Carbon Drive Red

Bike style is getting a jolt of color with the launch of Carbon Drive Red, a series of limited edition red belts that accentuate the bike industry trend of color-matching components and frame highlights.  Gates partnered with top lifestyle brands Schindelhauer, Budnitz, and Flying Machine to commision some red hot bikes for this limited edition release of Carbon Drive Red, and with Spot Brand, which has launched it's Acme Open.  You can find more information on Carbon Drive Red here: http://www.gatescarbondrive.com/products/red-belt 

Gates 2014 Holiday Hours

Gates Corporation offices will be closed 12/24, 12/25, 12/31, and 1/1. As a reminder, normal M-F hours are 7-4 MST.

From the entire Product Application team, Happy Holidays!

PAE Videos

Have you ever wondered how to use the Sonic Tension Meter, or how to install a Poly Chain drive?  Well guess what, we have videos that show you what you need to know on these subjects and many more.  And the best part is that you can access them from your computer, your phone, or anywhere you can get on YouTube.  Check them out here: https://www.youtube.com/user/GatesPT

Gates Belts and Belt Conductivity Standards

We often receive questions as to whether our belts are conductive or not, or how they comply with industry standards.  The following table includes a listing of Gates belts and their certification status for belt conductivity:

1 Not tested ARPM IP-3-3

2  Static conductive made-to-order belts are available

3  Not tested to ISO 1813

4  Includes only full banded 9899 prefix construction

Feel free to contact Gates Product Application Engineering at ptpasupport@gates.com or 303-744-5800 with questions.

Defining Belt Drive Efficiency

Belt energy losses are typically considered in terms of shaft speed and torque:

Efficiency (%) = [(Output Torque X Output RPM) / (Input Torque X Input RPM)] X 100

Torque losses occur due to friction and bending stresses. Speed losses result from belt slippage and creep. Note that slip is only a factor for V-belt drives, as it does not occur in synchronous belt drive systems.

An effective way to remember this hose selection criterion is to remember the word STAMPED. S T A M P E D S = Size T = Temperature A = Application M = Material to be Conveyed P = Pressure E = Ends or couplings D = Delivery (volume) T Temperature When selecting a replacement assembly, two areas of temperature must be considered. These are fluid temperature and ambient temperature. The hose selected must be capable of withstanding the minimum and maximum temperature of the system. Care must be taken when routing hose near hot manifolds, and in extreme cases, a heat shield may be advisable. Actual service life at temperatures approaching the recommended limit will depend on the particular application and the fluid being used in the hose. Intermittent (up to 10 percent of operating time) refers to momentary temperature surges. Detrimental effects increase with increased exposure to elevated temperatures.

STAMPED - M (Material)

Some applications require specialized oils or chemicals to be conveyed through the system. Hose selection must ensure compatibility of the hose tube, cover, couplings and O-rings with the fluid used. Additional caution must be exercised in hose selection for gaseous applications where permeation can occur. Permeation, or effusion, is seepage through the hose resulting in loss of fluid. This may occur when hose is used with fluids such as (but not limited to): • Liquid and gas fuels • Refrigerants • Helium • Fuel oil • Natural gas Consider whether there are potential hazardous effects of permeation through the hose, such as explosions, fires, and toxicity. Refer to applicable standards for specific applications such as fuels and refrigerants. If gas permeates through the tube, consider pin-perforated covers to prevent gas build-up under the cover. Also consider the compatibility of the system fluid not only with the tube, but also with the braid, cover, fittings, and other components since permeation may expose the entire hose assembly to the system fluid.

Cover Perforation of Hydraulic Hose

Cover perforation of rubber covered hydraulic hose is required when air or other gases exist in a hydraulic or high pressure hose system. Without perforating, cover blisters or bubbles destroy protective capacity of the rubber cover and result in the deterioration of the reinforcement. Perforation is not required on textile covered hose because the porous textile cover allows gas to escape. If the system has low or medium pressure requirements, C5-type textile-wire-textile hose is an excellent recommendation. If air or other chemically acceptable gases are present in a fluid system and rubber covered hose is not perforated, gas migrates through the tube and reinforcement. It gathers beneath the cover, overcomes adhesion between reinforcement and cover and creates blisters or bubbles. Neither the rubber tube, cover, nor reinforcement suffers chemical ill effects from this action. But, blisters are cavities where moisture can collect and cause rusting or other deterioration of reinforcement. When wire reinforcements are sufficiently weakened by rust, hose fails when pressurized. If blisters are broken, cavity can collect additional dirt and moisture-collecting residue, making the corrosion problem worse. Correctly perforating rubber cover allows gas to escape without creating blisters or destroying protection provided by the cover. Perforation is achieved by pin-pricking small holes in the cover at close intervals along the total length of the hose assembly and around its circumference. Only the cover is perforated, not the tube or reinforcement. Rubber covered hydraulic hose can be ordered factory-perforated or Gates Power Line Perforators (7482-6565 or 7482-6566) are available. Remember, any gas of fluid conveyed in hydraulic hose must be compatible with the hose tube and cover. Always refer to the chemical resistance table if there are questions as to compatibility.