Aluminum 5 Slot A Type V-Shaped Pulley by CNBTR 5 Step 14mm Belt

Description

Product Overview

The CNBTR aluminum V‑shaped pulley is a precision‑engineered component designed for demanding industrial power‑transmission applications. Constructed from high‑grade aluminum alloy, the pulley offers an excellent balance of strength, lightweight handling, and corrosion resistance, making it suitable for continuous operation in harsh environments. Its five‑slot configuration is specifically matched to A‑type V‑shaped timing belts, providing a secure grip that minimizes slippage and maximizes torque transfer. The pulley is available with outer diameters ranging from 54 mm to 150 mm, allowing engineers to select the optimal size for their speed‑ratio requirements while maintaining a consistent 14 mm belt width across all models. The design incorporates smooth, machined surfaces on each slot to reduce wear on the belt and extend service life, while the aluminum body dissipates heat efficiently during high‑speed operation.

Usage

This pulley excels in a variety of motor‑driven systems, including CNC machines, robotic arms, conveyor belts, and automated packaging equipment. Its robust construction makes it ideal for applications where precise timing and reliable power delivery are critical, such as in gear‑driven drives, gearboxes, and synchronized multi‑axis platforms. The 5‑step design enables users to fine‑tune rotational speed and torque output by selecting the appropriate outer diameter, providing flexibility for both low‑speed, high‑torque scenarios and high‑speed, low‑torque requirements. The pulley’s compatibility with standard 14 mm wide A‑type timing belts simplifies inventory management and reduces the need for custom‑fabricated components, allowing seamless integration into existing machinery without extensive redesign.

Why Choose Us

Choosing the CNBTR aluminum V‑shaped pulley means selecting a product backed by rigorous quality control processes and a commitment to engineering excellence. Each pulley undergoes dimensional verification, material composition testing, and surface finish inspection to ensure it meets or exceeds industry standards for timing belt drives. The aluminum alloy used is sourced from reputable suppliers and undergoes heat‑treatment to achieve optimal hardness and fatigue resistance, guaranteeing long‑term durability even under cyclic loading conditions. In addition, CNBTR provides comprehensive technical documentation, including detailed CAD drawings and load‑capacity charts, to assist engineers in selecting the correct pulley size for their specific application.

Beyond the product itself, CNBTR offers responsive customer support and a straightforward warranty policy that covers manufacturing defects for a full year from the date of purchase. Our technical team is available to answer installation questions, provide troubleshooting assistance, and recommend complementary components such as tensioners and idler pulleys to create a complete, reliable power‑transmission system.

Key Features

• Five‑slot design delivers secure grip for A‑type V‑shaped timing belts, reducing slip and wear.
• High‑quality aluminum construction offers lightweight strength and excellent heat dissipation.
• Multiple outer diameters (54 mm‑150 mm) provide flexible speed and torque customization.
• Standard 14 mm belt width compatibility simplifies inventory and installation.
• Dedicated after‑sales support and one‑year warranty ensure confidence and peace of mind.

Technical Specifications

Material: High‑grade aluminum alloy
Belt Width Compatibility: 14 mm (A‑type V‑shaped)
Number of Slots: 5
Outer Diameters: 54 mm, 76 mm, 102 mm, 128 mm, 150 mm
Weight: Approximately 0.61 kg (1.34 lb) per unit
Package Dimensions: 7.83 in × 5.87 in × 4.41 in

Installation Guide

Begin by selecting the pulley size that matches the desired speed ratio for your motor shaft. Ensure the shaft is clean, free of debris, and properly aligned before mounting the pulley. Use a set of compatible set screws or a keyway to secure the pulley to the shaft, tightening to the torque specifications provided in the technical data sheet. Verify belt tension using a calibrated tension gauge; the belt should exhibit a slight deflection under load but remain firmly seated in each slot. Finally, rotate the motor manually to confirm smooth belt engagement and check for any abnormal noise or vibration.

Maintenance Tips

Regularly inspect the pulley for signs of wear, such as surface scoring or deformation of the slots. Clean the pulley with a soft, lint‑free cloth and a mild solvent to remove oil, dust, or debris that could compromise belt grip. Periodically check the set screws or keyway fasteners for loosening, especially after prolonged operation or exposure to vibration. Replace the pulley if any cracks, excessive wear, or corrosion are observed, as these conditions can lead to premature belt failure and reduced system efficiency.

Compatibility

The CNBTR pulley is compatible with a wide range of A‑type V‑shaped timing belts from leading manufacturers, including those with reinforced fabric or polymer cores. Its standard 14 mm width aligns with most industrial timing belt catalogs, ensuring seamless integration with existing drive systems. The pulley’s design also accommodates optional accessories such as tensioners, idler pulleys, and belt guards, allowing engineers to build comprehensive, reliable power‑transmission solutions tailored to specific operational demands.

FAQ

What is the maximum load capacity for the 54 mm diameter pulley?

The 54 mm outer diameter model is rated for a maximum continuous torque of approximately 12 Nm, assuming a 14 mm belt and standard operating speeds up to 3000 RPM. For higher torque applications, selecting a larger diameter pulley is recommended to distribute load more evenly across the belt.

Can this pulley be used with belts other than the 14 mm A‑type?

While the pulley is optimized for 14 mm A‑type V‑shaped belts, it can accommodate other belt profiles of similar width, provided the belt’s cross‑section matches the slot geometry. However, using non‑specified belt types may affect performance and should be validated through testing.

Is the aluminum material suitable for high‑temperature environments?

The aluminum alloy used in this pulley maintains structural integrity up to approximately 150 °C (302 °F). For applications exceeding this temperature range, a steel or stainless‑steel pulley may be more appropriate to avoid thermal deformation.

How do I determine the correct pulley size for my speed ratio?

Calculate the desired speed ratio by dividing the motor shaft speed by the driven shaft speed. Choose a pulley diameter that, when paired with the corresponding belt length and tension, achieves this ratio while staying within the recommended torque limits. CNBTR provides a speed‑ratio calculator in the product documentation to assist with this selection.

What warranty does CNBTR offer on this pulley?

CNBTR provides a one‑year limited warranty covering manufacturing defects. The warranty does not cover damage caused by improper installation, misuse, or external factors such as corrosion or accidental impact. Contact our support team for warranty claims and replacement procedures.