In linear motion, the ball bearing is not the only important element that needs to be taken under consideration, the design of the linear shaft is also important. That is because a linear ball bearing uses the shaft as its inner race.
Other types of design include a rotary anti-friction bearing.
You probably already know that linear shafts are long, rod-shaped devices that come in handy for different linear motion purposes. Linear motion is required in the medical industry, aerospace, packaging industry, and many more industrial sectors.
Almost all kitchen appliances are operating thanks to linear motion, not to mention how linear motion is used in furniture production.
The design of the shaft plays a very important role too. Different types of linear motion shafts will perform differently to do a perfect job.
Linear and rotary shafts or posts – the difference and applications
Even though they look similar, linear shafts, rotary shafts, and posts are all used for different types of motion. They are all robust, and just after the first glance, you realize that they are meant to bear loads.
They are completely different types of shafts that are best used in different situations. It is very important to know some of the specs and details so the linear motion application you require wouldn’t suffer.
The linear shafts: https://www.tuli-shop.com/linear-motion-products/linear-bushing-and-shafts support and guide a certain load in a straight line. Linear bushings would be the best choice to pair them up with. The bushings ride along the length of the shaft. For heavier loads, linear shafts with continuous support are the best choice. Smaller loads, on the other hand, can be supported at both ends. To reduce weight in the loading and transmitting assembly, linear shafts can also be made hollow.
Rotary shafts are designed to rotate about a longitudinal axis. They are a great choice for withstanding torsional forces. Usually paired with rotary bearings, rotary shafts can be compiled into pulling systems or can act alone once it is paired with a motor.
Drive shafts are high-precision components that bring a tighter tolerance standard. They are mostly used in applications that require high speed.
Linear actuators – best choice preferences
Linear actuators (https://www.tuli-shop.com/linear-motion-products/linear-actuators) actuate linear motion, meaning they make it possible. They are used to move a variety of loads, as they allow movement in both directions, forward and backward.
What makes a linear actuator the best choice for your applications and needs?
It comes down to 3 factors, each important as the previous one.
Maximum load – most linear actuators have allow a maximum load of 225 lbs. Others can withstand over 600 lbs, but those are used in heavy machinery industry and most likely will never be needed in simpler applications.
Stroke length – Another detail that helps decide on the proper linear actuator is the distance it will allow you to cross with the load. You will find different strokes possible for different types of linear actuators. Some allow the traveling speed up to 700 mm (7 cm), but most common ones are with maximum distance of 300mm (3 cm) or 500 mm (5 cm).
Once you have upper two specifications to your linking, the travel speed should be taken into matter too. A linear actuator is not supposed to move from its close position to an open one. Especially when we consider linear actuators with high stroke length. The standard speed for transmitting loads is 10 mm/s which makes it much safer to use.
For all types of linear actuators and other solutions for great results in linear motion, you can visit the lead manufacturer in the field, Tuli.hr.
