OverviewCaptive pusher lead screw linear actuators integrate the motor and lead screw so the screw is retained within the motor assembly while an internal nut drives the linear output. In the LC Series the nut is injection-molded into the motor rotor; when the rotor turns the internal nut drives the lead screw axially while the motor housing remains stationary. The output shaft is supported inside the housing, removing the need for external guides and simplifying system integration.
Key features and benefits- Compact internal architecture for space-constrained automation and positioning systems
- PTFE-coated lead screw and nut threads to reduce friction, limit wear and resist contamination
- Integrated angular contact bearings to increase thrust capacity, reduce deflection and control runout
- Design minimizes backlash and maintains positioning accuracy over life
Available sizes and formatsLC Series actuators are offered in multiple NEMA frame sizes and imperial screw diameters. Common motor frames include NEMA 08, 11, 14, 17 and 23, with several screw diameter and lead options to balance speed versus thrust requirements.
Notes / additional informationCaptive internal configuration: lead screw retained within motor assembly while the integrated nut mechanism provides linear motion of the non-rotating output shaft. Suitable for compact push-pull linear applications.
Included list of standard highlights- Standard nut injection molded into the rotor
- Available in NEMA 08, 11, 14, 17, and 23 frame sizes
- Imperial lead screw diameters: 0.138, 0.188, 0.218, 0.250, 0.375 in
Technical specifications- Series: LC Series
- Actuator type: Captive pusher lead screw linear actuator (integrated motor + lead screw)
- Nut: Injection-molded standard nut integrated into motor rotor
- Lead screw / nut coating: PTFE-coated threads (reduced friction, wear resistance)
- Bearings: Integrated angular contact bearings (improved thrust capacity, reduced deflection, controlled runout)
- Output support: Load-bearing output shaft fully supported within housing (no external guides required)
- Available frame sizes: NEMA 08, NEMA 11, NEMA 14, NEMA 17, NEMA 23
- Available imperial lead screw diameters: 0.138 in, 0.188 in, 0.218 in, 0.250 in, 0.375 in
- Example leads referenced in the collection: 0.024 in, 0.025 in, 0.20 in, 0.5 in
- Typical applications: Space-constrained automation, precision positioning, compact push-pull linear motion systems