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spur gears

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Arrangement of 510 mm (20 in.) OD <span class="search-highlight">spur</span> <span class="search-highlight">gears</span> in a carburizing furnace

Arrangement of 510 mm (20 in.) OD spur gears in a carburizing furnace

in Carburizing and Hardening Gears > Heat Treatment of Gears<subtitle>A Practical Guide for Engineers</subtitle>
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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Relations of wheel and workpiece in the form grinding of <span class="search-highlight">spur</span> <span class="search-highlight">gears</span> (top vi...

Relations of wheel and workpiece in the form grinding of spur gears (top vi...

in Machining, Grinding, and Finishing > Gear Materials, Properties, and Manufacture
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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Arrangement of 510 mm (20 in.) OD <span class="search-highlight">spur</span> <span class="search-highlight">gears</span> in a carburizing furnace

Arrangement of 510 mm (20 in.) OD spur gears in a carburizing furnace

in Carburizing > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 35 Arrangement of 510 mm (20 in.) OD spur gears in a carburizing furnace More
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Bevel and <span class="search-highlight">spur</span> <span class="search-highlight">gears</span> with the failed dowel bolts

Bevel and spur gears with the failed dowel bolts

in Failure of Dowel Bolts in an Aircraft Engine > Failure Analysis of Engineering Structures: Methodology and Case Histories
Published: 01 October 2005
Fig. CH17.1 Bevel and spur gears with the failed dowel bolts More
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Sections of a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span> (a) and a <span class="search-highlight">spur</span> rack (b)

Sections of a spur gear (a) and a spur rack (b)

in Basic Understanding of Gears > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 9 Sections of a spur gear (a) and a spur rack (b) More
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The pinion, <span class="search-highlight">gear</span>, and rack portions of a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span>. Source: Ref 1

The pinion, gear, and rack portions of a spur gear. Source: Ref 1

in Basic Understanding of Gears > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 5 The pinion, gear, and rack portions of a spur gear. Source: Ref 1 More
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Tooth contact lines on a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span> (a), a bevel <span class="search-highlight">gear</span> (b), and a low-angle h...

Tooth contact lines on a spur gear (a), a bevel gear (b), and a low-angle h...

in Fatigue and Life Prediction > Gear Materials, Properties, and Manufacture
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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<span class="search-highlight">Spur</span> <span class="search-highlight">gear</span> damaged by the impact of a dropped <span class="search-highlight">gear</span>.

Spur gear damaged by the impact of a dropped gear.

in Causes of Gear Failure > Systematic Analysis of Gear Failures
Published: 01 June 1985
Fig. 5-35. Spur gear damaged by the impact of a dropped gear. More
Book Chapter

Case Studies of Steel Component Failures in Aerospace Applications

By Scott MacKenzie
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130351
EISBN: 978-1-62708-284-6
..., inboard flap hinge bolt, nose landing gear piston axle, multiple-leg aircraft-handling sling, aircraft hoist sling, internal spur gear, and MLG axle. In addition, the chapter provides information on full-scale fatigue testing, nondestructive testing, and failure analysis of fin attach bolts. high...
Abstract
This chapter presents various case histories that illustrate a variety of failure mechanisms experienced by the high-strength steel components in aerospace applications. The components covered are catapult holdback bar, AISI 420 stainless steel roll pin, main landing gear (MLG) lever, inboard flap hinge bolt, nose landing gear piston axle, multiple-leg aircraft-handling sling, aircraft hoist sling, internal spur gear, and MLG axle. In addition, the chapter provides information on full-scale fatigue testing, nondestructive testing, and failure analysis of fin attach bolts.
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Grinding cracks on the flanks of a small <span class="search-highlight">spur</span> <span class="search-highlight">gear</span> wheel.

Grinding cracks on the flanks of a small spur gear wheel.

in Postcarburizing Mechanical Treatments > Carburizing: Microstructures and Properties
Published: 01 December 1999
Fig. 8.4 Grinding cracks on the flanks of a small spur gear wheel. More
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Diagramatic stress areas on basic <span class="search-highlight">spur</span> <span class="search-highlight">gear</span> tooth. Source: Ref 2

Diagramatic stress areas on basic spur gear tooth. Source: Ref 2

in Basic Understanding of Gears > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 20 Diagramatic stress areas on basic spur gear tooth. Source: Ref 2 More
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Relation of cutter and workpiece when milling teeth in a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span>

Relation of cutter and workpiece when milling teeth in a spur gear

in Machining, Grinding, and Finishing > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 2 Relation of cutter and workpiece when milling teeth in a spur gear More
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Progressive action in shear cutting teeth of an external <span class="search-highlight">spur</span> <span class="search-highlight">gear</span>. Shear c...

Progressive action in shear cutting teeth of an external spur gear. Shear c...

in Machining, Grinding, and Finishing > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 4 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
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Hobbing of a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span>

Hobbing of a spur gear

in Machining, Grinding, and Finishing > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 6 Hobbing of a spur gear More
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Rack-type cutter generating the teeth of a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span>

Rack-type cutter generating the teeth of a spur gear

in Machining, Grinding, and Finishing > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 19 Rack-type cutter generating the teeth of a spur gear More
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<span class="search-highlight">Spur</span> <span class="search-highlight">gear</span> tooth strength test. Source: Ref 17

Spur gear tooth strength test. Source: Ref 17

in Powder Metallurgy > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 11 Spur gear tooth strength test. Source: Ref 17 More
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Bending-fatigue fractures in several teeth of a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span> of AISI 8620 stee...

Bending-fatigue fractures in several teeth of a spur gear of AISI 8620 stee...

in Gear Failure Modes and Analysis > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 9 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 broke More
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Thermal fatigue cracking of a <span class="search-highlight">spur</span> <span class="search-highlight">gear</span>. (a) Radial cracking due to frictio...

Thermal fatigue cracking of a spur gear. (a) Radial cracking due to frictio...

in Gear Failure Modes and Analysis > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 28 Thermal fatigue cracking of a spur gear. (a) Radial cracking due to frictional heat against the thrust face. Original magnification at 0.4×. (b) Progression of thermal fatigue produced by the frictional heat. Original magnification at 1.5× More
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<span class="search-highlight">Spur</span>-<span class="search-highlight">gear</span> tooth showing combination failure modes. (a) Tooth-bending impact...

Spur-gear tooth showing combination failure modes. (a) Tooth-bending impact...

in Gear Failure Modes and Analysis > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 30 Spur-gear tooth showing combination failure modes. (a) Tooth-bending impact. (b) Tooth shear. Arrows indicate direction of applied force. More
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<span class="search-highlight">Spur</span> <span class="search-highlight">gear</span> failure. External rupture (assembled, but not in service) with or...

Spur gear failure. External rupture (assembled, but not in service) with or...

in Gear Failure Modes and Analysis > Gear Materials, Properties, and Manufacture
Published: 01 September 2005
Fig. 40 Spur gear failure. External rupture (assembled, but not in service) with origin at the end face. See also Fig. 41 . More