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gear failures

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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
... Abstract Gears can fail in many different ways, and except for an increase in noise level and vibration, there is often no indication of difficulty until total failure occurs. This article reviews the major types of gears and the basic principles of gear-tooth contact. It discusses the loading...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003327
EISBN: 978-1-62708-176-4
... Abstract Mechanical tests are performed to evaluate the durability of gears under load. Gear tooth failures occur in two distinct regions, namely, the tooth flank and the root fillet. This article describes the common failure modes such as scoring, wear, and pitting, on tooth flanks. Failures...
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
... Table 1 Failure modes of gears Failure mode Type of failure Fatigue Tooth bending, surface contact (pitting or spalling), rolling contact, thermal fatigue Impact Tooth bending, tooth shear, tooth chipping, case crushing, torsional shear Wear Abrasive, adhesive Stress...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005867
EISBN: 978-1-62708-167-2
... a comparative study on the mechanical properties of contour-hardened and carburized gears. It concludes by describing typical failures of induction-hardened steels and the corresponding prevention methods. carburizing failure analysis gears induction hardening inspection material selection spin...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006354
EISBN: 978-1-62708-192-4
... Abstract This article is concerned with gear tooth failures influenced by friction, lubrication, and wear, and especially those failure modes that occur in wind-turbine components. It provides a detailed discussion on wear (including adhesion, abrasion, polishing, fretting, and electrical...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... of Scuffing and Scoring ,” NASA Technical Memorandum 83074 , NASA , 1983 30. Gopinath K. and Mayuram M.M. , “ Gear Failure ,” https://www.coursehero.com/file/15215391/2-8/ , accessed Jan 10, 2019 31. “ Gears and Scuffing Wear Review ,” Engineers Edge , https://www.engineersedge.com...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
... into the material. The balance of the fracture surface has a typical tensile failure pattern. SEM, 590× (J.H. Maker, Associated Spring, Barnes Group Inc.) Fig. 499 Fatigue fracture in an AISI 6150 steel spring leg of an aircraft main landing gear, heat treated to a minimum tensile strength of 1550 MPa...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... failure of an antifriction bearing, a nylon driving gear, and a polyoxymethylene gear wheel. antifriction bearing cohesive wear elastomers glassy thermoplastics interfacial wear lubricant mechanical properties nylon nylon driving gear plastics polyoxymethylene gear wheel semicrystalline...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004123
EISBN: 978-1-62708-184-9
..., hydraulic fluid, petroleum base; BFS, brake fluid, silicon; WTR, wide temperature range. Source: Ref 7 Fig. 8 M198 howitzer in “ready” position. Source: Ref 5 Fig. 9 Pressure washing of ammunition containers. Source: Ref 6 Fig. 1 Results of ring gear failure in the M198...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002373
EISBN: 978-1-62708-193-1
...) at higher magnification Fig. 7 Shelly rail spall from wheel-rail contact fatigue. Source: Ref 5 Abstract Contact fatigue is a surface-pitting-type failure commonly found in ball or roller bearings. This article discusses the mechanisms of contact fatigue found in gears, cams, valves...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006476
EISBN: 978-1-62708-190-0
... Characterization of Materials II , Springer , 1987 , p 481 – 489 5. Ashby M.F. and Jones D.R.H. , Engineering Materials 2: An Introduction to Microstructures, Processing and Design , Pergamon , 1986 6. Blake G. , Margetts M. , and Silverthorne W. , Gear Failure...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005842
EISBN: 978-1-62708-167-2
... Abstract This article focuses on the frequently encountered causes of induction coil failures and typical failure modes in fabrication of hardening inductors, tooth-by-tooth gear-hardening inductors, clamshell inductors, contactless inductors, split-return inductors, butterfly inductors...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003460
EISBN: 978-1-62708-195-5
..., Volume 21: Composites. Most of the information in this Section is geared toward organic-matrix composites, although there is some information on failure analysis and fractography of ceramic- and metal-matrix composites. Overview of Failure Analysis Coverage of this Section Any failure...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... lugs or eyes Built-in members that are the items necessary for the operation of lifting equipment, such as shafts, gears, and drums Most of the failures discussed are related to the more common and critical components of lifting equipment used in steel mills and similar industrial applications...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002457
EISBN: 978-1-62708-194-8
... regarding torque, oil levels, drive speeds, etc. Detect failure A gear failure is detected through a metal chip detector installed inside the gearbox housing. This function is for safety only and does not affect the speed-reduction functions. Simplify maintenance Appropriate positioning...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002401
EISBN: 978-1-62708-193-1
... Problems , J. Applied Mech. , 1953 7. Tallian T.E. , Failure Atlas for Hertz Contact Machine Elements , American Society of Mechanical Engineers , 1992 8. “Appearance of Gear Teeth—Terminology of Wear and Failure,” ANSI/AGMA 1010-E96, 1996 9. Moyer C.A. , “Comparing...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.9781627081672
EISBN: 978-1-62708-167-2
Book Chapter

Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006358
EISBN: 978-1-62708-192-4
... and elastohydrodynamic lubrication conditions is considered. However, determination of the size of the gear unit—that is, the pitch diameter, gear ratio, and the face width—often must involve consideration of the Hertzian conditions necessary to avoid pitting failure of the gear face within the design life. Several...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005982
EISBN: 978-1-62708-168-9
..., 1990 13. Alban L.E. , Systematic Analysis of Gear Failures , American Society for Metals , 1985 14. Jones K.D. , “Effects of Partial Pressure Carburizing on the Microstructure and Bending Fatigue Behavior of SAE 8620 and EX24 Steels,” M.S. thesis, Colorado School of Mines...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005967
EISBN: 978-1-62708-166-5
... Abstract Of the various thermal processing methods for steel, heat treating has the greatest overall impact on control of residual stress and on dimensional control. This article provides an overview of the effects of material- and process-related parameters on the various types of failures...