Archive for August, 2014

Benefits of Round Belts

Friday, August 29th, 2014

A round belt is described as a soft rubber device designed for low-torque applications like lineshaft conveyors, and roller conveyors. It somewhat resembles a rubber O-ring, so it’s built to run in a V-groove of 60 degrees for maximum friction and bite.

These belts are narrow and rounded. Typically, they are utilized more like flexible gears than conventional conveyor belts. They are able to maintain rotating parts going steadily with no glitches for several hours. The benefits of round belts in factory use are:

Tension strength

  • These belts have immensely high tension strength. They can flex and stretch at different speeds without damaging or straining the material. They keep their tension so well they don’t need any additional belt tensioners to keep the belt tension.

Durability

  • These belts are known for being durable. Majority of rings are composed of durable materials, like flexible urethane, steel-strengthened plastic, as well as other strong materials that won’t quickly break down even in unideal environments.

Resilience

  • For such thin material, round belts are surprisingly resilient. They can endure a high amount of nicks, abrasions, and cuts. The strong plastic retains its shape and doesn’t wear down under extreme conditions.

Low maintenance

  • A lot of factories utilize this style of belt for their low maintenance. They are easily replaceable should they wear out, and cleaning them is a breeze. If they ever get contaminated, just a simple wash and they’re good to go.

Different grades

  • These flexible thin belts are available in different grades for different purposes. Food safe belts are very safe to use around any exposed food substances. A wide array of belt manufacturers also make belts particularly built for industrial and marine use.

Electronic Warning Systems For Better Operational Safety

Friday, August 22nd, 2014

The electronic warning systems created by Contitech supposedly boosts operational safety and makes it easier for users to save money.

Conti Protect warning systems protect conveyor belt systems from major damage. The systems’ splice elongation measurement is built to monitor big conveyor belts. The magnetic markings help in detecting abnormalities in regards to the splice length. A big part of the operational safety of conveyor systems depends on splice monitoring.

Conti Protect belt rip detection can easily spot longitudinal rips in the conveyor belt using vulcanized conductor loops. With these enhanced conductor loops and a lower electromagnetic susceptibility to faults, the belt warning system keeps incorrect messages at bay.

You can also get online support. The available staff can check and optimize processes through remote maintenance. Conti Inspect systems also give information you can use with regard to the remaining service life of the conveyor belt. This can help users get an estimate investment costs more precisely. This comes in particularly handy in cutting back on costs.

The mobile belt thickness measurement system measures the thickness of the conveyor belt across the entire length of the belt. The Conti Inspect continuous surface inspection system detects any surface damage. The top-of-the-line scan technologies are being utilized to examine the conveyor belt surface and to obtain a comprehensive image of the belt surface and quality.

A cord monitoring system monitors the steel cord of the carcass with a magnetic-inductive procedure so its condition is accurately monitored.

Changing a Lubricant Brand

Friday, August 15th, 2014

You know what they say, change is the only constant thing in this world. But when it comes to changing lube brands, make sure it’s for good reason. It may be because of the price, or you might be looking for performance improvement, the need for consolidating lube inventory, operator issues, and environmental factors, just to name a few, but make sure it’s not for nothing. Ideally, this kind of transition must come with a lube audit.  Throwing caution to the wind has no place in this matter.

The reason why a change of lubricant is such a big deal and getting people worked up about it is that major risks are involved. Minimizing such risks is of the essence and actually vital to the success of the possible change and the subsequent performance of the machinery.

The risks come in many forms. For instance, given that mixing of the new lubricant with the previous one is inevitable, it could bring about chemical breakdown and very low lube performance. A new lubricant could have an untoward reaction to machine surfaces that are painted, caulked or otherwise sealed or coated. Such sensitivity to certain conditions could differ from the previous one you’ve been using. The new lubricant may not go very well with other products and raw material residues that are found in the machine.

Lubricant comparability and compatibility are two different things. Comparable products have the same physical features and could be utilized in your current machinery, but be careful not to blend them with the previous lubricant. A new lubricant compatible with the previous one indicates a similar chemical make-up, and if the previous and new lubricants mix in trace amounts, machine performance may not be tremendously affected.

You could determine lube compatibility through various tests and methods. These include ASTM D7155, wherein you prepare combinations of the two lubricants you are trying but in different amounts. In this particular method’s Tier 1 test, you heat the lubes to let the base oils and additives interact. If discoloration is observed, or any sedimentation or cloudiness for that matter, the lubricants are likely not to be compatible. Should circumstances imply the need for additional testing, a Tier 2 method compares selected performance properties of the mixture and its constituent oil.

NTN Spherical Roller Bearings for Aggregate Equipment

Friday, August 8th, 2014

In the Aggregate Industry, it’s only fitting that bearings can comply with the rigorous requirements. There are potential mishaps every step of the process, from heavy loading and high-misalignment to extreme contamination.

The demands of high loading, severe misalignment, and extreme contamination applications are always present. Some failures are even imminent at some point. That said, the design and production of bearings should meet those specific needs.

Whether your requirements are for the mining industry, construction, agriculture or almost any other industry, there are bearings that could actually deliver.

NTN is one of the most trusted brand names in the market. With years of experience, their extensive and in-depth knowledge of bearing applications have yielded an incessant growth of their product portfolio.

More to products built for the aggregate industry, NTN also has one of the widest arrays of super precision and precision grade ball and roller bearings available, along with other top-of-the-line mounted bearing units and a full line of constant velocity joints for half-shafts and propeller shafts.

 

 

 

Labyrinth Seals and Contaminant Ingression

Friday, August 1st, 2014

Keeping contaminants away from machines comes down to managing potential entry points including where oils are added and where air is exchanged.

It can help to make simple modifications to breathers and sight glasses. However, including shaft seals are just as beneficial. Labyrinth-type seals are typically used in contaminant exclusion. Given that you properly maintain them, they can have a great impact on the reliability of the components they are installed in.

A seal’s purpose has different facets. Not only does it keep contaminants out, it also keeps what’s inside the machine where it belongs – inside. The standard lips seals can keep certain contaminants from entering and prevent leakage, but when operating in high pressure or extreme ambient conditions, they don’t deliver very well.

On the other hand, labyrinth seals can lower contaminant ingression by blocking the clearance where particles get through. Also, they produce areas of turbulent flow to exclude contaminants.

Every contaminant that tries to get in the bearing housing should pass through the seal’s maze of turns and angles for it to get to the bearing. These contaminants are incessantly subject to centrifugal forces due to the rotational motion of the shaft while on their way, though. Thus, only very little make it through the entire length of the seal.

When you’re on the hunt for something that would help you increase reliability and lower bearing failures, take into consideration the seals that are used. In high airborne particulate matter or heavy washdown areas, go for a labyrinth-style seal as it could aid in limiting the ingress of contaminants, as well as add years to the machine’s life while at it.

With the right lubrication and proper contaminant-exclusion devices, a lot of bearings are able to achieve their design life.