Articles About grease
(SPONSORED CONTENT)Automatic Lubrication for 7th Axis Robotics
Eliminate uncertainty and avoid downtime with a multi-point automatic lubrication system for the 7th axis. The Flexxpump system is based on standard components that are adapted for easy installation. Download the Andantex insider's guide to see how our customized solutions can correctly lubricate gears and bearings to provide reliable operation. White Papers Courtesy of Andantex USA Inc.
Specialized lubrication pumps with accessories and specialty greases for automatic re-lubrication of racks and pinions, open gearing, linear guideways, ball screws, and chain drives. Andantex USA offers two sizes of the Flexxpump with grease capacities of 1500 cc or 400 cc. White Papers Courtesy of Andantex USA
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Grease lubrication has clear advantages over oil lubrication: Grease does not leak easily; it has sealing properties; and it protects bearing surfaces from corrosion. Its disadvantages are grease-life limitations and a limited cooling ability. Moreover, in some applications there is a risk of grease starvation, which leads to reduced lubricating films. However, if the right grease, sealing system and/or lubrication system are chosen, then grease lubrication offers clear benefits. This article summarizes aspects of grease lubrication mechanisms in rolling bearings.
In this study the mechanical shear degradation of lithium-thickened grease was evaluated using an in-house-developed aging rig and a commercial rheometer. It was found that this grease loses its original consistency during aging and shows a two-phase aging behavior. In the first phase, primarily reorientation and breakage of the thickener network take place, resulting in a progressive drop in the grease's rheological properties. After this, the aging is dominated by the breakage of smaller fiber fragments and the grease degrades at a much slower rate.
For the lubrication of open gear drives used in different industrial applications such as cement and coal mills, rotary furnaces, or where the sealing conditions are difficult, semi-fluid greases are often used in preference to fluid oils. For girth gear applications the greases are used with a splash or spray lubrication system. The selection of such greases influences pitting lifetime and the load-carrying capacity of the gears, as well as wear behavior
Varying installation requirements for worm gears, as, for example, when used in modular gear systems, can necessitate grease lubrication - especially when adequate sealing for oil lubrication would be too complex. Such worm gears are being increasingly used in outside applications such as solar power plants and slew drives. While knowledge about the operating conditions is often appropriate, the basic understanding for load capacity and efficiency under grease lubrication is quite poor. Investigations done at FZG and sponsored by FVA/AiF are shown here to give an impression of the basic factors of load capacity and efficiency. The results of the investigation indicate a satisfying quality of calculations on heat, load capacity and efficiency based on characteristic parameters of the base oil with only slight modifications to the methodology known from DIN 3996 or ISO TR 14521.
End users and OEMs frequently specify "lubed-for-life" mounted bearings, thinking the lubed-for-life bearings will deliver the same life â” without lubrication â” as bearings that currently require periodic lubrication. The truth is it depends on many factors, and only a detailed review of the application and testing will provide a more accurate answer.
Sustainability is becoming one of the most important aspects within the power transmission business. Users demand low-maintenance drive systems with as little disruption as possible, and expect lifetimes of more than 10,000 hours. Approximately 40 percent of long-term gearbox leakages can be traced back to poor interaction between the radial shaft seal (RSS) and the lubricant. Thus, it becomes essential to analyze the tribological system as a whole, which includes the gear oil, seal grease (if required), elastomer material and design, and the shaft.
The following news items offer the latest on lubrication and seal technology in the power transmission market. From bearing greases to high-performance seals, these products will help extend the service life and manufacturing capabilities for a wide range of industrial sectors.
Referencing a June 2014 Article, âœHigh Gear Ratio Epicyclic Drives Analysis,â by Dr. Alex Kapelevich: I have designed a small compound epicyclic gearbox with common planets. Sun = 10 teeth Planet = 14 teeth Ring Gear stationary = 38 teeth Ring gear output = 41 teeth profile shifted onto a 38 tooth pitch diameter. Carriers are simply cages for the planet alignment and location. According to your article, and according to my calculations and the prototype I have built, my inputto- output ratio is a reduction of 65.6:1. I am using a ~ VG1 viscosity grease and Nylatron materials for the gears and carriers.
News Items About grease
1 Dayton DayLube Grease Designed to Maintain Viscosity After 100,000 Strokes (July 9, 2015)
Dayton Lamina recently introduced their DayLube high-performance nano-ceramic grease. The grease is designed to maintain its original vis...
2 Kluber Lubrication Offers Grease for Ball Joints and Constant-Velocity Joints (December 26, 2018)
Klüber Lubrication recently introduced Klübersynth J 87-20002 KR, a high-performance automotive grease for ball joints, and Kl&...
3 Cortec CorrLube CpCl Lithium EP Grease Provides Corrosion Resistance for Electrical Connections (June 13, 2016)
When it comes time to lubricate bearings, fans, chassis or other metal areas where grease is applied, Cortec's CorrLube VpCI Lithium ...
4 Klüber Lubrication Introduces Synthetic Grease for Extreme Climatic Conditions (April 10, 2015)
KlÃâ¹ber Lubrication recently introduced Klübersynth EM 94-102, a fully synthetic lubricating grease incorporating a calcium complex ...
5 Kluber Lubrication to Showcase Lubricating Grease (April 12, 2018)
Kluber Lubrication, a worldwide manufacturer of specialty lubricants, will showcase its lubricating grease for rolling and plain bearin...
6 Kluber Lubrication Introduces Greases for Mining and Quarrying Equipment (July 31, 2018)
KlÃâ¹ber Lubrication offers Klüberplex EM 91-151 & 91-152, lubricating greases for applications in the mining, cement and quarry ...
7 DayLube Nano-Ceramic Grease Extends Maintenance Intervals (June 26, 2015)
DayLube recently released a new high-performance nano-ceramic grease designed to maintain its original viscosity and adhesion after 100,0...
8 Lubrication Engineers Introduce Monocal GP Grease (February 26, 2014)
Lubrication Engineers, Inc. recently introduced Monocal GP Grease (1499), a versatile general purpose lubricant for use in severe conditi...
9 Klüber Introduces Bearing Greases (February 19, 2014)
Klüber Lubrication, a worldwide manufacturer of specialty lubricants, has introduced Isoflex Topas NB 52 and Isoflex Topas NB 152, t...
10 SKF Battery-Driven Grease Gun Offers Unique Lubrication Solutions (July 25, 2016)
The new SKF Battery-Driven Grease Gun (TLGB 20) introduces an ideal portable tool to maximize the efficiency and accuracy of manual lubri...
11 Kluber Lubrication Designs Lubricating Grease for Modern Electric Brake Applications (July 23, 2018)
Kluber Lubrication, a worldwide manufacturer of specialty lubricants, has developed Klübersynth GR 46-52 F, a fully synthetic specia...
12 Kluber Lubrication Introduces Specialty Grease for Wet and Aggressive Environments (November 7, 2017)
KlÃâ¹ber Lubrication, a worldwide manufacturer of specialty lubricants, introduces HYDROKAPILLA NBU 20 HFE US, designed for the lubricatio...