Overview: The document outlines the specifications and applications of R+W's backlash-free torque limiters, designed for precise overload protection in industrial settings. These limiters come in various models with features like single-position, multi-position, load holding, and full disengagement capabilities.

Specifications: Torque limiters range from 0.1 to 2,800 Nm, made from high-strength, hardened steel, and are maintenance-free within specified conditions. They operate between -30 to +120°C.

Applications: Suitable for machine tools, CNC machining centers, woodworking machines, automation equipment, textile machinery, industrial robots, sheet metal processing machines, printing and converting machinery, and motor drives.

Features: Key features include precise overload protection, torsionally rigid design, compact construction, low residual friction post-disengagement, and low moment of inertia. Disengagement occurs in milliseconds, with manual or automatic re-engagement options.

Models and Configurations: Models like SK1, SKN, and SKP are detailed, each with specific features and applications. Connection types include conical clamp, clamping hub, and keyway connections, configurable for various engagement types.

Technical Data: Includes tables with technical data for each model, such as adjustment range, overall length, actuation ring diameter, clamping fit length, and moment of inertia. Also covers permissible radial load capacity and fit tolerance.

Compliance and Safety: Some models are ATEX 95a certified for hazardous zones 1/21 and 2/22, ensuring safety in explosive environments.

Materials and Design: Constructed from high-strength steel, with some models featuring aluminum hubs and stainless steel bellows. Design includes clamping hubs with radial screws and tapered conical connections for backlash-free operation.

Temperature and Service Life: Operational temperature range is -30°C to +100°C, maintenance-free within specified parameters.

Optional Features: Includes sealed versions for food-grade applications and ATEX certification for explosive environments.

Keyway and Fit Tolerance: Keyways available upon request, with fit tolerance between hub and shaft specified as 0.01 – 0.05 mm.

Ordering Information: Provides ordering specifications and adjustment ranges for each model, ensuring appropriate selection for specific applications.

Specifications of Elastomer Inserts: Three types of elastomer inserts are specified, each with different Shore hardness, color, material, relative damping, and temperature range.

ATEX Torque Limiters: Designed for hazardous areas, featuring full disengagement to prevent excess friction, IP65 rated, with a 30% safety rating reduction.

General Function: R+W torque limiters use a ball detent style for overload protection, with adjustable disengagement torque and multiple re-engagement positions.

Mounting Instructions: Detailed instructions for mounting and dismounting, emphasizing proper tool use and adherence to specified ranges.

Specifications and Procedures: Includes mounting and dismounting instructions, preparation guidelines, and norms for misalignment limits, material, and temperature specifications.

Torque Limiters: Operate on a ratcheting principle with hardened steel ball bearings, requiring no maintenance when properly engaged.

Calculations and Sizing: Provides examples for calculating rated torque, emphasizing not exceeding maximum rated torque.

Additional Information: Discusses backlash-free couplings, spring characteristics, and special low-cost rust protection processes.

Introduction: R+W is a leading company in couplings for servo, NC, and stepper motor systems, with a global presence and ISO 9001 certification.

Quality and Certification: R+W's torque limiters are TÜV-certified, meeting German GPSG law requirements.

Product Development: Focuses on compact, high-torque capacity safety couplings using special materials and new manufacturing techniques.

Product Range: Includes various series of torque limiters, bellows couplings, line shafts, miniature bellows couplings, elastomer couplings, linear couplings, and polyamide couplings.

Special Features: Offers rust protection equivalent to galvanized or chrome-plated surfaces.

Contact Information: R+W America is located at 1120 Tower Lane, Bensenville, IL 60106, with contact via phone or email.