Search Results for Spur gears

Fig. 2 Examples of a flexible mold showing two castings of spur gears as produced from the mold. Source: iStock/coddy More

Fig. 37 Relations of wheel and workpiece in the form grinding of spur gears (top views). (a) Single-ribbed grinding wheel. (b) Multiribbed grinding wheel. (c) Two single-ribbed wheels, also known as a straddle wheel More

Fig. 2 Sections of a (a) spur gear, (b) spur rack, (c) helical gear, and (d) helical rack. Source: Ref 1 More

Fig. 1 Sections of a spur gear (a) and a spur rack (b). More

Fig. 3 Sections of a spur gear (a) and a spur rack (b) More

Fig. 8 Tooth contact lines on a spur gear (a), a bevel gear (b), and a low-angle helical gear (c). More

Fig. 1 Tooth contact lines on a spur gear (a), a bevel gear (b), and a low-angle helical gear (c). Lines on tooth faces of typical teeth are lines of contact. More

Fig. 513 Bending-fatigue fractures in several teeth of a spur gear of AISI 8620 steel, carburized and hardened to 60 HRC in the case. The tooth marked A apparently broke first, as the result of a fatigue crack that originated in the fillet to the left of the tooth (arrow). After this tooth More

Fig. 9 Lines of contact on a stepped spur gear. The heavy line on a tooth face of each gear section represents the instantaneous line of contact for that section. This offset-contact pattern is typical for helical, spiral bevel, and hypoid gears. More

Fig. 18 Spur-gear tooth. An internal crack originating at an oxide-type inclusion below the surface at the pitchline. A pit is being formed. Nital etch. 90× More

Fig. 31 Thermal fatigue cracking of a spur gear. (a) Radial cracking due to frictional heat against the thrust face. 0.4×. (b) Progression of thermal fatigue produced by the frictional heat. 1.5× More

Fig. 33 Spur-gear tooth showing combination failure modes. (a) Tooth-bending impact. (b) Tooth shear. Arrows indicate direction of applied force. More

Fig. 43 Spur gear. External rupture (assembled, but not in service) with origin at the end face. See also Fig. 44 . More

Fig. 44 Spur gear. External rupture originating from a grinding check. See also Fig. 43 . More

Fig. 90 Grinding cracks on the flanks of a small spur gear wheel. Source: Ref 30 More

Fig. 23 (a) Spur gear geometry with 60 teeth. (b) Two-dimensional plane-strain finite-element mesh. (c) Schematic plot of the bending load. Source: Ref 94 . Copyright ASTM International; used with permission More

Fig. 11 Spur gear tooth strength test. Source: Ref 17 More

Fig. 6 Illustration of the stress areas on basic spur gear tooth. Source: Ref 14 More

Fig. 12 Relation of cutter and workpiece when milling teeth in a spur gear More

Fig. 14 Progressive action in shear cutting teeth of an external spur gear. Shear cutting operation proceeds from roughing (a) to intermediate (b) to finishing (c) operations More