Figure 9.1 is an example of a shaft with several features. It is a shaft for a Caterpillar tractor transmission 1
|
|
- Jane Lamb
- 6 years ago
- Views:
Transcription
1 Chapter 9 Shaft Design Transmission shafts transmit torque from one location to another Spindles are short shafts Axles are non-rotating shafts Figure 9.1 is an example of a shaft with several features. It is a shaft for a Caterpillar tractor transmission 1. Figure 9.1: Example of a typical shaft design 1 From Frederick E. Giesecke, Technical Drawing, Chapter 13. 1
2 9.1 Shaft Loads Torsion due to transmitted torque Bending from transverse loads (gears, sprockets, pulleys/sheaves) o * a pulley and a sheave are essentially the same thing Steady or Fluctuating Steady transverse-bending load fully reversing bending stress (fatigue failure) 9.2 Attachments and Stress Concentrations Steps and shoulders are used to locate attachment (gears, sheaves, sprockets) Keys, snap rings, cross pins (shear pins), tapered pins Use generous radii to reduce stress concentrations Clamp collars Split collar Press fits and shrink fits Bearings may be located by the use of snap rings, but only one bearing is fixed Issues - axial location, disassembly, and element phasing (e.g., alignment of gear teeth for timing) MACHINE DESIGN - An Integrated Approach, 2ed by Robert L. Norton, Prentice-Hall 2000 bearing clamp collar step hub shaft hub key bearing snap ring taper pin press fit FIGURE 9-2 frame axial clearance sprocket step step gear press fit frame step sheave Various Methods to Attach Elements to Shafts Figure 9.2: Example of a shaft with various attachments and details 9.3 Shaft Materials Steel (low to medium-carbon steel) Cast iron Bronze or stainless steel Case hardened steel 2
3 9.3.1 Shaft Power Power is the time rate of change of energy (work). work = Force * distance or Torque * angle, so Power = Torque * angular velocity 9.4 Shaft Loading, Approaches to Analysis P wr = T orq ω (9.1) Most general form - A fluctuating torque and a fluctuating moment, in combination. If there are axial loads, they should be taken to ground as close to the load as possible. Given knowledge of the moments and the torques (i.e., mean and alternating components) Use the Design Steps for Fluctuating Stresses in Section 6.11 in combination with the multiaxial-stress issues addressed in Section Shaft Stresses Bending Stress Torsional Shear Stress M a c σ alt = k f I M m c σ mean = k fm I (9.2) (9.3) T a r τ alt = k fs J T m r τ mean = k fsm J (9.4) (9.5) Shaft Failure in Combined Loading 9.6 Shaft Design General Considerations 1. To minimize both deflections and stresses, the shaft length should be kept as short as possible and overhangs minimized. 2. A cantilever beam will have a larger deflection than a simply supported (straddle mounted) one for the same length, load, and cross section, so straddle mounting should be used unless a cantilever shaft is dictated by design constraints. (Figure 9-2 shows a situation in which an overhung section is required for serviceability.) 3. A hollow shaft has a better stiffness/mass ratio (specific stiffness) and higher natural frequencies than a comparably stiff or strong solid shaft, but will be more expensive and larger in diameter. 4. Try to locate stress-raisers away from regions of large bending moment if possible and minimize their effects with generous radii and relief. 5. General low carbon steel is just as good as higher strength steels (since deflection is typical the design limiting issue). 6. Deflections at gears carried on the shaft should not exceed about inches and the relative slope between the gears axes should be less than about 0.03 degrees. 3
4 MACHINE DESIGN - An Integrated Approach, 2ed by Robert L. Norton, Prentice-Hall 2000 from ref. 2 from ref. 3 σ a S e from ref. 3 σ a S e 2 σa τm S + 2 e S = 1 ys 2 σa τa S + 2 e S = 1 es τ m τ a S ys (a) Combined stress fatigue-test data for reversed bending combined with static torsion (from ref. 4) FIGURE 9-3 S es (b) Combined stress fatigue-test data for reversed bending combined with reversed torsion (from ref. 5) Results of Fatigue Tests of Steel Specimens Subjected to Combined Bending and Torsion (From Design of Transmission Shafting, American Society of Mechanical Engineers, New York, ANSI/ASME Standard B106.1M-1985, with permission) Figure 9.3: Shaft failure in combined loading 4
5 7. If plain (sleeve) bearings are to be used, the shaft deflection across the bearing length should be less than the oil-film thickness in the bearing. 8. If non-self-aligning rolling element bearings are used, the shaft s slope at the bearings should be kept to less than about 0.04 degrees. 9. If axial thrust loads are present, they should be taken to ground through a single thrust bearing per load direction. Do not split axial loads between thrust bearings as thermal expansion of the shaft can overload the bearings. 10. The first natural frequency of the shaft should be at least three times the highest forcing frequency expected in service, and preferably much more. (A factor of ten times or more is preferred, but this is often difficult to achieve). Designing for Fully Reversed Bending and Steady Torsion ASME Method (ANSI/ASME Standard for Design of Transmission Shafting B106.1M Uses the elliptical curve of Figure 9-3. Equations 9.5e and 9.6a,b. 9.6 can be applied only for constant torque fully reversed moment. No axial load More general loading cases require Equation 9.8. See Example Shaft Deflection d = 32SafetyF actor M 3 a (k f ) π S f 4 (T m ) S 2 (9.6) y Deflection is often the more demanding constraint. Many shafts are well within specification for stress but would exhibit too much deflection to be appropriate Keys and Keyways P gear d T a b l bearings are self-aligning so act as simple supports P9-03.pdf FIGURE P9-3 Shaft Design for Problems 9-6, , and 9-12 Figure 9.4: Shaft with overhung gear Example -Homework Problem 9-2 5
