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8125 Saran Drive Playa del Rey, CA 90293
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Sheaves

Plastic Sheaves

Focused on weight reduction, this file provides the technical parameters for sheaves made entirely of high-grade Polyamid. It explains that plastic sheaves are the most lightweight option in the portfolio, suitable for sizes up to 1000mm. The document includes technical tables for plastic sheaves with cylindrical roller bearings, detailing tread diameters from 10.24 to 30.39 inches, while also reminding users of the environmental conditions best suited for plastic materials.

Engineered for Maximum Efficiency & Lightweight Performance

The Plastic Sheave with Cylindrical Roller Bearings is the most lightweight wire rope guidance solution in the Ropeblock portfolio. Fully manufactured from high-grade Polyamid, these sheaves offer exceptional weight savings without compromising on mechanical precision, making them ideal for high-efficiency lifting systems and rapid-deployment rigging.

Maximum Safety Features
  • High-Capacity Bearings: Factory-fitted with high-performance SL04 cylindrical roller bearings for maximum radial load support.
  • Precision Load Path: Optimized groove radii (R) ensure consistent wire rope seating to reduce friction and premature fatigue.
  • Operational Guidelines: Engineered in strict alignment with the comprehensive safety information found on page 136.
  • Verified Dimensions: All critical measurements are confirmed via technical drawings prior to production to ensure absolute operational reliability.
Industrial Flexibility
  • Extensive Size Range: Available in diameters up to 1000 mm (approx. 39.37 inches), with hybrid solutions available for even larger requirements.
  • Weight Optimization: Polyamid construction provides the lightest possible profile, significantly reducing the overall weight of crane blocks and rigging assemblies.
  • Cost-Efficient Availability: Standard models are highly cost-effective and typically maintained as stock items for immediate availability.
  • Versatile Customization: While standard models are showcased, custom versions can be engineered to meet specific environmental and load conditions.

Plastic Sheave Technical Specifications

Below is a partial specification table for Polyamid plastic sheaves. Please contact our technical team for full dimensions (D1, D3, E, F) and verify suitability for your specific environmental conditions and lifting requirements.

Safety Warning: Always adhere to the recommended Working Load Limit (WLL) and ensure the sheave is used for straight or in-line pull only. Please note that plastic sheaves are not suitable for all conditions; contact our team for advice on suitability for your specific environment. Refer to the comprehensive safety documentation on pages 136-149 for maintenance and inspection procedures.