Description
Product Overview
The HTD 3M 12‑tooth K‑type timing pulley by JNMING is engineered for high‑performance power transmission in a wide range of industrial applications. Constructed from hardened steel with a precision‑cut tooth profile, the pulley delivers consistent timing accuracy and minimal backlash. Available in multiple bore diameters—4 mm, 5 mm, 6 mm, and 6.35 mm—it can be paired with belts of either 10 mm or 15 mm width, giving engineers the flexibility to match the pulley to existing drive systems without the need for additional adapters. The compact 10 mm or 15 mm belt width options reduce overall system weight while maintaining the high‑speed capability required for modern CNC machinery, milling equipment, gear shapers, drilling machines, and hobbing machines. The product dimensions (1.18 x 0.79 x 0.39 inches) and lightweight design (3.53 ounces) make it easy to install in tight spaces, and the low‑friction surface ensures efficient power transfer with reduced wear on both the pulley and the belt.
![[Product front view showing all components]](https://www.morixo.store/wp-content/uploads/2026/07/a9568572fd664f529c24f341f6e5f113.jpg)
Usage
This timing pulley is suited for a variety of demanding environments. In CNC machining centers, it synchronizes spindle rotation with tool carriage movement, guaranteeing precise cuts and repeatable patterns. In milling machines, the pulley drives the feed rollers, providing smooth and consistent material removal. Gear shapers benefit from the pulley’s accurate tooth engagement, which minimizes gear tooth errors and extends tool life. The robust construction also makes it appropriate for high‑speed drilling rigs where rapid belt speeds are essential for maintaining productivity. Because the pulley can accommodate both 10 mm and 15 mm belts, it is compatible with standard HTD 3M belts used across the industry, simplifying inventory management and reducing downtime during maintenance or equipment upgrades. Its design tolerates temperatures typical of industrial workshops, and the hardened steel resists corrosion, ensuring reliable operation even in harsh, dusty, or oily conditions.
Why Choose Us
Choosing JNMING means selecting a partner committed to quality and precision. Each pulley undergoes rigorous testing for dimensional accuracy, tooth profile conformity, and bore concentricity, guaranteeing that the product meets or exceeds ISO standards for timing pulleys. Our manufacturing process incorporates heat‑treatment cycles that enhance surface hardness, reducing wear and extending service life. We provide comprehensive technical support, including installation guidelines, compatibility charts, and troubleshooting assistance, ensuring that customers can integrate the pulley into their systems with confidence. In addition, JNMING offers a responsive after‑sales service program that includes replacement parts and warranty coverage, reflecting our dedication to long‑term customer satisfaction. By leveraging advanced CNC machining and quality control technologies, we deliver a product that consistently performs under the high‑speed, high‑torque demands of modern industrial equipment.
Key Features
- Precision‑cut 12‑tooth design ensures accurate timing and minimal backlash.
- Multiple bore sizes (4‑6.35 mm) provide flexibility for various shaft diameters.
- Compatible with 10 mm and 15 mm HTD 3M belts for versatile installation options.
- Hardened steel construction offers high‑speed capability and long‑lasting durability.
- Dedicated technical support and warranty service for peace of mind.
FAQ
What belt width should I select for my machine?
Choose the belt width that matches the drive system’s specifications. The 10 mm belt is ideal for compact, high‑speed applications, while the 15 mm belt provides greater torque capacity for heavier loads.
Can this pulley be used with belts other than HTD 3M?
While the pulley is optimized for HTD 3M belts, it can work with other timing belts that share the same pitch and tooth profile, provided the belt width matches the 10 mm or 15 mm options.
Is the pulley suitable for high‑temperature environments?
Yes, the hardened steel material tolerates typical industrial temperature ranges and maintains its dimensional stability under continuous operation.
How do I determine the correct bore size for my shaft?
Measure the shaft diameter accurately with a caliper. Select the bore size that matches the measured diameter: 4 mm, 5 mm, 6 mm, or 6.35 mm.
What is the warranty period for this product?
JNMING provides a one‑year limited warranty covering material defects and workmanship, along with access to our technical support team for installation assistance.




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