Heinrich Höner GmbH & Co. KG

Spur gear / gear

This photo shows a gear, which is also called a spur gear. A gear is used in almost all mechanical drives to transmit forces. The required tooth size, also called module, tooth width (also called tooth flank) and the number of teeth depend on the space in the mechanical drive / gear and the force to be transmitted, which is also called torque. The material of the gear must be selected depending on the load. Steels that can be hardened are usually used. Depending on the hardening process, the steel inside the tooth is still soft and the surface of the teeth is hard (wear-resistant). A particularly popular material for gears to be hardened is 16MnCr5. Depending on the desired accuracy or tolerance (gear quality), the teeth of a gear can be milled and, if necessary, ground. Milling achieves tolerances in the hundredths of a millimeter range. Grinding achieves tolerances in the µ range (thousandths of a millimeter range). Whether a gear has achieved the desired geometry is checked by measuring machines (tooth flanks, tooth pitch, shape and position tolerances, dimensional tolerances). There is also the option of checking the gear for grinding burn. As every mechanical drive is different, we do not have any stock items. We only manufacture to order, in single or large series. We manufacture gears according to your requirements - be it by milling, grinding or shaping, as well as straight toothed or helical toothed in module 0.3 - 18.

TOOTHED RACKS

Toothed Rack In comparison to gears, the toothed rack is not a round but a straight drive element or machine element. Toothed racks are used together with gears in a rack drive to convert a rotary movement into a linear movement. To do this, a gear engages the elevations or teeth of the toothed rack. The axis of rotation of the wheel is orthogonal to the direction of movement of the rod, so that the rotating wheel movement can be converted into a straight-line rod movement - and vice versa. This usually involves a back and forth movement. Toothed rack drives are highly efficient and are often used for large axial forces. As with gears, both straight and helical gearing are possible with toothed racks. Straight gearing has the advantage that it is relatively easy to manufacture and no axial force develops. However, when the engagement changes, there is a sudden loading or unloading and loud noises. With helical gearing, on the other hand, engagement and disengagement are gradual and quiet. In contrast, the inclination of the tooth width results in axial forces and various radial loads on the bearing. We manufacture both transport toothed racks and measuring toothed racks with straight teeth and helical teeth up to module 18 according to DIN, as well as modified pitches according to customer requirements - be it 2, 5 or 10 mm. We can manufacture transport toothed racks in any length with helix angles from 0 to 30 degrees. In contrast, we offer measuring racks with a maximum length of 2,000 mm and a pitch accuracy of +/- 0.05 mm per 500 mm length.

WORM SHAFTS / WORM WHEELS

High-quality worm gears and worm shafts Worm gears and worm shafts consist of a "worm" with a screw shape that rotates into a meshing worm gear. In the field of drive technology, the worm shaft in a worm gear is the component that transmits the torque. The worm shaft drives the worm gears by screwing into the worm gear. The number of teeth on the worm gear is also called the number of gears. The worm gear can be used to transmit high forces, as several teeth are always in engagement at the same time. While the worm shaft is usually made of round steel, the worm gear is made of bronze, for example, due to its self-lubricating effect. We manufacture worm shafts by precise milling, whirling and grinding and offer them in modules from 1 to 14 with a diameter of up to 320 mm. A pitch of 0.25 to 315 mm is possible. The pitch angle can be a maximum of 40 degrees. We present our worm gears in the same modules, but with a diameter of 15 to 630 mm and a center distance of up to 450 mm.

Bevel Gears

Bevel gears are a type of gear like spur gears and worm gears. A bevel gear is a truncated cone with a toothed outer surface. While the axes of the frequently used spur gear are aligned parallel to each other, in a bevel gear the drive shaft and output shaft intersect at an angle to each other - often the axis angle is 90°. The tooth flanks touch linearly. A bevel gear consists of two components: the bevel pinion and the larger ring gear. The drive is usually via the bevel pinion, with both directions of rotation being possible. Bevel gears are used to transmit torque and rotary movements, for example in machine tool construction, automation and rolling mills. MANUFACTURING OF BEVEL GEARS Different materials can be used to manufacture a bevel gear, which depend on various factors and operating conditions, such as the peripheral speed, the size and weight of the drive and the shock resistance. Cast iron, for example, offers good load-bearing properties and easy machining options, making it suitable for large gears with a complicated shape. Cast steel, on the other hand, can withstand high loads and is used for the difficult production of bevel gears. Traditionally, the wheels are manufactured in machining using bevel gear planing or bevel gear milling machines. Milling is still used successfully in series production today, although 5-axis milling using bevel gear milling machines is not profitable for small tooth gaps due to the long production time. One of the newer production methods is 5-axis milling on 5-axis simultaneous machining centers, which is often used for large bevel gears and small quantities.

