3M-20T-11W 10mm Bore Big Step Timing Belt Pulley Aluminum Alloy

Description

Product Overview

The 3M-20T-11W timing belt pulley is engineered for high‑performance power transmission in a wide range of industrial settings. Featuring a 10 mm bore and a big‑step tooth profile, this pulley is optimized for 10 mm width belts, delivering smooth and reliable motion control. The pulley is fabricated from a high‑strength aluminum alloy, which provides an excellent strength‑to‑weight ratio, superior corrosion resistance, and excellent heat dissipation. Its 3 mm pitch and arc‑shaped teeth ensure precise engagement with the timing belt, reducing slip and wear over time.

Designed with a set‑screw mounting system (2×M4), the pulley can be securely attached to shafts ranging from 4 mm to 12 mm in diameter, offering flexibility for various machine configurations. The big‑step design increases the tooth height, allowing for higher torque transmission without increasing the overall pulley diameter. This makes the 3M-20T-11W an ideal choice for compact machinery where space is limited but power demands are high.

Usage

This pulley excels in applications such as CNC machines, robotic arms, conveyor systems, and automated assembly lines. Its robust construction and precise tooth geometry make it suitable for high‑speed operations where timing accuracy is critical. The 10 mm bore accommodates standard shaft sizes commonly found in industrial equipment, simplifying retrofitting and upgrades.

Engineers and maintenance technicians appreciate the ease of installation: the pulley slides onto the shaft, aligns with the set‑screw holes, and is tightened with a simple M4 screwdriver. Once installed, the pulley provides consistent torque transfer, minimizing maintenance intervals and extending the life of both the pulley and the belt.

Because the pulley is made from aluminum alloy, it remains lightweight, reducing the overall inertia of rotating assemblies. This contributes to faster acceleration and deceleration, which is especially beneficial in dynamic systems such as pick‑and‑place robots or high‑speed packaging equipment.

Why Choose Us

Choosing the 3M-20T-11W means selecting a product backed by rigorous quality control and a reputation for reliability. Each pulley undergoes dimensional inspection to guarantee that the bore, tooth pitch, and step height meet exact specifications. The aluminum alloy is sourced from certified suppliers, ensuring consistent material properties across every batch.

Our manufacturing process includes CNC machining for precise tooth profiles and surface finishing that reduces friction. The result is a pulley that delivers smooth operation even under heavy loads. Additionally, the product is supported by MF‑Tools’ dedicated customer service team, ready to assist with technical questions, installation guidance, and after‑sales support.

We understand that downtime is costly, which is why we offer a comprehensive warranty and rapid replacement parts. When you purchase the 3M-20T-11W, you gain access to a network of service centers and a knowledgeable support staff committed to keeping your equipment running at peak efficiency.

Key Features

• High‑strength aluminum alloy construction for durability and lightweight performance
• Big‑step tooth design delivers higher torque capacity without increasing pulley size
• 3 mm pitch and arc‑shaped teeth ensure precise belt engagement and reduced slip
• Versatile 10 mm bore with set‑screw mounting (2×M4) fits shafts from 4 mm to 12 mm
• Comprehensive after‑sales support and warranty from MF‑Tools for peace of mind

FAQ

What belt width is this pulley compatible with?

The 3M-20T-11W is designed for 10 mm width timing belts, which are common in many industrial automation applications.

Can the pulley be used on shafts larger than 12 mm?

No, the maximum recommended shaft diameter is 12 mm. For larger shafts, a different model with an appropriate bore size should be selected.

Is the aluminum alloy resistant to corrosion?

Yes, the alloy used is specifically chosen for its excellent corrosion resistance, making it suitable for environments with moisture or mild chemicals.

How do I install the pulley on a shaft?

Slide the pulley onto the shaft, align the set‑screw holes, and tighten the two M4 set screws securely. No additional tools are required beyond a standard M4 screwdriver.

What is the warranty period for this product?

MF‑Tools provides a one‑year limited warranty covering manufacturing defects and material failures, along with access to technical support throughout the warranty term.