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Bellows couplings
are also excellent for high precision positioning
applications. Bellows couplings allow for more misalignment than jaw
couplings but are generally more expensive.
Both curved jaw and bellows coupling offer excellent positioning accuracy,
high speed performance, and vibration damping when installed and
operated within the manufacturer’s specifications and guidelines.
Coupling Information on the Web
Ruland’s website has a good collection of technical information on
coupling types and coupling selection for servo systems. Click
access to technical articles, videos, and CAD drawings. Or go to
http://www.ruland.com/a_articles.asp.
I
NSTALLING
P
ULLEYS AND PINIONS
P
ULLEY AND
P
INION
M
OUNTING
•
Always follow the manufacturers mounting guidelines.
•
Mount pulleys and pinions as close to the motor face as possible
while still following the manufacturer’s installation guidelines.
•
Never drill through, “pin”, or deform the motor shaft when
mounting a pulley or pinion.
Application Tip:
To prevent loosening/slip, some users bond their
pulleys and pinions to the motor shaft with a high strength adhesive such
as Loctite #638. While this is very effective in preventing pulley slip, it can
be difficult to undo once the adhesive has cured.
