LM76’s new SPEED DEMON EL300 rail/roller bearing wheel system is the latest edition to the SPEED DEMON linear bearing family. It features travel lengths of 400 to 3,000 mm, a wide 90 mm base and 49 mm centerline to centerline of the parallel rails of the base, and 100 mm centerline to centerline spacing of […]
bearings
Ball rail systems: twice the service life and high travel accuracy
The patented entry zone of the new BSHP ball runner blocks from Rexroth improves travel accuracy and work piece quality while greatly increasing load capacities and service life. These runner blocks are available in most sizes, versions, and accuracy classes. BSHP ball runner blocks are 100% interchangeable into existing profiled rail applications using the same […]
Bearing lubricant: Choosing between grease and oil
Lack of bearing lubrication is generally regarded as the number one cause of linear-bearing failure. For recirculating linear bearings such as profiled rail guides and ball screws, lubrication separates the bearings (ball or roller) from the raceways, minimizes friction and wear, dissipates heat, and prevents corrosion. It also promotes smooth running of the seals and […]
How to calculate linear bearing life
When selecting linear guides, have you ever seen a disclaimer in the catalog or on the manufacturer’s website regarding dynamic load capacities? It typically reads something like this: Dynamic load capacities are based on 100,000 m of travel. When comparing to products for which load capacities are based on 50,000 m of travel, multiply the 100,000 m […]
How Seals Extend the Life of Linear Systems
When selecting a linear system – ball screw, linear guide, or actuator – most of the focus is on application data such as load, speed, travel, and duty cycle. But there’s another factor that should be considered, especially for technically demanding applications or harsh environments. That factor is sealing. How are the bearings protected against […]
How to Achieve Long Travel and High Speed with Ball Screws
If you need a linear motion system that can travel at high speed over long lengths, what solutions come to mind first? Belt drives? Rack and pinion systems? Linear motors? If the application requires high thrust force, belt drives won’t suffice, and if high positioning accuracy is important, rack and pinion systems are out. Linear […]
Renishaw Helps Achieve High Accuracy Grinding for Giant Wind Turbine Bearings
KMT Lidköping (www.kmtgroup.com/lidkoping/) has unveiled its new hard-turning VTG4000 (Vertical Turning Grinding) machine that uses a combination of Renishaw SiGNUM optical angle and linear encoders to achieve the required accuracy, and Renishaw magnetic encoders placed on the exposed axes of the cutting heads. “Our largest machine used to accommodate parts up to 600 mm diameter, […]
Amish Communities Adopt Plastic Bearings
EAST PROVIDENCE, R.I. – An Ohio-based manufacturer of horse-drawn farming equipment predominately employed by Amish communities uses iglide® plastic plain bearings from igus® on a ‘crumbler’ mechanism; used to crush clods of dirt during the tilling process. The bearings replaced a system of metal shafts and collars that required messy lubricants and frequent maintenance. iglide […]
Spherical bearings eliminate installation nightmare and maintenance hassles
EAST PROVIDENCE, R.I. – Igubal® spherical bearings from igus® Inc. put an end to installation nightmares and maintenance hassles for customers from a wide array of industries such as packaging, sports equipment, food processing and automotive. Frequently, other alternatives such as roller bearings fail prematurely and may require readjustment, reaming or retrofitting to compensate for […]
iglide T500 bearings resist harsh chemicals and caustic substances
EAST PROVIDENCE, R.I. – Iglide® T500 plain bearings from igus® Inc., a world-leading developer of plastic bearing technology, are designed to resist harsh chemicals and caustic substances. Iglide T500 is a member of the iglide plastic bearing family from igus, a line of all-polymer bearings requiring no external lubrication or maintenance. Iglide T500 attains exceptional […]
