Overview Structure Specifications Item Number: PT-GD205 Rotation Range: 360 ° of Continuous Rotation Diameter of Platform: 300mm Drive Mechanism: Worm Gear Worm Gear Ratio: 288 : 1 Stepper Motor (1.8 °): 57BYG - Stepping Motor with 2-Phases & 1.8 ° of Step Angle Material Finish: Aluminum Alloy - Black-Anodized Load Capacity: 55Kgs Weight: 7.9kgs Accuracy Specifications 1 Design Resolution: 0.01 °=36 , Non-MS Driver; 0.0005 °=1.8 , 20MS Driver 2 Rotational Velocity (Max): 25 °/sec 3 Repeatability: 0.005 °=18 4 Absolute On-Axis Accuracy: 0.01 °=36 5 Run-Out of Top Plate: 10 m 6 Backlash: 0.005 °=18 7 Eccentricity: 20 m 8 Lost Motion: 0.005 °=18³ 9 Parallelization: 100 m The products can be produced according toyour needs if it don't meet your need. The regular stage without limit switch and home position, but can add according to requirements Use for .: High Precision Motorized Rotation Stages using New construction ,new technology;the key index has up to the international level of the similar products by strictly inspection .This series products are used to laser precision processing,three dimensional scanning measurment system and so on . Material: Worm and worm wheel has adopted durable to friction material ,high reliable accuracy of rotation . High precision ,ultra steelaxises of importing ,achieve high precision, high load stable motion.Outer circle has scale, interface , convenience for signal s output. Performance: 1. Prototype stepper motor57 stepper motor (1.8 °). Servo motor available for replacement on request 2. Fine steel rotary shoe, high accuracy, massive loading capacity and long using life. 3. Fine grinding worm drive with comfortable movement and backlash can almost ignored. 4. Clearance elimination design. 5. The motor is connected with the worm via high quality elastic coupling, synchronized drive without noise. 6. Scaling on the outer ring of the platform, easy scale reading.