Screw Gear

Raydafon's screw gears are all processed by CNC milling, and the tooth surface accuracy can reach ISO 7 level, which is especially suitable for staggered axis systems with high requirements for meshing stability and transmission angle. In scenarios such as twisting transmission of textile machinery, spiral feeding of packaging equipment, lead screw drive of medical equipment, and angle positioning mechanism of automation equipment, our products show good wear resistance and meshing stability. Each product completes the complete process of cutting, heat treatment, tooth surface finishing to final inspection in its own factory. Key parameters such as lead error and helix angle accuracy are checked piece by piece by the gear measurement center to ensure that the meshing clearance is controlled at ≤0.04mm.

The three major product advantages of Raydafon screw gear are:

Flexible structure: supports staggered shaft design with angles of 30° to 90°, solving the structural problem that spur gears cannot transmit;

Strong durability: tooth surface carburized and quenched, hardness reaches HRC55-60, continuous service life can exceed 5000 hours;

High transmission efficiency: after optimizing the helix angle, the efficiency reaches 95%, while greatly reducing the system operation noise and improving the stability of the whole machine.

In the field of high-end customization, Raydafon provides a dual-lead structure that can achieve "zero backlash" positioning, which is particularly suitable for semiconductor equipment and aviation instruments. For example, the screw gear we provide for a semiconductor company controls the positioning error of the wafer platform within ±0.01mm by optimizing the tooth shape and processing tolerance, winning high recognition from customers.

Choosing Raydafon's screw gear means choosing a "high-precision, high-adaptability, low-loss" power transmission core component, allowing your equipment to always operate efficiently and reliably in a complex staggered structure. We also provide bevel gear, spur gear and other supporting products to meet the diverse needs of customers. Welcome to contact us to obtain samples, selection manuals or technical information, and our technical engineers will provide matching solutions within 24 hours.

How to Use the Screw Gear

Screw gears are mainly used to transmit power between two non-parallel, staggered shafts, with a common angle of 90°. A notable feature of this type of gear is the inclined tooth surface. The teeth are not in linear contact, but point contact or bevel contact, which makes them quieter and less vibrating during operation, and suitable for medium and low speed mechanical structures with noise requirements.

In actual use, the first step is to confirm that the installation position is consistent with the axis angle. Especially when used in printing equipment, twisting machines or medical delivery systems, angle deviation will cause poor meshing or howling. Secondly, a pair of screw gears with matching modules, helix angles, and numbers of teeth must be selected to ensure normal transmission. The rotation direction of the gears also needs to be used in pairs, generally a left-right combination, and cannot be mixed.

In terms of lubrication, due to the small contact area of the tooth surface and concentrated friction, it is recommended to use grease or oil film coverage, especially in long-term operation or heavy load occasions such as automated transmission lines and test platforms. For equipment with high positioning accuracy requirements (such as semiconductor handling mechanisms), models with fine grinding processes can be selected to reduce meshing clearance and improve repeated positioning capabilities.

In addition, it is not recommended to use screw gears for reversible transmission occasions because they do not have symmetrical meshing capabilities. If forced to run in both directions, it will increase wear and even cause tooth skipping, affecting service life.

Raydafon has many years of processing and supporting experience in the field of screw gears. We can assist in providing tooth design, load calculation and lubrication recommendations based on the customer's assembly structure and working parameters. Choosing a suitable structure is only the first step. Only by using it scientifically can the transmission system run stably for a longer period of time.