| GSM Series Overview |
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Excellent Ball Screw Replacement
The GSM Series of linear actuators from Exlar povides a cost effective solution, perfect for replacing ball screw actuators. This compact design incorporates Exlar's patented roller screw technology with an integral brushless servo motor for medium to high performance motion control applications. The GSM Series offers a completely integrated actuator, competively priced with low performance, short-lived ball screw actuators. The GSM design provides a smaller package with higher speed and load capacity than ball screws and other traditional rotary to linear conversions. GSM Series also offers 5 times the travel life of similarly sized ball screw actuators. Selection of the proper feedback configuration allows GSM Series actuators to be powered by nearly every brand of brushless motor amplifier on the market. This flexibility allows GSM Series actuators to be incorporated into the highest performance single and multi-axis motion control systems in use today. In applications varying from food and beverage packaging, to multi-axis turning centers to air-craft assembly, the GSM Series of actuators show incredible performance and durability.
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New T-LAM Segmented Lamination Technology
Exlar's new T-LAMTM technology incorporated into the motor design provides a solution with 35% more motor torque. These efficiencies are a result of the limited heat generation qualities inherent in the segmented stator design. The elimination of end turns in the stator, and the use of thermally
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| conductive potting removes the parts most suspectible to failure in a traditional motor.
Other benefits of the new T-LAM technolgoy include:
- Neodymium iron boron magnets provide high flux density and maximum motor torque.
- Thermally conductive potting of the entire stator provides increased heat dissipation and provides protection from contamination in oil-cooled units.
- Each stator segment contains individual phase wiring. External winding of individual segments provides maximum slot fill for maximum motor performance.
- Motors with T-LAM technology have Class H insulation systems compliant with UL requirements.
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Features/Characteristics
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- 2.25, 3.3 and 3.9 inch frame sizes
- 3, 5.9, 10, 12 and 18 inch strokes
- 0.1, 0.2, 0.4, 0.5 and .75 inch lead roller screws (0.75 lead on 10" stroke and under)
- 7 to 75 lbf-in torque motor availability
- Up to 33 inch per second linear speeds
- 92 to 1983 lbf thrust capacity depending on motor selection
- Front flange, rear flange, rear clevis, trunnion, side, double side or extended tie rods mounting options
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- Encoder feedback with MS style connectors
- Molded and shielded cables available
- Black anodized and gray aluminum housing
- Cost competitive with ball screw actuators
- 5 times the life of a similar sized ball screw actuator
- UL Class H insulation system compliant
- IP54 or IP65 sealing
- CE mark
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 In 2007 Exlar introduced the GSM Series Actuators as the successor to the SR Series. The table below provides information regarding the differences between the GSM and the SR Series of actuators. For the details associated with these differences see the links at the bottom of this page or go to SR overview.
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| Feature |
GSM |
SR |
| Connectors |
In-line for all sizes |
Side-by-side on SR31 and SR41 |
| Length |
Shorter |
For clevis mounting with the same pin-to-pin distance as the SR Series, select "Z" as the mounting option |
| Width |
The GSM30 is narrower than the SR31 |
Side and trunnion mounting dimensions on the GSM30 are narrower than the SR31. The GSM20 and GSM40 side and trunnion mounting dimensions are the same as the SR21 and SR41 |
| Backlash |
0.008" (0.2 mm) |
0.004" (0.1mm) |
| Coatings |
Anodized |
Anodized end caps, epoxy coated motor case |
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Specifications can be found in the following areas:
General Product Information
Mechanical and Electrical Specifications
Performance Specifications
Life Curves
Speed Force Curves
Options Discussion
Ordering Information
GSM Series Dimensions
(Downloadable .dwg files)
GSM Dimensions (Imperial)
GSM Dimensions (Metric)
System Installation
Cables and Connectors
Motor File Naming Convention
GSM Series Motor File Chart
Download Motor Data Files
GSM Series with Electro-Craft BRU Advantage or Allen-Bradley Ultra 100/200
GSM Series with Allen-Bradley Ultra3000/5000
GSM Series with Emerson EN, Epsilon and MDS Series (Most web browsers will recognize this file as a text file and open it upon left-clicking. Please right-click on the file, select "Save Target As . ." and save the file to the appropriate location for your use.)
GSM Series with Emerson Epsilon EP Series
GSM Series with Emerson UniDriveSP and SM-EZ Module
GSM Series with Kollmorgen ServoStar CD (For ServoStar 600 consult Exlar)
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