Got a Shaft? Get a Grip!

Got a Shaft? Get a Grip!

Image courtesy of DodgeWhen the Dodge (now Baldor) Grip-Tight Adapter Mounted Ball Bearing was introduced in the fall of 2002, the team responsible for designing and marketing the bearing knew they had a product that was like no other in the industry. Theirs was a uniquely engineered product with the potential to not only save customers money in inventory and maintenance costs, but also to provide them with longer lasting, superior performance as well.

The team knew the Grip-Tight would be successful and well-received, but they had no idea of how much excitement this revolutionary new product would create.

Their surprise was understandable. After all, isn’t a ball bearing, well, just a ball bearing? They were dealing with a product line that hasn’t changed much over many years. How could they convince customers that the Grip-Tight bearing had all of these many advantages?

We’re happy to report that it didn’t take customers too long to “get a grip” and decide that they weren’t going to use any other mounted ball bearing in preference to the Dodge Grip-Tight.

Image courtesy of DodgeWhat ever mounted bearing problems you face, there is a good chance that the Grip-Tight can solve them. Sometimes customers aren’t even looking for a fix for the problems they have with mounted bearings, because they believe their mounted bearing problems are simply “a fact of life.”

Well, not anymore. Here is a list of typical mounted bearing problems that the Grip-Tight bearing has solved for countless customers. It can solve them for you, too.

1. Fretting to the Shaft

Problem: Setscrew and eccentric locking collar bearings promote “Fretting Corrosion.” This is damage which occurs between mating surfaces under high contact pressure and minute relative motion or slippage between those mating surfaces. The debris fretting causes is red and is, in fact, red iron oxide. Simply defined, fretting corrosion is the “seizing” action a bearing has to the shaft after it has been on for any period of time. Most customers have great difficulty removing the bearing from the shaft and, in the worst cases, end up having to cut the bearing off with a torch.

Solution: The Grip-Tight bearing attaches to the shaft as a tapered adapter sleeve. This removes nearly all clearance between the shaft and the inner race of the bearing, virtually eliminating any vibration between the shaft and inner race of the bearing.
(caption) Shaft after running 500 hours with Shaft after running 2,500 hours Setscrew Bearing with Grip-Tight Bearing ->

2. Vibration

Problem: Standard ball bearings (including eccentric collar bearings) can vibrate, particularly at higher speeds, which can cause a great deal of shaft damage. This can increase maintenance costs and lower performance, cutting into the bottom line.

Solution: The Grip-Tight bearing’s patented adapter system grips the shaft 360 degrees around, as well as along the full length through the bearing bore. This places the center of the shaft in the dead-center of the bearing, unlike setscrew and eccentric locking bearings. Vibration caused by the bearing is greatly reduced. In fact, the Grip-Tight bearing runs so true, that speed ratings are 50-100% higher than standard setscrew bearings. This alone is amazing!

3. Setscrew Damaging the Shaft

Problem: In many cases, the shaft is not replaced when a bearing is replaced. The types of shaft damage problems we have outlined above are the reasons it is difficult to mount a new bearing on the shaft. Setscrew damage of the shaft is also a potential problem. Setscrews may cause shaft damage that results in the need for a total shaft replacement. Using a Grip-Tight bearing may prevent the damage that simple setscrews have caused, and save a shaft.

Solution: No setscrews, No setscrew damage!

4. Inventory

Problem: Original Equipment from several different manufacturers involves several different shaft sizes and housing configurations. Because some of these shaft sizes are fairly non-standard, they require the customer to keep spare bearings on the shelf for when one fails. This increases the number of bearings a customer must inventory, reducing the times a given SKU may turn. A customer who uses one hundred 1″ pillow block bearings during a year also has to keep 15/16″ pillow block bearings on hand because a critical application requires the size. This 15/16″ may only be needed one time in five years, but it is essential to keep spares on the shelf.

Because time sitting on a shelf is not good for a bearing, these items in stock may prove to be unreliable when finally installed.

Solution: The Grip-Tight tapered adapter sleeves are removable. Therefore, any given bearing within a given ring size can change bore sizes by simply substituting a different size bore sleeve. In the example above, the typical 1″ normal duty pillow block is in a 205 ring size. This means that any bearing in the 205 ring size family will use the same housing, bearing, and outer ring. So, within the 205 ring size family, there are bearings sized for 1″, 15/16″, 7/8″ and 25mm applications. You can stock a single 205 ring size housing and the various size sleeves and greatly increase your inventory power, while greatly decreasing inventory and costs. As you can see from the example of a 206 ring size below, at that size there are (7) different shaft sizes are available.

Fod for Food Grade applications, The Grip-Tight bearing is also available in an EZKleen version, which provides superior corrosion resistance performance.


With all of these advantages (Eliminating Fretting Corrosion, Minimizing Vibration, Reduced Shaft Damage, and Inventory Savings) why consider anything else? Let us help you get a grip! Call your local IBT sales representative for more information, or contact IBT.





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