Huishi
Huishi
High-precision industrial timing pulleys and belts designed for heavy duty and high durability configurations.
In the world of mechanical power transmission, a 5mm pitch timing pulley (representing the distance from tooth center to tooth center) acts as a crucial mechanical interface. It connects rotating drive axles to linear actuators and belts, converting rotational motion to linear motion with extreme efficiency.
Whether categorized as HTD 5M (High Torque Drive) curvilinear profiles or traditional trapezoidal T5/AT5 profiles, 5mm timing pulleys operate under complex frictional and tensile stress. Traditional trapezoidal configurations (T5) are ideal for lightweight, high-speed, and bidirectional synchronization. However, they are prone to stress concentration at the tooth root. On the contrary, curvilinear geometries like HTD 5M allow for a deeper meshing tooth profile. This distributes shear stresses evenly along the pitch line and minimizes the probability of tooth jump (ratcheting) under heavy start-stop loads.
At Qingdao Huishi, our production processes combine multi-axis CNC hobbing, custom broaching, and advanced anodic treatments. This ensures our 5mm timing pulleys perform reliably in environments requiring zero-backlash operation and corrosive chemical exposure.
| Profile Type | Tooth Geometry | Common Applications | Backlash Rating | Torque Capacity |
|---|---|---|---|---|
| HTD 5M | Curvilinear (Round) | Heavy automation, packaging machinery | Moderate to Low | High (Shear-resistant) |
| T5 | Trapezoidal (DIN 7721) | Textile machines, standard conveyers | Standard | Medium |
| AT5 | Reinforced Trapezoidal | Linear motion, high positioning accuracy | Very Low | High (Reinforced root) |
| GT2 - 5mm | Deep Modified Curvilinear | Precision 3D printers, medical pumps | Near Zero | Extremely High |
Qingdao Huishi Transmission Equipment Co., Ltd. has been continuously developing and growing since its establishment in 2010.
We own a modern factory covering an area of more than 6,000 square meters and have gathered more than 50 professional talents. As a high-tech enterprise deeply engaged in the field of industrial belt transmission and conveying, we always adhere to the integrated development model of research and development, production, and sales, and are committed to providing high-quality products and services to customers around the world.
Our engineering division designs solutions that directly replace standard, high-wear drive elements with robust, custom-machined 5mm timing wheels and performance-matched synchronous belts. This ensures low system maintenance and reduced operational downtime.
The company is equipped with more than 20 advanced production equipment for transmission belts and conveyor belts, as well as more than 40 precision mechanical processing equipment, thus establishing a powerful manufacturing system. With this solid foundation, we can accurately grasp customers' needs and provide professional and efficient customized solutions to meet the diverse requirements of different industries and scenarios.
The transition toward localized micro-fulfillment hubs and highly automated logistics structures is increasing the global demand for wear-resistant 5mm transmission hubs. These units must withstand non-stop operational loads in extreme environmental temperatures.
The manufacturing sector is shifting away from raw, untreated steel. Modern designs favor aerospace-grade AL6061-T6 aluminum combined with hard-anodized or ceramic coats. This reduces inertia, speeds up cycling times, and increases hardness.
Zero-backlash systems require strict machining tolerance checks. Integrating customized flute designs and optimized tooth configurations reduces play. This prevents hysteresis errors during rapid reversing movements.
In terms of brands and products, the company not only has its own high-end brand BESTLITE, but also has reached cooperation with several world-renowned brands such as Megadyne from Italy and Continental from Germany, acting as an agent to sell their high-quality products and enriching the product matrix. Currently, the company has obtained more than 30 design patents, and its products have fully passed the ISO9001 quality management system certification.
5mm pitch drive assemblies are used across many manufacturing sectors. By optimizing tooth profiles and integrating customized bore configurations (such as D-bores, splines, or integrated keyways), we design drive systems tailored for specific machine interfaces.
In medical testing equipment, precision liquid handling pipettes and slide trays require silent, dust-free operations. Our AT5 and HTD 5M timing solutions, paired with clean-room polyurethane belts, eliminate particle shedding and prevent fluid contamination.
For clean packaging applications, we supply timing wheels with sanitary, non-oxidizing finishes, such as electropolished stainless steel 316 or anodized aluminum. These components resist routine chemical washes, maintaining reliable belt tracking in damp environments.
Selecting the right shaft attachment mechanism prevents slippage under torque. Pulleys can be engineered with set screws (at 90-degree offsets), clamping collars, or customized keyways (following DIN 6885 standards). This ensures a strong mechanical connection to the motor shaft.
HTD 5M features a curvilinear tooth design that distributes load stress more evenly, making it suitable for high-torque applications. T5 is a trapezoidal profile defined by DIN 7721, ideal for high-speed, low-torque synchronization. They are not cross-compatible because their tooth angles differ.
Hard-anodizing (MIL-A-8625 Type III) creates a thick oxide layer on aluminum surfaces. This increases surface hardness to over 60 HRC, reduces tooth wear from fiberglass-reinforced belts, and provides high corrosion resistance.
Backlash is the clearance or play between the belt tooth and the pulley groove during direction reversals. It can be minimized by using zero-backlash profiles, choosing AT5 configurations with reinforced roots, or adjusting center-to-center installation tension.
Yes. Using advanced CNC broaching and milling, we customize bores to include D-bores, hex shapes, internal splines, and keyways. This ensures simple mounting onto stepping motors and servo axles.
For food-processing applications, we recommend stainless steel (304 or 316) or food-safe polymers like polyoxymethylene (POM/Delrin). These materials resist high humidity and corrosive washdowns.
Engineered to match our high-precision pulleys for smooth mechanical transmission.
