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Spur gears

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Published: 01 October 2005
Fig. CH17.1 Bevel and spur gears with the failed dowel bolts More
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Published: 01 December 2000
Fig. 5.33 Arrangement of 510 mm (20 in.) OD spur gears in a carburizing furnace More
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Published: 01 September 2005
Fig. 27 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
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Published: 01 September 2005
Fig. 35 Arrangement of 510 mm (20 in.) OD spur gears in a carburizing furnace More
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Published: 01 September 2005
Fig. 9 Sections of a spur gear (a) and a spur rack (b) More
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Published: 01 June 1985
Fig. 5-35. Spur gear damaged by the impact of a dropped gear. More
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Published: 01 September 2005
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
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Published: 01 September 2005
Fig. 5 The pinion, gear, and rack portions of a spur gear. Source: Ref 1 More
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Published: 01 June 1985
Fig. 1-1. Spur gear and pinion. More
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Published: 01 June 1985
Fig. 1-9. Diagramatic stress areas on basic spur gear tooth. More
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Published: 01 June 1985
Fig. 1-17. Spur gear. Tooth crushing at mid profile contact area. Reason: mated with pinion showing lead pattern of Fig. 1-15(f) . More
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Published: 01 June 1985
Fig. 3-3(a). A massive flat inclusion parallel to the top face of a spur gear tooth at a distance of 0.228 in. from the surface. This inclusion gave a sharp sonic indication for a distance of 1/2 in. along the tooth length. 3% nital etch, 200×. More
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Published: 01 June 1985
Fig. 3-5. Spur gear, end face ground. Grinding severity tempered the entire face (revealed by nital etching) and checked the surface (revealed by magnetic-particle inspection). More
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Published: 01 June 1985
Fig. 3-11. Longitudinal section through the center of a spur gear tooth, 1/2×. Macroetched to show material flow lines after forging and machining. More
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Published: 01 June 1985
Fig. 3-20. Case hardness traverse of an 8620H steel spur gear tooth using a Tukon microhardness tester with an indenter load of 500 g. Effective case depths are indicated by arrows. More
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Published: 01 June 1985
Fig. 4-11. Spur gear tooth, 100×. Nital etch. An internal crack originating at an oxide type of inclusion below the surface at the pitchline. A pit is being formed. More
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Published: 01 June 1985
Fig. 4-24. Spur gear, 0.5×. Pitting fatigue progressing to spalling. (a) Lines of pitting just below the pitchline; (b) light spalling up and over the addendum; (c) complete spalling of all teeth. More
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Published: 01 June 1985
Fig. 4-27. (a) Spur gear showing radial cracking due to frictional heat against the thrust face; 0.5×. (b) Progression of thermal fatigue produced by the frictional heat; 2×. More
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Published: 01 June 1985
Fig. 4-38. Spur gear tooth. Combination modes: Tooth bending impact (top); tooth shear (bottom). Arrows indicate direction of applied force. More
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Published: 01 June 1985
Fig. 4-50. Spur gear. External rupture (assembled, but not in service) with origin at the end face. (See Fig. 3-5 and 4-51 .) More