Ball Screw (STB)

These compact and efficient solar tracking jacks are designed to precisely position loads at speeds up to 3.75 inches per minute.

STB - Ball Screw Jacks
Part Number Typical Dynamic Load Capacity* Typical Staic Load Capacity*
STB-4.5 9,000 lb. 20,000 lb.
STB-11 22,000 lb. 40,000 lb.
STB-44 88,000 lb. 88,000 lb.

 

* Actual load capacities may vary depending on desired life and travel speed requirements.

Solar Tracking Jack - Ball

Ball Screw Solar Tracking Jack (STB) Dimensions (in inches)
ModelABCDEFGHJKLMNPQRSTU
STB-4.5 12.750 5.500 15.5 1.0 1.75 0.75 1.250 2.50 4.9 2.06 0.625 0.188 Sq x 1.0 Lg 3.75 6.0 1.250 5/16-18 5.00 1.25 1.50
STB-11 12.750 5.750 19.5 1.5 2.75 1.25 1.500 3.00 5.1 2.06 0.625 0.188 Sq x 1.0 Lg 3.75 6.5 1.750 5/16-18 5.00 1.75 2.00
STB-44 20.000 9.500 27.5 2.5 4.50 1.78 2.375 4.50 8.0 3.13 1.000 0.250 Sq x 1.25 Lg 5.00 13.0 2.750 3/8-16 8.00 3.00 4.00

  • Aluminum housing
  • Alloy screw
  • Customer to provide trunnion pins. They should be made of steel with hardness greater than 30 HRC, yield strength greater than 110 KSI, and supported within 1/16 inch of the actuator housing.
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Files must be less than 2 MB.
Allowed file types: gif jpg png tif pdf dwg jpeg jax.

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If you need us to repair your product, request a Returned Goods Authorization (RGA) number by email, phone, or simply fill out the form above and mention "RGA" in message box.

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