Specifications:
The document outlines various types of worm gearboxes, including APG and ASSG models. The APG series includes models such as APG 0450, APG 1250, and APG 2550, with stages ranging from 1 to 4. The maximum permanent alternating load varies from 4 N·m to 50 N·m, while the maximum radial and axial shaft loads range from 200 N to 640 N and 60 N to 200 N, respectively. Efficiency decreases with more stages, from 0.80 to 0.65. Gear transmission ratios vary significantly, from 4-9 to 189-2653.

ASSG Models:
The ASSG series includes types like ASSG WF, ASSG W, ASSG HF, and ASSG H, with gear transmission ratios from 5 to 75 and efficiency ranging from 0.2 to 0.83. Torque is up to 28 N·m, with a maximum power loss of 37. The weight is approximately up to 1500.

Features:
These gearboxes are maintenance-free, have a shaft diameter from 8 mm to 18 mm, and a length up to 100 mm. They are designed for noiseless operation and housed in metal. Special executions are available upon request. They have a protection class of IP 40 and are loadable up to 28 N·m. They can be combined with synchronous, direct current, and stepper motors.

Example Execution:
The document provides examples of execution with synchronous motors, stepping motors, and constant-speed servomotors, including ATEX compliance.

Additional Information:
Further translations and customizations are available upon request. More information can be found at www.astro-motoren.de or by contacting the provided phone number.