GB/T 6877-1986
Replaced
GB/T 22775-2008
Active
National standards
GB/T 22775-2008 Gears for timekeeping instruments—Contrate gears
GB/T 22775-2008 Gears for timekeeping instruments—Contrate gears
Basic Information
Standard Code:
GB/T 22775-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Clocks and watches
ICS Name:
\nWatch
Publish Date:
2008-12-30
Implement Date:
2009-09-01
Pages:
10 pages
Scope
This standard specifies the terminology, tooth shape, code, and parameters of face gears for timing instruments.
This standard applies to face gears in the winding mechanisms of watches and pocket watches that engage with cylindrical gears, where the face gear is the driving component. It also applies to gear transmissions on vertically intersecting axes in instrumentation, where the face gear has a module of 0.07 mm to 1 mm.
Development Information
Related Standards
GB/T 18828-2002
Replaced
GB/T 18828-2002 Diver's watches
GB/T 6044-2005
Replaced
GB/T 6044-2005 Analogue quartz watches
GB/T 20215-2006
Active
GB/T 20215-2006 Timekeeping instrument—Wristwatch-cases—Fixing dimensions of non-spring-bar types
GB/T 4048-2008
Active
GB/T 4048-2008 Timekeeping instruments—Wristwatches—Dimensions of bracelet-to-case fastening elements
GB/T 6877-2008
Active