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conveying system on the varnishing
line for a manufacturer of high-end
kitchen cabinets were leaking. Oil was
dripping on the cabinet parts — ruining
the finish. Why were half of the
gearboxes leaking?
Referencing a June 2014 Article, “High Gear Ratio
Epicyclic Drives Analysis,” 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.
Standard carburizing steel 18CrNiMo7-6 is often used when high hardenability is required, but due to its highly fluctuating price, there has always been an incentive to develop Ni-free steel grades. The 23MnCrMo5-5-2 — or Jomasco 23mod — has been developed for
this purpose. But to ensure smooth substitution within existing production lines, a number of points must be addressed: first, checking the response to carburizing treatments;
and second, having similar mechanical properties with identical tooth root bending performance on gears. The latter is the purpose of this paper.
Just as we now consider rotary dial phones archaic, so are many installed synchronous belt drives. That they continue to operate is testimony to their durability. But that should not prevent you from taking advantage
of newer synchronous belt drive technology that can improve both equipment design and field installations.
Gregory (Keith) Boutwell, CBS and executive account manager at B&D Technologies (a division of B&D Industrial), explains how he used his bearings expertise to save a customer thousands of dollars through correct bearing installation.
Without the sun, there would be no
Earth and no life. However, our knowledge about our home star is still very limited. This is about to change. In 2018, the European Space Agency (ESA) will send its Solar Orbiter into space, equipped with a thick heat
shield.
Power Transmission Engineering is collaborating with the Bearing
Specialists Association (BSA) on a special section within the magazine.
Bearing Briefs will present updated reports on bearing topics for each issue in 2016.
Complimentary access to all BSA Bearing and Industry Briefs is available on the BSA
website at www.bsahome.org/tools.
In this century’s complex, ever-
changing world of manufacturing,
such capabilities as hardware and software expertise, effective location and distribution, business savvy and
yes, even luck, are some of the
cardinal requirements for running
a successful business.