FV Bearing is a leading supplier of precision bearings and bearings related products across a large spectrum of customers – preimarily OEMs and major distributors.
The Industrial gearbox is an efficient and reliable transmission equipment commonly used in various industrial fields. It can change torque and speed while driving. The gearbox adopts a precise gear transmission system, ensuring smooth operation and precise transmission. The gears in the gearbox are matched with high-precision bearings, which are the basic components of high-quality gearboxes.
The textbook says that gearboxes are systems for converting and translating motion. The designer says that industrial gearboxes' bearings support the torque and speeds of the drive end to the required turning moments and speeds of the engine – according to the individual and specific operating processes. And what does the engineer say from experience? Above all, bearings for modern industrial drive systems face the most demanding and versatile requirements. Features, including sufficient availability, long life, economy, and best combination features of weight and performance, are only a few examples out of many.
Just as versatile as their functions
To achieve the desired torque and speed, a certain degree of fatigue strength and life needs to be guaranteed for all components. In addition, sufficient cooling and noise levels need to be achieved for maximum performance. These features have always been fundamental for gear operation. Considering the various areas of application, the number of gear types is increasing, as are the demands for smooth gear operation.
For example, environmental conditions (such as contamination, water, and shock loads) affect bearing performance, as do specific operation modes, such as stop-start mode or stand-by operation. The inherent operating requirements for precision gears, such as those employed in press printing machines, vary from those employed in wind generator plants, which require a high degree of maintenance-free operation.
When selecting a suitable bearing type, the special operating conditions at the respective bearing location are taken into consideration. 1. Full complement cylindrical roller bearing for low speed and high radial loads. 2. Spherical roller bearings for ultra-high loads and components in oblique arrangement. 3. Cylindrical roller bearings for high speed and high loads, functioning as a floating bearing. 4. Four-point bearing, acting as the locating bearing for the high-speed stage, while the cylindrical roller bearing takes the radial load. |
Hypoid bevel gears The larger-sized pinion which is part of this hypoid bevel gear integrating an offset pinion shaft, facilitates lower peripheral force while the turning moment (torque) remains constant. The offset axis provides for higher strength of pinion support in both directions. Low noise generation is a further advantage. However, a disadvantage is increased friction due to additional sliding motion. |
Worm gear A particular advantage is translating motion in a single stage. In most cases the axis of worm and worm gear intersect below 90°, provided there is sufficiently high clearance between the axes. During operation vibration is absorbed to a high degree and noise generation during operation is low. However, the high friction reduces the degree of efficiency. This gear is usually employed in combination with a globoid gear with cylindrical worm made from steel, because these can be subjected to tempering and grinding. |
Planet gearbox Utilizing planetary wheels with internal gears, epicyclic gearboxes have significant advantages over other gearbox types. Volume and weight are reduced. Due to low rolling speed and low sliding speed within the tooth system, noise generation can also be reduced. An increased degree of efficiency can be achieved due to the fact that part of the energy is translated to the coupling performance – these advantages often compensate for increased maintenance. |
Spur gear Parallel axis gears generally fall into two main types – Spur gears and Helical gears. While spur gears have the advantage of ease of manufacture and accuracy, smooth operation and high load capacity are achieved through helical gears (albeit with the need to react the thrust loads). Double helical gears constitute a sub-type with increased load capacity and larger face width. |
Bevel gear There are three types of design depending on tooth traced characteristics. If spur gearing is used, tooth engagement cangenerate noise. Although Helical bevel gears also use straight tooth profiles, they have reduced noise levels, due to improved mesh characteristics. The third type of design employs spiral bevel gears and curved tooth bevel gears. This type of design operates at the lowest noise levels. |
Gearbox is an important equipment in industry. The rotating gear is inseparable from the support of the bearing. High quality bearings can bring efficient power conversion to gearbox.
FV Bearing is a leading supplier of precision bearings and bearings related products across a large spectrum of customers – preimarily OEMs and major distributors.
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