DP Steel Spur Gears

DP Steel Spur Gears

P.S. 14-1/2° Pressure Angle (will not operate with 20° spurs)

General characteristics of spur gears are :

the kind of gear most commonly used

categorized into cylindrical gear

comparatively easily manufactured

manufacture works with a high degree of accuracy

categorized into gear pair with parallel axes when classifying in relation to arrangement of gear shaft

tooth trace is straight and parallel to shaft, and distinguished from helical gear which is also cylindrical gear but whose tooth trace is helix

does not generate thrust force toward shaft direction when rotating

generates larger noise than helical gear

14-1/2° Pressure Angle

20° Pressure Angles

14-1/2° and 20° Pressure Angles This handy, steel gear gauge set consists of 16 leaves — 24 gauges — to measure both 14-1/2° and 20° Pressure Angle tooth form, in diametral pitch sizes 64, 48, 32, 24, 20, 16, 12, 10, 8, 6, 5 and 4. Pitch sizes 8, 6, 5 and 4 both 14-1/2° and 20° are cut on individual leaves. Pitch sizes 64 through 10 inclusive, have both 14-1/2° and 20° Pressure Angles on a single leaf.