Custom Size Timing Belts & Precision Pulleys: Technical Specifications, Certifications, and OEM Capabilities

Custom Size Timing Belts & Precision Pulleys: Technical Specifications, Certifications, and OEM Capabilities

Dongguan Zhende Machinery Equipment Co., LTD is a professional manufacturer and one-stop procurement service provider of FA automation transmission parts, located in Dongguan, China. With a 4,500 m² factory, 40 employees, and an annual output of 120,000 pieces, the company specializes in timing belts and timing pulleys, exporting 75% of its products to the EU and USA. This guide provides the technical specifications, certifications, and customization options for timing belts and pulleys, helping procurement and engineering teams evaluate suppliers for high-precision synchronous power transmission applications.

Problem Definition: What Constraints Matter When Selecting Timing Belts and Pulleys?

When sourcing timing belts and pulleys for industrial automation, buyers must verify dimensional accuracy, material compatibility, certification compliance, and the ability to supply custom sizes. Without reliable data on tooth profiles, bore tolerances, and tensile strength, equipment performance and longevity can be compromised. This article presents verifiable specifications from a manufacturer that meets ISO, DIN, and ROHS standards, supported by TÜV-audited factory processes.

Industry Background: Growing Demand for Precision Power Transmission

The global automotive timing belt market was valued at USD 7.7 billion in 2025, with China holding the largest market share. The overall timing belt market is expected to grow at a CAGR of 4.8% through 2030. Major global players include Gates Industrial Corp, Continental AG, Bando Chemical Industries, and Mitsuboshi Belting. For OEMs and integrators, working with an ISO-certified manufacturer that offers both standard and custom solutions can reduce lead times and improve cost efficiency.

Detailed Solution: Timing Belt & Pulley Product Range and Certifications

Dongguan Zhende Machinery Equipment Co., LTD supplies HTD timing pulleys, T series timing pulleys, imperial timing pulleys, rubber timing belts (HTD and STD profiles), and PU timing belts (T, AT, and Polychain GT carbon). Below are the key technical parameters verified from the manufacturer’s product specifications.

HTD Timing Pulley

Rubber Timing Belt (HTD 8M)

The HTD 8M rubber timing belt has a pitch of 8.0 mm, overall thickness of 5.6 mm, body material of Neoprene (CR), tensile member of fiberglass cord, and hardness of 92 Shore A. Maximum allowable tensile strength is 780 N per 10 mm belt width; ultimate tensile strength is 3,120 N per 10 mm. Dimensional tolerances: width ±0.5 mm, length ±0.5 mm, thickness ±0.2 mm. It is certified to ROHS standards for the EU market.

PU Timing Belt (T5)

The T5 PU timing belt (model T PU TIMING BELT) has a pitch of 5.0 mm, overall thickness of 2.2 mm, body material of polyurethane, tensile member of steel cord, and hardness of 92 Shore A. Maximum allowable tensile strength is 393 N per 10 mm belt width, power transmission capacity up to 5 kW, and maximum rotational speed approx. 10,000 rpm.

Polychain GT Carbon Timing Belt (8MGT)

This high-performance belt features a pitch of 8.0 mm, overall thickness 5.6 mm, body material of polyurethane with carbon fiber cord tensile member and nylon fabric tooth facing. Hardness 92 Shore A, maximum belt speed up to 80 m/s, transmission efficiency up to 98%, operating temperature -54°C to +85°C. It is maintenance-free and requires no lubrication.

Certifications and Quality Assurance

All timing belts and pulleys from Zhende Machinery are covered by a ROHS product test report issued by SGS-CSTC (certificate number CANEC24017410403), valid through August 2026. Additionally, the factory passed a TÜV Rheinland Production & Trading Factory Audit (certificate 493993448_P+T), confirming compliance with production standards for timing belts and timing pulleys. The audit is valid until July 2027.

Step-by-Step: How to Select the Right Timing Belt and Pulley

1. Determine power and speed requirements – Use the maximum operating speed (up to 8,000 rpm for pulleys, up to 80 m/s for carbon belts) and power transmission capacity (up to 70 kW for AT10 belts).
2. Choose the tooth profile – HTD for high torque, T-series for general trapezoidal, imperial for legacy systems, or 8MGT for high-speed zero-backlash applications.
3. Select material and surface treatment – Aluminum for lightweight, steel/cast iron for heavy load, stainless steel for corrosive environments, with coatings such as anodized or nickel plated.
4. Specify bore, keyway, and flange – Custom bores from 3–100 mm are available; choose finished bore (H7 tolerance) or pilot bore.
5. Confirm certifications – Ensure ROHS and factory audit compliance if exporting to EU markets.
6. Request custom length/width – For belts, custom length and width with ±0.5 mm tolerance; for pulleys, custom number of teeth up to 120.

Use Cases

• Packaging machinery – HTD 8M belts and pulleys for precise indexing and high-speed conveying.
• CNC machines – T10 PU belts for spindle drives offering up to 30 kW and 10,000 rpm.
• Robotics – Polychain GT carbon belts for maintenance-free, high-efficiency actuation.
• Food processing – Stainless steel pulleys with anodized finish for washdown environments.

Comparison: HTD vs T-Series vs Imperial Timing Pulleys

Frequently Asked Questions

For OEMs, distributors, and automation integrators requiring certified, custom-sized timing belts and pulleys, Dongguan Zhende Machinery Equipment Co., LTD offers a comprehensive solution with TÜV-audited quality, ROHS compliance, and flexible lead times. Contact us to discuss your project requirements.