Narrow V-Belt Pulley

HAWEN Narrow V-Belt Pulley is a mechanical transmission component with a single V-groove, mainly used to cooperate with V-belts for power transmission. Featuring a simple design and low cost, it is suitable for a variety of industrial and daily scenarios. Our products are widely used in automation equipment, precision machinery, industrial transmission and other fields. We welcome customers to customize products per drawings or visit our factory.

Product Specification

Product Name

Material

Gross Weight (kg)

Unit (EA)

Dimension

Surface Treatment

Environmental Requirements

Processing Requirement

Application Field

Machining Accuracy

Customer Base

Market Share in China

Remarks

Narrow V-Belt Pulley

1215 Free-Cutting Steel

-

EA

Φ59.18×15.87

Zinc Plating

Compliant with international standards such as ROHS and REACH

Mechanical Machining

Air compressors, tumble dryers and other equipment

≤0.015mm

Nidec

5%

Customizable per drawings

Product Application Fields

HAWEN (Trilon) has been deeply engaged in the machinery industry for more than 20 years. Since 2005, our company has carried out in-depth R&D on single-groove V-belt pulleys and various types of automotive belt pulleys. This product is processed and formed from 1215 free-cutting steel. Our products cover a wide range of industries:

1.Equipment such as fans and air compressors: Used for continuous power transmission in factories (e.g., ventilation systems or liquid conveying). Its structure can adapt to medium-power, medium and low-speed working conditions.

2.Centrifugal fans or screw pumps: Belt pulleys made of gray cast iron can provide stable transmission.

3.Precision manufacturing: Standardized design, strict material selection, sophisticated processing technology and quality control ensure high efficiency, durability and interchangeability in medium and high-power transmission, as elaborated from key dimensions below.

4.Automation and general machinery: Commonly used in fans, air compressors and other equipment; in centrifugal fans or screw pumps, gray cast iron belt pulleys can deliver stable transmission force.

5.High transmission precision: Power is transmitted by friction between the belt and the pulley. Due to slight possible slip of the V-belt in the pulley groove, the transmission ratio is not absolutely constant, but it can usually meet the needs of general industrial applications.

6.High efficiency and easy maintenance: The transmission efficiency can reach more than 95%. Features: The design of the V-belt enables it to fit closely to the pulley, reducing energy loss. Load capacity: The V-belt pulley can bear a certain load. Stability: V-belt pulley transmission has good stability, which can reduce vibration and impact during transmission and ensure the stable operation of mechanical equipment. Adaptability: V-belt transmission is suitable for various working conditions and environments, and can adapt to harsh working conditions such as humidity and corrosion through surface treatments (e.g., zinc plating, high-frequency quenching).

Product Application Equipment and Main Customers

The above products are mainly applied to air compressors and water pump motors, with core customers including Nidec, Asco and other well-known enterprises.

Technical Parameters: 1215 Free-Cutting Steel Single-Groove V-belt Pulley

Main Quality Characteristics	Core Technical Indicators	GB/T 13575.1-2022 Standard	Industry Standard	HAWEN Standard
Inner Bore Stability	Inner Bore Tolerance	-	≤0.026mm	≤0.015mm
Groove Type Compatibility	Groove Angle	-	≤1°	≤0.5°
Transmission Precision & Service Life	Runout	-	≤0.15mm	≤0.05mm
Service Life	Corrosion Resistance (Neutral Salt Spray Test)	48h	72h	96h
Environmental Friendliness	Restriction of Hazardous Substances	-	Compliant with EU Standards	Compliant with EU Standards

Core Advantages

We boast strong technical R&D capabilities and high-precision production equipment. In the process of co-designing future products with customers, HAWEN's technology can always explore the optimal solution and gain customer recognition. We implement 100% online automatic quality control and achieve high-precision precision manufacturing through the following measures:

● Source control: Strictly control the consistency of raw materials from the procurement stage to ensure stable material performance.

● Precision machining: Adopt high-precision equipment for automated processing to guarantee product dimensional accuracy (e.g., inner bore tolerance ≤0.015mm).

● Full-process monitoring: Real-time monitor production parameters through an online detection system to detect and correct deviations in a timely manner.

● Consistent quality assurance: Eliminate manual operation errors to ensure stable performance of each product.

● High qualification rate: The production qualification rate is controlled at 99.99%, and the ex-factory qualification rate reaches 100%.

● Efficiency improvement: Automated processes reduce manual intervention and lower production costs.

We exercise strict control over the environmental friendliness of products from raw material selection to production and processing:

● Eco-friendly raw materials: Use 1215 free-cutting steel to reduce hazardous substances, complying with eco-friendly material standards.

● Surface treatment: Adopt electroplating technology, which coats a layer of zinc on the surface of metal or steel alloy through chemical or electrochemical methods to protect it from environmental corrosion and rust.

● Environmental certification: All products have passed international environmental certifications such as ROHS and REACH to ensure no hazardous substances are contained.

● Production process: Automated production lines reduce energy consumption and waste generation with no manual contact throughout the process. Through fully automatic online testing equipment, every product undergoes a full inspection of dimensions, geometric tolerances and surface defects before ex-factory to ensure batch consistency.

