Skip to content
Price match 30-day returns* Talk to an astronomer before you buy
Pegasus Astro SCT Bracket, Pulley, Belt, Bolts Kit for SCT 6.8.9.25''

Pegasus Astro SCT Bracket, Pulley, Belt, Bolts Kit for SCT 6, 8, 9.25''

by Pegasus Astro
SKU PEG-SCT68925-KIT
CA$121.00 - CA$121.00
CA$121.00
CA$121.00 - CA$121.00
CA$121.00
Price Match Policy!
  • Precise 1.8° step angle bipolar stepper motor
  • Zero-backlash pulley and belt design
  • Lightweight 280g total package
  • Robust "Margarita" style anodized aluminum bracket
  • Wide compatibility with Celestron SCT, EdgeHD, and RASA scopes
Backordered
Request Stock Alert
Availability Info
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • SCT Bracket, Pulley, Belt, Bolts Kit for SCT 6, 8, 9.25"

    This Motor Focus Kit for SCTs delivers precise, repeatable automated focusing with a zero-backlash bipolar stepper motor that features a 1.8° step angle and 0.8Kg/cm of holding torque. The entire assembly, including the specialized bracket, weighs only 280g and operates reliably in temperatures from -40°C to +80°C. Its pulley-and-belt design ensures your motor doesn't collide with a focal reducer or filter wheel, making it an essential upgrade for remote astrophotography.

    Zero-Backlash Focusing with a 1.8° Bipolar Stepper Motor

    The core of this kit is a high-torque bipolar stepper motor engineered for the fine focus adjustments required in astrophotography. With a 1.8° step angle, the motor can execute extremely small movements for critical focusing, while its 0.8Kg/cm holding torque is more than sufficient to move the primary mirror of a Celestron SCT without slipping. The belt-driven system completely eliminates the backlash inherent in gear-based focus motors, meaning your autofocus routines run faster and more accurately without the need for software compensation.

    Universal "Margarita" Bracket for Celestron SCTs & RASAs

    The included black anodized aluminum bracket features a unique "margarita" design that provides broad compatibility across the Celestron lineup, including Classic SCT, EdgeHD, and RASA models from 6" to 14" apertures. This design positions the motor away from the rear cell of the telescope, creating critical clearance for accessories like focal reducers and large filter wheels. The rigid construction prevents flexure, ensuring the motor's precise movements are transferred directly to the focuser knob without any mechanical slop.

  • What motor controller do I need for this SCT Motor Focus Kit?

    This kit contains the motor and mechanical hardware only. You will need a compatible external motor controller to operate it, such as the Pegasus Astro Dual Motor Focus Controller, eXternal Motor Controller, or Ultimate Powerbox v2.

    Will this SCT Motor Focus Kit fit my Celestron EdgeHD 8"?

    Yes, the kit is designed to be compatible with Celestron EdgeHD and Classic SCT telescopes, including the 8" model. This specific kit includes the 13mm bore size pulley required for the 6", 8", and 9.25" versions.

    Why does this SCT Motor Focus Kit use a belt and pulley system?

    The belt and pulley system offers two key advantages. First, it provides zero-backlash operation for highly accurate and repeatable focusing. Second, it offsets the motor from the telescope's rear cell, preventing physical collisions with other imaging equipment like focal reducers, off-axis guiders, or filter wheels.

    Can I use this motor focus kit on a non-Celestron SCT, like a Meade?

    While the bracket was designed specifically for Celestron SCTs, it has been observed to fit some Meade SCT models that feature a similar round focus knob. However, compatibility is not guaranteed. It is best to compare your Meade focuser to the product images or contact us for confirmation before purchasing.

    How difficult is the installation of this SCT Motor Focus Kit?

    Installation is straightforward. The kit includes all the necessary screws and hardware to attach the bracket to the telescope's rear cell and mount the motor. You will remove the stock rubber focuser knob, attach the pulley, mount the bracket, and then install the motor and timing belt.

    Will this kit work for planetary imaging with my Celestron 9.25" SCT?

    Absolutely. Automated focusing is critical for high-resolution planetary imaging. The 1.8° step angle allows for the fine adjustments needed to achieve perfect focus on targets like Jupiter's Great Red Spot or the Cassini Division in Saturn's rings, especially when seeing conditions are changing rapidly.

  • Motor Type Bipolar Stepper Motor, Zero Backlash
    Step Angle 1.8 deg
    Holding Torque 0.8Kg/cm
    Detent Torque 0.18Kg/cm
    Enclosure Dimensions 52 mm x 58 mm x 35 mm
    Weight (with bracket) 280g
    Operating Temperature -40 °C to +80 °C

    • Black Anodized Aluminum Bracket for Celestron SCT

      × 1

    • Timing Belt

      × 1

    • GT2 Pulley (13mm bore for 6", 8", 9.25" SCT)

      × 1

    • M3x6mm Screws

      × 4

    • Metric Screws

      × 3

    • Plastic Washers

      × 3

    • RJ45 to RJ45 Cable (1 meter)

      × 1

  • Pegasus Astro 2-Year Warranty