| A gearbox is the system of gears and/or the | | | | the larger wheel by the number of teeth of the |
| hydraulic system that transmit mechanical power | | | | smaller wheel. It is also known a right angle bevel |
| from a prime mover - such as an engine or | | | | gearbox. In bevel gearboxes, 2 axles cross at a |
| electric motor - to a typically rotary output device | | | | point and engage by means of a pair of conical |
| at a lower angular momentum but a higher | | | | gears. These gears enable a change in the axes |
| motive torque. Gearboxes have found use in a | | | | of rotation of the respective shafts, commonly at |
| wide variety of different - often stationary - | | | | 90 degrees. There are four types of bevel gear |
| applications. Transmissions are also used in | | | | boxes: |
| agricultural, industrial, construction, mining and | | | | - Straight bevel gearboxes - They have a conical |
| vehicle equipment. In addition to ordinary | | | | pitch surface and straight teeth tapering towards |
| transmission equipped with gears, such equipment | | | | an apex. |
| makes extensive use of the hydrostatic drive and | | | | - Zero bevel gear boxes - This is similar to a |
| electrical adjustable - speed drives. | | | | bevel gear except the teeth are curved. In |
| A Gearbox is also called gear head, gear reducers | | | | essence, zero bevel gear boxes are spiral bevel |
| or speed reducers. They are available in broad | | | | gear boxes with a spiral angle of zero. |
| range of sizes, capacities and speed ratios. | | | | - Spiral bevel gear boxes - The teeth are curved |
| Gearing arrangement for gearbox includes spur, | | | | teeth at an angle allowing contact and motion to |
| helical, planetary, bevel, worm, and cycloidal. | | | | be gradual and smooth. |
| 90 degree gear box | | | | - Hypoid bevel gearboxes - These are similar to |
| A 90 degree gearbox, also known as a right angle | | | | spiral bevel except that the pitch surfaces are |
| gearbox, transmits torque at 90 degrees to the | | | | hyperboloids rather than cones. Pinion can be |
| input shaft. It features a variety of mounting | | | | offset above or below gear center, thus allowing |
| holes which enable it to be mounted easily in | | | | larger pinion diameter, and longer life and |
| almost any position. | | | | smoother mesh. |
| Right angle gearboxes contain input shafts that | | | | Wear and tear is common in gear boxes. This |
| are positioned perpendicular to the output shafts. | | | | mostly occurs as a result of contamination and |
| Right angle gear boxes have up to 98% | | | | degradation of the lubricant. Therefore the oil |
| efficiency levels and are common in printing | | | | used should be free from contamination. |
| presses and glass cutting equipment. | | | | Breathers are often used to allow airflow on the |
| Bevel Gearbox | | | | gear box. |
| A Bevel gear is a gear wheel with tapered teeth | | | | As there are moving parts in gearboxes, they |
| meshed with another so that their shafts are at | | | | have to be well preserved. It is important to take |
| an angle of 90 degrees. They connect intersecting | | | | care of gearboxes. An annual check of all |
| axes. A bevel gear box is yet another right angle | | | | switches and sensors as well as cooler condition |
| gearbox solution with a much higher efficiency. It | | | | should be performed to ensure its long life and |
| has a low ratio. The ratio of a bevel gearbox is | | | | trouble free performance. |
| reached at by dividing the number of the teeth of | | | | |