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idler gears

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Published: 01 August 2013
Fig. 21 Helix angle variation ( f hβmax − f hβmin ) of idler gears with 179 mm diameter made of 16MnCr5 after heat treatment with different quenching methods More
Image
Published: 01 December 1998
Fig. 2 Comparison of material use for a conventionally forged reverse idler gear (top) and the equivalent powder forged part (bottom). Material yield in conventional forging is 31%; that for powder forging is 86%. 1 lb = 453.6 g More
Image
Published: 01 January 1987
Fig. 511 Bending-fatigue fracture in two teeth of a reverse idler gear of AISI 8617 steel, carburized and hardened to 60 HRC in the case. Arrows point to the root fillets on both sides of each tooth, where fracture began due to excessive stress in these locations. ∼2× More
Image
Published: 30 September 2015
Fig. 15 Comparison of material used for a conventionally forged reverse idler gear (top) and the equivalent powder-forged part (bottom). Material yield in conventional forging is 31%; that for powder forging is 86%. 1 lb = 453.6 g. Source: Ref 66 More
Image
Published: 01 January 2005
Fig. 16 Comparison of material use for a conventionally forged reverse idler gear (top) and the equivalent powder forged part (bottom). Material yield in conventional forging is 31%; that for powder forging is 86%. 1 lb=453.6 g. Source: Ref 59 More
Image
Published: 01 January 2002
Fig. 11 Photoelastic pattern of idler gear between load input pinion and load output gear. More
Image
Published: 01 August 2013
Fig. 10 Setups for flame hardening gears, idler wheels, and sprockets. (a) Radiant burners. (b) High-velocity convection burners. Wide-face parts can be heated with double or staggered rings of burners. More
Image
Published: 01 August 2013
Fig. 27 Effects of various carburizing and quenching methods on dimensions of 4620H steel reverse-idler gears for power-grader transmissions. Gears were carburized to a depth of 0.8 to 1.0 mm (0.030 to 0.040 in.) and quenched to a hardness of 58 to 63 HRC. More
Book Chapter

By Volker Heuer
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005770
EISBN: 978-1-62708-165-8
... values can be predicted in industrial practices. It also discusses the improvements in distortion control with the application of gas-flow reversing and dynamic gas quenching. core hardness distortion dynamic gas quenching gas quenching high pressure gas quenching idler gears internal ring...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... gear acting as an idler, or reversal, gear between the input member and the output member of a gear train has an extremely complicated pattern of stresses. The most common application is the planet pinion group in wheel-reduction assemblies or in planetary-type speed reducers. The photoelastic study...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005126
EISBN: 978-1-62708-186-3
... of a continuous train of spur gears mounted at the rear end of each spindle shaft. Idler gears are positioned between each unit to transfer the drive equally to all the units. Worm Gear Drive A worm gear drive is very similar to the spur gear drive. However, instead of using the idler gear to transfer...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005952
EISBN: 978-1-62708-168-9
... Steering-knuckle pins (a) Side-pinion axles (a) Reverse idler-gear shafts (a) Counter-gear shafts (a) Semifinished before treatment Finish-ground after treatment Operated frequently in bronze bushings High wear resistance Resistance to relatively high unit loads that cause brinelling. Resistance...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005802
EISBN: 978-1-62708-165-8
..., called the StopGQ (ECM Technologies) quenching process, was presented ( Ref 19 ). It demonstrated that besides less distortion, elimination of cracking, and better impact properties, improved fatigue resistance was also obtained. Tests were made with transmission gears. Studied situations included low...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002375
EISBN: 978-1-62708-193-1
... Abstract This article summarizes the various kinds of gear wear, including fatigue, impact fracture, wear, and stress rupture, describes how gear life in service is estimated. It presents the rules concerning lubricants in designing gearing and analyzing failures of gears. The article presents...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005868
EISBN: 978-1-62708-167-2
... and cast iron to undergo induction hardening. It provides a comparison on single-shot and scan hardening methods to select the suitable one for induction heat treating of gears and sprockets. The article describes the effect of microstructure, residual stress, and workpiece position on induction hardening...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
..., sulfide stress-corrosion failure, stress-corrosion cracking, and hitch post shaft failure of these steels. The components considered in the article include tail-rotor drive-pinion shafts, pinion gears, outboard-motor crankshafts, bull gears, diesel engine bearing cap bolts, splined shafts, aircraft...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005807
EISBN: 978-1-62708-165-8
...(a) , or multiple rows of burners may be arranged to cover completely the surface to be hardened. Fig. 10 Setups for flame hardening gears, idler wheels, and sprockets. (a) Radiant burners. (b) High-velocity convection burners. Wide-face parts can be heated with double or staggered rings of burners...
Book Chapter

By Robert Bolin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003982
EISBN: 978-1-62708-185-6
.... Fig. 1 Ring rolling process. (a) Automotive ring gear during rolling. (b) View of a contour ring during rolling from the control room Ring height is governed either by being contained by the top and bottom of the main roll or by the use of axial rolls that simultaneously act on the top...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
... (a) For 0.5 kg (1.1 lb) parts. (b) Sintering=100% Fig. 16 Comparison of material use for a conventionally forged reverse idler gear (top) and the equivalent powder forged part (bottom). Material yield in conventional forging is 31%; that for powder forging is 86%. 1 lb=453.6 g. Source: Ref 59...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... final dimensions and surface finish. One of the main economic benefits of powder forging is the reduced amount of machining required, as illustrated in Fig. 2 . Fig. 2 Comparison of material use for a conventionally forged reverse idler gear (top) and the equivalent powder forged part (bottom...