Spline Shafts an Profile Shafts

SPLINED SHAFTS AND OTHER SHAFT FORMS In mechanics, various shafts are known, such as the profile shaft. The spline shaft is a shaft that creates a positive connection to the hub. This is made using straight or parallel drivers. In the case of splined shafts, these drivers consist of involute flanks. The so-called involute toothing plays a major role in mechanical engineering. Spline shafts can transmit large and changing torques to the gearboxes of machine tools, for example. They are used as power take-off shafts in agricultural vehicles. Electric and hydraulic motors also cannot do without shafts, which enable the gearbox to function smoothly. Spline shaft profiles are produced by milling, grinding, cold drawing or shaping. Milling is done using a hob or form milling cutter. There are also various manufacturing processes for the spline hubs that belong to every spline shaft, such as wire erosion. Spline shafts are usually manufactured using special machines. A disc-shaped form milling cutter is used when milling spline shafts. This must be specifically tailored to the dimensions of the shaft. This means that not only standardized models but also individual designs can be created. We produce in accordance with the DIN/ISO standards listed below: DIN 5463 / ISO 14 DIN 5472 DIN 5480 DIN 5481 DIN 5482 DIN 9611 / ISO 500 Largest tooth length - milled up to 3000 mm - ground up to 750 mm

Chain Wheels

CHAIN ​​WHEELS Chain wheels are available for roller chains and conveyor chains and are standardized accordingly. Their job is to transmit rotational forces in chain drives with a fixed or changeable gear ratio via a chain, i.e. a roller or conveyor chain. The toothing of chain wheels is standardized so that it fits exactly on the respective chain. Chain wheels are often manufactured using the so-called rolling process. If larger pitches are involved, milling or the impact process can also be used. Sizes 04B to 32B are common. In addition to standardized standard designs, chain wheels can also be manufactured for special designs. Individual chain wheels for roller and conveyor chains are often made from stainless steel. In addition, there are special materials and hardened or surface-finished toothing. We manufacture chain wheels with a diameter of 6 to 50.8 mm and 15 to 1250 mm.

TRAPEZOID THREADS

A trapezoidal thread has the shape of an isosceles trapezoid and has a flank angle of 30 degrees according to the ISO standard. The threads are often thicker than those of triangular threads. The task of a trapezoidal thread is to transmit movements and forces. A trapezoidal thread is also intended to convert rotary movements into linear movements. It is therefore often used in straight-line drives. Since trapezoidal thread spindles are mainly in motion and have a lot of friction, the self-locking effect created by the pitch is an advantage. To ensure durability, the spindles are usually made of steel and the nuts are made of gunmetal, brass or bronze. The possible uses of the trapezoidal thread spindle are very diverse. It can be used for machine tools, as a lifting spindle in presses, in handling equipment and in assembly lines. The trapezoidal thread spindle is also used for the adjustment movement in lifting systems and forklifts. We manufacture trapezoidal threads or trapezoidal thread spindles with a diameter of 30 mm to 100 mm. The largest thread length is a maximum of 2600 mm when twisted and 500 mm when ground. A pitch is possible on both the right and left. Customer-specific special designs are also possible.

TOOTHED BELT GEARINGS

Timing belts are increasingly being used in modern industry, especially when large forces need to be transmitted in a precisely controlled, quiet, slip-free and maintenance-free manner. The demands on the gears and their toothed belt gearings are correspondingly high. We have been producing these high-performance drive elements in different qualities and shapes for many years. We can manufacture the following toothed belt gearings: T 5, T 10, AT 10 XL – 1/5″ L – 3/8″ H – 1/2″

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