1-20 of 96 Search Results for

helical gears

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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...
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
... cylinder is the imaginary cylinder in a gear that rolls without slipping on a pitch cylinder or pitch plane of another gear). Fig. 1 Sections of a spur gear (a) and a spur rack (b). Helical Gears Helical gears ( Fig. 2a ) are used to transmit motion between parallel or crossed shafts...
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
... 2.05 35 35 2.06 2.06 1.88 2.34 35 50 2.02 1.92 1.84 2.15 35 85 1.99 1.80 1.80 2.00 35 275 1.90 1.70 1.75 1.82 Helical gears, 15° helix angle, 20° normal pressure angle 25 35 1.93 1.83 1.74 2.05 25 50 1.90 1.76 1.72 1.88 25 85 1.87 1.67 1.71...
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 associated parameters of a helical gear due to the side thrust action of the helix. Source: Ref 14 Fig. 4 Examples of external spur and helical gears. Source: Ref 14 Fig. 5 Six types of the basic stresses applied to gear teeth. Source: Ref 14 Fig. 6 Illustration...
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...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006034
EISBN: 978-1-62708-175-7
.... Helical shapes, typically helical spur gears, are produced in rigid compaction tool sets with punch rotation capability. In a simple system, a helical form lower punch is engaged in a die with a matching gear form. In such a system, the lower punch remains engaged in the die at all times, as is common...
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: 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: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006083
EISBN: 978-1-62708-175-7
... Compaction Process and HPP Processing Technique on Fine Pitched Spur and Helical Gears , Adv. PM Part. , Vol 5 , 1994 , p 73 – 89 5. Falleur G. and Hamilton J. , “Development of High-Density PM Processes for High Performance Applications,” presented at SIP 3, Technologies for PM...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006022
EISBN: 978-1-62708-175-7
... the cross-holes for the oil feed. Fig. 21 Variable valve timing (VVT) rotor adaptor assembly. GKN Sinter Metals, courtesy of MPIF Figure 22 shows a complex PM steel two-stage helical gear and spur pinion used in a power lift-gate actuator. Made to a nominal density of 6.85 g/cm 3...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002153
EISBN: 978-1-62708-188-7
... of bore size, bore shape, and stock removal. It illustrates the uses of air, ring, expanding, plug, and bar gages for automatic size control in power stroking of honing tools. The article provides a short description of various honing processes, such as external honing, gear tooth honing, plateau honing...
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: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005987
EISBN: 978-1-62708-168-9
...-hardened gear. The major applications of induction hardening are for gear teeth requiring high surface hardness ( Ref 3 ) and for gears whose size and configuration make it difficult to carburize and quench the entire part. External spur and helical gears, worm gears, internal gears, racks, and sprockets...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002134
EISBN: 978-1-62708-188-7
...) broaches. Internal broaches ( Fig. 3a ) can be rotated during passage through the work to produce internal helical keyways, splines, or gear teeth. Broached holes can be produced from holes that are cored, forged, punched, drilled, bored, or reamed. Fig. 3 Relationship of workpiece to tool...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006580
EISBN: 978-1-62708-290-7
... pelletized material is moved through the hole by a worm gear mechanism ( Fig. 2 ). Fig. 1 Ram extruder. Source: Ref 2 Fig. 2 Helical extrusion. Source: Ref 3 There are hot extrusion processes, cold extrusion processes, and chemical-based processes, each enabling a broad range...
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
... of the issues in the area of engine and power train tribology. It provides a discussion on lubricant rheology and the prediction of lubricating film thickness. The article reviews the frictional power loss in piston-cylinder conjunctions, engine bearings, and transmission and differential gearing systems...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005847
EISBN: 978-1-62708-167-2
... placement through servopositioners. Establishing and maintaining the calibration of this mechanism is critical, especially with helical gears, because there is a bilateral motion, greatly increasing the sensitivity. Reasonable coil efficiency is possible only by adding flux intensifiers to the coil...