Specifications:
The document provides technical specifications for the 2619 S series DC-Gearmotors. Key parameters include nominal voltage, terminal resistance, no-load speed, speed constant, back-EMF constant, torque constant, current constant, slope of the n-M curve, rotor inductance, and rotor inertia. The housing material is plastic, and the geartrain material is metal.

Performance Parameters:
The document lists various performance parameters such as output torque, reduction ratio, output speed, weight, continuous and intermittent operation, direction of rotation, and efficiency. These parameters are provided for different gear ratios ranging from 8:1 to 1257:1.

Mechanical Specifications:
Details include dimensions and tolerances for various components such as shaft diameter, length, and play. The shaft load capacity is specified for both radial and axial loads, with optional enhancements available.

Operating Conditions:
The operating temperature range is specified from -25°C to +80°C. The document also notes the use of brass/ceramic bearings and preloaded ball bearings on the output shaft.

Additional Notes:
The document mentions that specifications are subject to change without notice and refers to additional technical information for notes on data and lifetime performance. The output speed is based on a motor input speed of 5000 min-1 at 22°C and nominal voltage.