Tags:Ledger Blade Pinion Gear Transmission Products
Like most engineered components and systems today, gearboxes are becoming smaller - especially in automotive applications - and more powerful.
The supporting bearings must therefore offer optimum performance.
The bearings must be compact, reliable, durable, and offer high load ratings.
In addition, gearbox designers will also look for other factors, including low noise levels, reduced friction, as well as how safe and straightforward the mounting of the bearings will be.
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Typical applications for these gearboxes include wind turbines, tidal energy systems, planetary gearboxes for power generation, construction vehicles, racing car transmissions, as well as gearboxes for gas, water and vacuum pump applications.
Typically, the gearbox manufacturer provides a design specification and/or drawings to the bearing supplier.
Around 85 per cent of Schaeffler gearbox bearings are standard catalogue products.
The remainder are custom-designed bearings to suit specific applications.
Here, the customer often requires careful guidance and technical support from the bearing supplier.
At this point, important decisions are made and design factors that determine the suitability of a bearing for a specific application are discussed.
These include the space available for the bearing; the loading the bearing has to withstand; the speed at which the bearing needs to perform; the environment in which the bearing will operate; lubrication requirements; and the required life expectancy of the bearing.
By working closely with an engineer from a specialist bearing supplier, gearbox manufacturers can select the most appropriate bearing for their application.
For some applications, it may be a question of mounting the appropriate bearing in the correct manner in order to ensure optimum performance.
However, if the bearings are only considered much later in the design process, the customer may have already signed-off important parts of the machine design, without giving much thought to the bearing requirements.
As a result, there may not be sufficient space to mount the ideal bearing or lubrication method.
This means the bearing engineer has to select a compromised bearing solution that may not meet all of the customers' requirements.
The ideal scenario is therefore to invite the bearing supplier into your design process early, in order to avoid potential costly design errors, over- or under-engineering the product and to eliminate safety or reliability issues that will need rectifying later on.
Product development times will be reduced considerably if bearing design issues are resolved early.
Furthermore, a standard bearing (which is always more preferable to the customer) is more likely to be recommended for the gearbox if the customer starts the design with a clean sheet of paper.
If the design of the gearbox is already set in stone when the bearing supplier is invited to specify bearings, the chance of a special, custom-designed bearing solution being offered is higher.
The collaborative design process starts with a detailed brief from the customer, which is passed to Schaeffler's in-house engineering team.
These engineers use the latest design software - including kinematics, dynamic, FEA analysis software and its own Bearinx calculation software - to simulate the function of the proposed bearing or system.
This results in a bearing design that achieves the required performance and operating life.
Schaeffler's Bearinx rolling bearing analysis and calculation programme is a software tool that enables engineers to simulate bearing designs for complex gearbox systems, quickly and accurately.
The software enables the rapid modelling of complete geared systems, taking into account important design factors such as elasticity and deformation.
Calculations and design simulation help to improve the understanding of the overall system, so that critical points can be identified and eliminated at an early stage in the design process.
Bearinx models the complete power transmission system in a gearbox, taking into account the type of gears used, loads, speeds and existing collective loads.
Gear shafts that deform elastically under the given loads based on materials used are also taken into account.The news come from http://www.bossgoo.com
