Spiral bevels Gear

spiral bevel gears

spiral bevel gears can manufactured gleason types (circular arc non-constant tooth depth), oerlikon , curvex types (circular arc constant tooth depth), klingelnberg cyclo-palloid (epicycloid constant tooth depth) or klingelnberg palloid. spiral bevel gears have same advantages , disadvantages relative straight-cut cousins helical gears spur gears. straight bevel gears used @ speeds below 5 m/s (1000 ft/min), or, small gears, 1000 r.p.m.

note: cylindrical gear tooth profile corresponds involute, bevel gear tooth profile octoid. traditional bevel gear generators (like gleason, klingelnberg, heidenreich & harbeck, wmw modul) manufacture bevel gears octoidal tooth profile. important: 5-axis milled bevel gear sets important choose same calculation / layout conventional manufacturing method. simplified calculated bevel gears on basis of equivalent cylindrical gear in normal section involute tooth form show deviant tooth form reduced tooth strength 10-28% without offset , 45% offset [diss. hünecke, tu dresden]. furthermore, involute bevel gear sets cause more noise.