What is a straight tooth slewing gear

The straight tooth slewing gear is made of the same material as the slewing bearing, and has undergone quenching and tempering (Q+T) treatment. The modulated hardness is 229-269HB, and the mechanical performance is greatly improved after modulation. The bearing capacity of the gear is also improved accordingly. Similarly, it enhances its wear resistance, toughness, and impact resistance through processes such as heat treatment. And according to the fit tolerance between the shaft hole and the customer's shaft, precision grinding of the gear shaft hole is carried out to ensure the fit size, improve the damage of the reducer shaft and motor shaft, reduce accident rates, and improve equipment stability.

Straight tooth drive, also known as straight tooth rotary drive, is a transmission mechanism that achieves deceleration through a gear structure. The structural components of straight tooth drive include rotary bearings, gears, drive housings, adapter flanges, support bearings, seals, and other components.

Features of straight tooth slewing gear

Straight tooth drive is a specialized device that converts higher speeds into lower speeds. Due to the meshing between the teeth of the input spur gear shaft and the large gear on the output shaft, and the number of teeth on the input gear shaft being less than the number of teeth on the output shaft, the ratio of teeth to speed is inversely proportional. When the high-speed operation of a power source (such as an electric motor) or other transmission mechanism is transmitted to the output shaft through the input gear shaft, the output shaft obtains a low-speed motion lower than the input shaft, thereby achieving the goal of deceleration.

Straight tooth drive support bearing is a universal bearing that supports gear rotation. It can be selected reasonably based on parameters such as load and speed of the bearing. Common types include angular contact ball bearings, tapered roller bearings, cylindrical roller bearings, deep groove ball bearings, etc.

The shell of the straight tooth drive is cast from ductile iron QT450-10 according to the casting drawing of the shell, and the carbon of QT450-10 is in the form of spherical graphite. After proper treatment, the toughness, plasticity, and comprehensive performance of the shell are improved.

Tensile strength σ B (MPa): ≥ 450

Yield strength σ 0.2 (MPa): ≥ 310

The mechanical properties are close to steel, far higher than gray cast iron

Elongation rate δ (%): ≥ 10

Hardness: 160~210HB

When the straight tooth slewing gear mechanism engages and transmits, there is a relatively large tangential sliding speed along its tooth length direction, which will result in significant wear; On the other hand, the tooth profiles of the two wheels are in point contact, and their contact stress values will be large, leading to premature compression of the q surface and exacerbating gear tooth wear. Compared with parallel axis helical gears, the service life and mechanical efficiency of staggered axis helical gear mechanisms are much lower.

The transmission characteristics of straight tooth slewing gear mechanism are compact structure and strong load-bearing capacity. Transmission is used in places where speed change is required, or in other words, to transmit motion and power as needed.

Applications of straight tooth slewing gear

Straight tooth drive gears are widely used in robot bases, machine tool turntables, automatic welding equipment, automatic painting equipment, flexible bending machines, wood grabbing machinery, cranes and other fields.

In heavy industries such as mining, construction, and ports, spur gears are widely used in transmission mechanisms with heavy loads, slow speeds, high torque, and extreme conditions, such as off-road vehicles, large cranes, and steel manufacturing equipment.

In the automotive industry, spur gears are mainly used in manual transmissions and rear axle transmission devices. It can enable vehicles to utilize power more effectively, improve driving efficiency, and have a longer service life.

Straight gears are widely used in various mechanical equipment, such as production equipment in industries such as textiles, food processing, papermaking, and pharmaceuticals. It not only provides efficient transmission capacity, but also reduces machine failures and maintenance costs.

 Straight tooth slewing gear Supplier

LTZC Bearing is a professional slewing bearing manufacture with following main Products. Slewing Bearing, Large Size Non-standard Precision Bearing, Ladle Turret Slewing Bearing Shield machine bearing series, Rolling Mill Bearing.

The main products of LTZC BEARING are slewing bearing, non-standard precision bearing, rolling mill bearing, unit assembly related to bearing, Oversize Precision Rail. The product processing range is outer diameter: 200 mm - middle 10000 mm.

LZTC straight tooth slewing gear, providing a series of services such as research and development, design, production, and sales of straight tooth slewing gear products.

If you are looking for straight tooth slewing gear supplier, please contact us for the latest quotation.