General Specifications:
The 1EM-1 series motors adhere to international standards including IEC 34, VDE 0530, and ISO 2373. They offer IP55 protection, IC 0141 cooling, and Class F insulation with overtemperature in Class B. The motors are balanced to Class N with a half key and feature a cast iron frame, end shields, and terminal box. Bearings are double shielded and greased for life for sizes 80-160, while sizes 180-260 have grease facilities.

Efficiency and Performance:
These motors are classified as EFF1 under the EU efficiency classification, indicating high efficiency. Efficiency levels vary by motor size and pole number, with specific percentages provided for 2-pole and 4-pole motors ranging from 1.1 kW to 90 kW.

Technical Data:
Detailed tables in the document list efficiency percentages, rated outputs, and performance metrics for various motor sizes and configurations. Information on starting current, rated torque, and maximum torque is also included.

Dimensions and Tolerances:
Dimensions for different motor models are provided, along with tolerances for critical measurements, allowing some flexibility in application.

Bearings:
The document specifies the types of bearings used in different motor models, detailing the bearing type and configuration for both the drive end and non-drive end.

Legal and Proprietary Information:
This document is proprietary to FIMET S.p.A., and reproduction without permission is prohibited. The company reserves the right to modify product characteristics without notice.