Fig. 13 Three types of bevel gears and a hypoid gear More

Fig. 14 Angles and terminology for straight bevel gears More

Fig. 3-14 Cast tooth bevel gears produced by the shell molding process to obtain excellent surfaces and close tolerances More

Fig. 12 Examples of near-net shape forged gears. (a) Spiral bevel gear with a 0.5 mm (0.02 in.) stock allowance developed for use on gears with a DP less than 7. (b) Coarse-pitch (less than 5 DP) spur gear with a stock allowance of 1 to 2 mm (0.04 to 0.80 in.). Source: Presrite Corporation More

Fig. 22.22 (a) Bevel gear. (b) Punch used to form bevel gear [ Lange et al., 1992b ] More

Fig. 1-5. Two types of spiral bevel sets, consisting of spiral bevel gear and pinion. More

Fig. 47 Carburized 4817 steel spiral bevel gear failure. The gear broke from fatigue at acute-angle intersections of mounting holes and tooth-root fillets as a result of through hardening. Dimensions given in inches 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. 4.51 Special bevel gear inductor. Source Ref 12 More

Fig. 11.22 Stainless steel bevel gear/indexing ratchet (2001 MPIF parts award recipient). Source: Ref 36 . Reprinted with permission from MPIF, Metal Powder Industries Federation, Princeton, NJ More

Fig. 9 Cutting teeth in a large straight bevel gear by template machining in a bevel gear planer More

Fig. 14 Revacycle cutter in position to cut a bevel gear More

Fig. 15 Angle of straight bevel gear tooth and sections of tools used for two-tool generating More

Fig. 32 Grinding of a spiral bevel gear. Dimensions in figure given in inches Gear details Type Spiral bevel (octoid) Number of teeth 51 Diametral pitch 4 Helix angle 30° Whole depth, mm (in.) 12.07 (0.475) Tolerance, tooth-to-tooth, mm (in.) 0.008 (0.0003 More

Fig. 5 Cast tooth bevel gear produced by the shell molding process to obtain excellent surfaces and close tolerances. Source: Ref 3 More

Fig. 6 Spiral bevel gear tooth failure. Tooth-bending fatigue with origin at the apex of the drilled bolt hole, which terminated just below the root radius. Original magnification at 0.5× More

Fig. 23 Spalling of spiral bevel gear teeth. Original pitting low on the active profile gives initiation to a fast and extensive progression of spalling over the top face and down the back profile. This is often called the cyclone effect. Original magnification at 0.25× More

Fig. 29 Spiral bevel gear and pinion set that sheared in the reverse direction. The pinion came to a sudden and complete stop at the instant of primary failure of the unit, allowing the gear to shear the contacting teeth and to continue rotating over the failed area. Original magnification More

Fig. 32 Spiral bevel gear teeth showing contact wear. Insert A shows a tooth area exhibiting no wear. Insert B shows abrasive wear clearly cutting away 3.2 mm (⅛ in.) of the surface without damage to underlying material. More

Fig. 39 Spiral bevel gear tooth failure. Internal rupture is lifting the entire top of a tooth. More