KSC-STIST

SPUR GEAR

HELICAL GEAR

BEVEL GEAR

WORM GEAR

KSC-STIST

KSC-STIST

SPUR GEAR

HELICAL GEAR

WORM GEAR

BEVEL GEAR

KSC-STIST

SPUR GEAR HELICAL GEAR

WORM GEARBEVEL GEAR

KSC-STIST

KSC-STIST

KSC-STIST

• Circular Pitch, Pc = 𝜋𝑑

𝑇d: Pitch circle diameter T: Number of Teeth

• Diametral Pitch, P = 𝑇

𝑑

• Module, m = 𝑑

𝑇

• Full depth = Addendum + Dedendum

KSC-STIST

Velocity Ratio or Gear Ratio, G = 𝑁2

𝑁1

= 𝑑1

𝑑2

= 𝑇1

𝑇2

KSC-STIST

Driven

KSC-STIST

Simple Gear Train

Compound Gear Train

Reverted Gear Train

Epicyclic Gear Train

KSC-STIST

KSC-STIST

𝑺𝒑𝒆𝒆𝒅 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒏

𝑺𝒑𝒆𝒆𝒅 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒓=

𝑫𝒊𝒂 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒓

𝑫𝒊𝒂 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒏

KSC-STIST

KSC-STIST

𝑺𝒑𝒆𝒆𝒅 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒏 𝒈𝒆𝒂𝒓

𝑺𝒑𝒆𝒆𝒅 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒓 𝒈𝒆𝒂𝒓=

𝑷𝒓𝒐𝒅𝒖𝒄𝒕 𝒐𝒇 𝒅𝒊𝒂𝒎𝒆𝒕𝒆𝒓 𝒐𝒇 𝒅𝒓𝒊𝒗𝒆𝒓 𝒈𝒆𝒂𝒓𝒔

𝑷𝒓𝒐𝒅𝒖𝒄𝒕 𝒐𝒇 𝒅𝒊𝒂𝒎𝒆𝒕𝒆𝒓 𝒐𝒇 𝒅𝒓𝒊𝒗𝒆𝒏 𝒈𝒆𝒂𝒓𝒔

KSC-STIST

𝑺𝒑𝒆𝒆𝒅 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒏 𝒈𝒆𝒂𝒓

𝑺𝒑𝒆𝒆𝒅 𝒐𝒇 𝑫𝒓𝒊𝒗𝒆𝒓 𝒈𝒆𝒂𝒓=

𝑷𝒓𝒐𝒅𝒖𝒄𝒕 𝒐𝒇 𝒅𝒊𝒂𝒎𝒆𝒕𝒆𝒓 𝒐𝒇 𝒅𝒓𝒊𝒗𝒆𝒓 𝒈𝒆𝒂𝒓𝒔

𝑷𝒓𝒐𝒅𝒖𝒄𝒕 𝒐𝒇 𝒅𝒊𝒂𝒎𝒆𝒕𝒆𝒓 𝒐𝒇 𝒅𝒓𝒊𝒗𝒆𝒏 𝒈𝒆𝒂𝒓𝒔

Driver GearDriven Gear

KSC-STIST

KSC-STIST