for helical gear the helix angle generally ranges from
Helix angle In helical and worm gears, the helix angle denotes the standard pitch circle unless otherwise specified.[1] Application of the helix angle typically employs a magnitude ranging from 15° to 30° for helical gears, with 45° capping the safe operation limit. The angle itself may be cut with either a right-hand or left-hand orientation.[5] In its typical parallel arrangement, meshing helical gears requires that the helix angles are of the same magnitude and cut oppositely .
Rate equation k is the first order rate constant, which has units of 1/s or sâˆ’1.
g-force Human tolerances depend on the magnitude of the g-force, the length of time it is applied, the direction it acts, the location of application, and the posture of the body.[7][8]:350
Engagement ring In Western countries, it is customarily worn on the left hand ring finger, though customs vary across the world.