Overview

This document is a technical dimension sheet and preliminary selection guide for Cubical Worm Gear Screw Jacks (CWJ) ranging from nominal sizes 0.5 to 100. It is certified under ISO 9001:2008 by KEMA NVT and the Dutch Council for Accreditation, ensuring quality standards compliance.

Product Description

The CWJ series includes Type 1 and Type 2 worm gear screw jacks designed for linear actuation applications. The document provides detailed dimensional data for nominal sizes CWJ 0.5 to CWJ 25 and CWJ 35 to CWJ 100, covering various head types (I to IV) and lifting screw specifications.

Dimensional Specifications

Dimensions are provided for multiple parameters including lifting screw thread (Tr), head types, bolt sizes, lengths (L1, L3, L4, L5, L6, L7, L8, L16, L17), diameters (D1, D2, D3, D4, D5, D6, D7, D8, D11, D12, D13, D14), and other mounting features (F2, S1, C1, A1, A2, A3, A4, A5). These dimensions are critical for installation and integration into mechanical systems.

Performance Parameters and Selection Data

The preliminary selection table includes key performance metrics for CWJ models:

• Nominal Size and Lifting Screw Thread: Sizes from 0.5 to 100 with corresponding screw threads.
• Gear Ratios: Typical ratios include 10:1, 12:1, 30:1, 32:1, and 36:1.
• Total Efficiency: Efficiency values vary by ratio, generally ranging from 0.09 to 0.23.
• Screw Torque at Maximum Lifting Capacity: Torque values are specified in Newton-meters (Nm), indicating the torque required at max load.
• Maximum Permissible Torque at Worm Shaft: Defines the torque limits to avoid mechanical failure.
• Weight per 100 mm: Weight of the screw, push rod, and protection tube, important for handling and support design.
• Max Lifting Capacity: Capacities range from 10 kN up to 1000 kN, covering a wide range of industrial applications.
• Lift per Turn of Worm: Indicates the linear displacement per worm shaft revolution, varying with gear ratio.
• Screw Efficiency: Efficiency of the lifting screw mechanism, important for energy consumption and performance.
• Worm Torque at Max Lifting Capacity: Torque required at the worm gear for maximum load lifting.

Product Variants and Accessories

The document references different product variants including Cubical Worm Gear Screw Jacks (CWJ), Classic Worm Gear Screw Jacks, Bevel Gear Screw Jacks, Ball Screw Jacks, and associated lifting systems such as electric cylinders and UV joints. It also mentions worm reducers and bevel gearboxes (FG and L Drive).

Manufacturer and Contact Information

Manufacturer: Gears and Gear Drives (India) Pvt Ltd
Address: No.14, 2nd Main 2nd Cross, Sai Layout, Bhattrahalli, Virgonagar Post, Bangalore - 560049
Phone: +91-8088931951
Email: [email protected]
Website: www.gearsandgeardrives.com

Critical Information and Best Practices

• Ensure selection of the correct nominal size and gear ratio based on required lifting capacity and efficiency.
• Verify maximum permissible torque values to prevent mechanical overload.
• Consider weight implications for system design and support structures.
• Use the detailed dimensional data for precise integration and mounting.
• Refer to ISO 9001:2008 certification for quality assurance.

Summary

This technical sheet provides comprehensive dimensional and performance data for selecting and integrating Cubical Worm Gear Screw Jacks in linear actuation applications. It supports engineers in choosing the appropriate model based on load, efficiency, torque, and size requirements, ensuring reliable and efficient mechanical operation.