Overview

This document provides detailed technical specifications and product information for TSUBAKI's Plastic Top Chain model TPU826-USR-T and associated components such as sprockets and idler wheels. It focuses on design features, material properties, operating parameters, and installation guidelines for conveyor chain systems.

1. Plastic Top Chain TPU826-USR-T

Design and Features

• Small side flex radius of R190 enables space-saving and more compact conveyor layouts.
• Equipped with float-preventive tabs to enhance stability during operation.
• Minimum backflex radius is 38.1 mm.
• Direction of travel is specified for correct installation.

Material and Construction

• Chain pins are made of stainless steel; plastic pins are not available.
• Chain plates are made from various materials with different friction and wear properties:
• WR: Low Friction/Anti-Wear material with improved corrosion resistance against hypochlorite soda.
• ULF: Ultra Low Friction material.
• LF: Low Friction material.
• Material color coding: Brown (WR), Blue (ULF), Green (LF), White (LFW).

Operating Parameters

• Maximum allowable load: 0.98 kN (100 kgf).
• Maximum allowable speed: 100 m/min with lubrication, 50 m/min without lubrication.
• Operating temperature range: -20°C to 80°C; wet conditions rated up to 65°C.

Model Numbering and Variants

• Variants include TPU826-USR-T-LFW, LFG, LFB, ULF, and WR, indicating different wearstrip materials.
• Standard and made-to-order products are available; contact TSUBAKI representatives for custom requirements.

2. Sprockets and Split Sprockets

Specifications

• Materials: Reinforced polyamide (black), stainless steel, brass with nickel plating.
• Operating temperature range: -20°C to 80°C.
• Bolt tightening torque: 6 N·m (0.61 kgf·m).
• Do not mix sprocket halves from different sprockets during assembly.

Dimensions and Models

• Shaft diameters range from 8 mm to 12 mm.
• Teeth counts vary (e.g., 25, 30, 35, 40).
• Approximate sprocket masses range from 0.31 kg to 0.38 kg depending on size.

Additional Notes

• Steel sprockets are available upon request.
• Split sprockets facilitate easier installation and maintenance.

3. Idler Wheels

• Model example: TP-C12404T-IW.
• Material: Reinforced polyamide body, stainless steel bolts, brass with nickel plating nuts.
• Operating temperature range: -20°C to 80°C.
• Approximate mass: 0.31 kg.
• Made-to-order options and discs with integrated bearings are available.

4. Installation and Handling Recommendations

• Ensure no spaces between letters and symbols in model numbering for accuracy.
• Follow specified minimum radii for backflex and sideflex to avoid chain damage.
• Maintain proper lubrication to achieve maximum allowable speeds.
• Use correct bolt tightening torque to ensure secure sprocket assembly.
• Do not mix sprocket halves from different units to prevent mechanical failure.

5. Contact and Additional Information

• TSUBAKIMOTO CHAIN CO. Headquarters in Osaka, Japan.
• Top Chain Products Department and Global Market Development Department located in Tokyo, Japan.
• Product specifications are subject to change without notice as part of continuous improvement.

Summary of Critical Parameters