We have long-term supporting cooperation with well-known domestic and foreign motor manufacturers and won extensive recognition. With 20 years of technical accumulation, we continuously optimize material utilization rate and manufacturing processes. Our products have passed ISO9001 and IATF16949 quality system certifications, ensuring full traceability from raw material warehousing to finished product delivery.

● Efficient R&D team: Fast response speed, saving development costs and time; can customize special-shaped designs suitable for customers' applications according to their industrial system requirements.

● Production capacity: We have 120 sets of high-precision CNC equipment, one fully automatic blackening production line, one fully automatic ultrasonic cleaning line and more than 10 sets of automatic testing equipment. The monthly production capacity reaches 300,000 pieces, with the current monthly sales volume of about 150,000-200,000 pieces and a surplus monthly capacity of 30%-50%.

We are guided by the ultimate market demand, focusing on:✅

Efficiency improvement and cost reduction✅

Low noise and high qualification rate✅

Environmental protection

● Greater flexibility in design changes

● High efficiency and speed in the decision-making process

● Short procurement lead time for raw materials and various accessories: Located in Zhejiang Province, the "hometown of manufacturing in China", we have a rich supplier supply chain.

● HAWEN's reliable, high-efficiency and high-quality solutions enable all customers to avoid detours—once they choose us, they will be reluctant to switch to other suppliers.

● Choosing HAWEN means reducing customers' development costs, testing costs, manufacturing costs and after-sales service costs.

Material Selection

1215 steel is an eco-friendly free-cutting steel that contains no hazardous substances such as lead and features excellent machinability, making it suitable for the manufacture of precision mechanical parts.

● Stable physical properties: Its material density is stably maintained at 7.85g/cm³.

● Chemical composition: Carbon (≤0.09%), Manganese (0.75%-1.05%), Phosphorus (0.04%-0.09%) and Sulfur (0.26%-0.35%). The relatively high sulfur content improves machinability while complying with environmental standards.

● Mechanical properties: It has excellent dimensional accuracy; the tensile strength in hot-rolled state is 390-540MPa, which can reach 490-755MPa after cold drawing, with a hardness of 160-190HB, and it can be directly processed without heat treatment.

● Delivery forms: Supplied as hot-rolled round steel, cold-drawn bright bars and ground bars; various cross-sectional shapes can be formed through cold extrusion process, saving material loss and processing time.

● Machinability: Smooth cutting and good chip breaking performance reduce tool wear and improve surface finish; it is especially suitable for mass continuous processing by automated equipment such as automatic lathes and CNC lathes; its wear resistance or corrosion resistance can be enhanced through surface carburizing or nickel plating.

Process Control

● Inner bore tolerance control: Achieving high precision of ±0.015mm places extremely high requirements on processing equipment and process stability. Such a precise tolerance range demands high accuracy of processing equipment (e.g., CNC machine tools), high-quality cutting tools and stable processes (e.g., temperature control, vibration suppression); any tiny deviation may lead to product quality problems.Our company adopts advanced technologies for guarantee: Realized through high-precision measuring instruments (e.g., Coordinate Measuring Machine (CMM), Roundness Tester, Profile Measuring Instrument), strict process control (e.g., Statistical Process Control (SPC)) and a stable processing environment to ensure the consistency of mass production.

● Application value: In precision transmission systems, inner bore tolerance directly affects the fitting accuracy between parts and shafts, which is related to transmission efficiency, noise control and product service life, and is a core technical indicator of high-end manufacturing.

● We exercise strict control over the entire production process to ensure the stability and durability of products during use.

● Material performance matching: Strictly control material hardness and heat treatment processes to improve wear resistance and fatigue strength.

Surface Treatment - Electroplating

As the single-groove V-belt pulley is made of metal materials, harsh service environments will inevitably cause rust or corrosion of spare parts. Our company has a professional and experienced core R&D team. Through years of practical experience and trials, we have developed a special surface treatment formula for this product and adopted fully automatic electroplating equipment with a fully automatic drying system. The thickness of the electroplated layer meets domestic, industrial and international standards, reaching a micron-level finish. There is no manual contact throughout the process, which enhances the corrosion resistance of products, meets the industry standards and reduces the risk of product collision caused by manual contact.

Note: Other surface treatment methods such as blackening and nickel plating are also available and can be customized according to customer requirements.

Environmental Requirements

All products meet environmental requirements in terms of materials and surface treatment, and are supported by certification reports for ROHS and REACH.

R&D & Customization Capabilities

Our professional R&D technical team has 20 years of in-depth industry experience. We can meet customer needs and solve their pain points according to their specific requirements and application fields, and customize special-shaped belt pulleys. We warmly welcome customers to provide drawings for customization, including customized products with designated raw materials and surface treatments, and also welcome overseas customers to visit our factory.

Synergy from the New Organizational Structure

The new organizational structure enables HAWEN to meet customer expectations on the basis of effective cooperation.

Domestic Customers & Market Share

We have long-term strategic cooperation with domestic customers such as Sanjiang Electric, LG Tianjin and Nidec, with a cooperative relationship of more than ten years. Up to now, our company has achieved a 20% market share of single-groove V-belt pulleys in China.