42BSA 42 mm Ball Screw Linear Actuator
-
Ball Screw Linear Actuator
SP35BSA 35 mm Ball Screw Linear Actuator
-
Ball Screw Linear Actuator
SP28BSA 28 mm Ball Screw Linear Actuator
-
Precision Micro Motors & Actuators
SP42SLA 42 mm Sliding Lead Screw Linear Actuator
