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spur gears

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Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002145
EISBN: 978-1-62708-188-7
...Abstract Abstract This article discusses the different classes of gears, namely, spur, helical, herringbone, crossed-axes helical, worm, internal, rack, bevel, or face-type. It describes the methods used to cut the teeth of gears other than bevel gears: milling, broaching, shear cutting...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006820
EISBN: 978-1-62708-329-4
...Abstract Abstract This article first reviews variations within the most common types of gears, namely spur, helical, worm, and straight and spiral bevel. It then provides information on gear tooth contact and gear metallurgy. This is followed by sections describing the important points of gear...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006114
EISBN: 978-1-62708-175-7
... forming improves fatigue and wear resistance. Powder forging (press, sinter, forge, heat treat) 7.6–7.8+ Limited to spur, bevel, and face gears although trials with helical gears have been done ( Ref 2 ) Powder injection molding 7.8+ … Copper infiltrated steel Near full density Copper...
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
... because a gear is designed with a specific function in mind. The question is, Will this gear perform the function that was intended by the designer? Types of Gears Spur Gears Spur gears ( Fig. 1a ) are used to transmit motion between parallel shafts or between a shaft and a rack. The teeth...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003986
EISBN: 978-1-62708-185-6
... Fig. 2 Forging inaccuracy due to variation in the lateral positioning of the dies Fig. 1 Variation in thickness due to imprecise die movement (closure tolerance) Fig. 5 Spur gear forgings made by precision flashless forging Fig. 6 Axle shafts made by upsetter forging...
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
... = 1.000, a G = 1.000, a p = 1.250, a G = 0.750, whole depth 2.35 whole depth 2.35 Spur gears, 20° pressure angle 25 35 2.72 2.55 2.37 3.00 25 50 2.68 2.42 2.33 2.74 25 85 2.62 2.22 2.30 2.54 35 35 2.50 2.50 2.21 2.90 35 50 2.42 2.30 2.18 2.70...
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
... Factors for Determining the Pitting Resistance and Bending Strength of Spur, Helical, and Herringbone Gear Teeth,” AGMA 908-B89 (R1995), American Gear Manufacturers Association , 1995 Specimen Results Specimen Results Test Equipment Test Procedure Specimen Results Scoring...
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
... in moderately high quality gears. Spur, straight bevel, and miter gears are the easiest to apply P/M. Timing gears, sprockets, medium-load internal ring gears, medium-load reduction gears, pump gears. Hot forged P/M parts of near 100% density may be suitable for high-performance gears. Mechanical properties...
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
... Embossed Metals Single-Duty Machines Conventional (Standard) Machines Side-by-Side Machines Double-High Machine Rafted Machine Double-Head Machines Chain Drive Spur Gear Drive Worm Gear Drive Square Gearing Universal Drive Load Capacity Section Size and Shape Roll...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005869
EISBN: 978-1-62708-167-2
... the requirements and characteristics of induction hardening of transmission parts, such as bearings, shafts, and different types of gears, including bevel gears, spur wheel gears, helical gears, and splines. It provides information on process monitoring and the economic aspects of induction hardening...
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
... various tests for a number of bearing configurations. This also includes case-carburized consumable electrode vacuum arc remelted AISI 9310 spur gears. The L 10 lives varied inversely with the stress to the 8.4 power for the spur gears. Reducing the scatter in bearing lives so that the distribution...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006399
EISBN: 978-1-62708-192-4
.... , Kahraman A. , Anderson N.E. , and Chase D.R. , An Experimental Investigation of Spur Gear Efficiency , Trans. ASME, J. Mech. Des. , Vol 130 ( No. 6 ), 2008 , p 062601 10.1115/1.2898876 63. Li S. and Kahraman A. , A Transient Mixed Elastohydrodynamic Lubrication...
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
... 29.2 220 425 2 1 2 63–64 (b) Hog knife 9260 15.2 0.60 8.16 18.0 175 (i) 350 (i) 15 62 (b) Landing-gear spring 6150 19.1 0.75 14.7 32.5 260 500 2 3 4 56–57 (b) Internal gear 1117L (e) 25.4 1.00 1.36 3.0 205 400 3 … Spur pinion gear (j...
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
... or sliding. Pure rolling is probably the exception rather than the rule in the diverse applications of rolling components. For example, Fig. 1 is a schematic profile of meshing spur gears. When the gear teeth first touch, there is a measure of sliding plus rolling. When the contact point coincides...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005165
EISBN: 978-1-62708-186-3
... Plan view of a multiple-slide machine showing major components. A to D, integrated shafts; E, spur gearing; F, positive-action cam; G, slide; H, vertical post; J, bell crank; K and R, cams; L, stock straightener; M, automatic gripper in feed slide; N, links; O, adjustable crank; P, stationary gripper...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005456
EISBN: 978-1-62708-196-2
... Forging of Sintered Cylindrical Billets: An Analytical Approach , J. Mater. Process. Technol. , Vol 96 , 1999 , p 112 – 116 10.1016/S0924-0136(99)00266-6 30. Chitkara N.R. and Bhutta M.A. , Shape Heading of Splines and Solid Spur Gear Forms: ANA Analysis and Some Experiments...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000603
EISBN: 978-1-62708-181-8
... loading; and microcrack initiation and propagation. brittle fracture cleavage fracture fatigue cracks fatigue fracture ferritic ductile iron fractographs microcracking pearlitic ductile iron Fig. 36, 37, 38, 39, 40 Brittle cleavage fracture of ductile iron spur gear (ASTM A536, grade 100...
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
... in a furnace. For spur and helical gears such as the one shown in Fig. 12 , tooth-by-tooth scan hardening is generally done using a V-shaped inductor that fits in the root gap between two adjacent teeth ( Ref 1 ). The inductor is then scanned upward along the tooth surface to simultaneously harden the flanks...
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
... with filtered service lubricant Optimize gear geometry by: Using at least 20 teeth in the pinion for parallel-axis gears Using a non-hunting gear ratio Using helical gears with axial contact ratio mF ≥2.0 Using aspect ratio (face width to diameter ratio), ma, ≤1.0 for spur and single...
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
... such as decarburization. Gears are a common part type for applications of the MBN techniques This includes spur, helical, hypoid, worm, and other gear types. Typical applications for MBN techniques include detection of grinding retemper burn, evaluation of residual stresses, and detection of heat treatment defects...