6 9.6.4 Splines Interference Fits Components can be attached to a shaft without a key or spline by using an interference fit. There are two methods used to assemble these components: press fit shrink (and/or expansion) fit The amount of interference is important The analysis of interference follows from the equations for pressure on thick-walled cylinders. A rule of thumb that is used is one to two thousands of diametral interference per unit of shaft diameter, e.g., a shaft of two inch diameter would have inches of interference with an attached gear hub. Machinists use a simplified approach to this 1/1000 of interference for each inch of diameter. However, there is a formal approach Standards have been developed for these fits. Metric Preferred Metric Limits and Fits ANSI B US Customary Preferred Limits and Fits for Cylindrical Parts ANSI B Terms related to Fits and Tolerances ANSI B Definitions D basic size of the hole d basic size of the shaft δ u upper deviation δ l lower deviation δ F Fundamental deviation D tolerance grade for the hole d tolerance grade for the shaft Tolerance the difference between the maximum and minimum size limits of the dimensions of a part Natural tolerance a tolerance equal to ± three standard deviations from the mean Clearance amount of space between an internal and external member Interference the amount of overlap between an internal and external member International Tolerance Grade Numbers (IT) designate groups of tolerances such that the tolerances for a particular IT number have the same relative level of accuracy, i.e., IT 9 Smaller numbers mean tighter tolerances, IT 6 through IT 11 are used for preferred fits. For a 32 mm hole we might use 32H7 The H establishes the fundamental deviation and the number 7 defines a tolerance grade of IT7. The grade number specifies a tolerance zone. For the mating shaft we might have 32g Table of Tolerance Grades 2 Lower and Upper Deviations For shaft letter codes c, d, f, g, and h 2 Shigley Table E-11, page
7 Table 9.1: International Tolerance Grades Basic Sizes All values in mm Tolerance Grades A < d B IT6 IT7 IT8 IT9 IT10 IT Upper deviation = fundamental deviation Lower deviation = upper deviation tolerance grade For shaft letter codes k, n, p,s, and u Lower deviation = fundamental deviation Upper deviation = lower deviation + tolerance grade Hole letter code is H Lower deviation = 0 Upper deviation = tolerance grade Fundamental Deviations for Shafts Metric Series These are related to the tolerance grades. See the table below. Capital letters always refer to the hole (or bore) and lowercase letters are used for the shaft Fit Types Table 9.3 provides a linguistic description for commonly used references to fit types. 9.8 Flywheel Design One of the biggest issues with regard to flywheels is balancing. Because they are, by intention, devices with large inertias, balancing them to remove eccentric loading and thus lower the loading on bearings and other components is very important. Flywheels develop large stresses at their inter hub connection due to dynamic forces caused by the spinning. These stresses can lead to failure. Careful design is required to avoid catastrophic failure. 9.9 Critical Speeds There are three types of vibration that are encountered with shafts: 7
8 Table 9.2: Fundamental Deviations for Shafts Metric Series basic dimension Clearance Transition Interference A < d B Upper Deviation Letter Lower-Deviation Letter c d f g h k n p s u
9 Table 9.3: Fit Types and their description Type of fit Reference Description Symbol Clearance Loose running fit For wide commercial tolerances or allowances H11/c11 on external members Free running fit Not for use where accuracy is essential, but good for large temperature variations, high running speeds, or heavy journal pressures H9/d9 Close running fit For running on accurate machines H8/f8 and for accurate location at moderate speeds and journal pressures Sliding fit Where parts are not intended to run H7/g6 freely, but must move and turn freely and locate accurately Locational clearance fit Provides snug fit for location of stationary H7/h6 (snug fit) parts, but can be freely assembled and disassembled Transition Locational transitional fit For accurate location, a compromise between clearance and interference H7/k6 Locational transitional fit For more accurate location where H7/n6 (wringing fit) Interference Locational transitional fit (tight fit) Medium Drive Fit Force Fit greater interference is permissible For parts requiring rigidity and alignment with prime accuracy of location but without special bore pressure requirements For ordinary steel parts or shrink fits on light sections, the tightest fit usable with cast iron Suitable for parts which can be highly stressed or for shrink fits where the heavy pressing forces required are impractical H7/p6 H7/s6 H7/u6 Lateral vibration Shaft whirl Torsional vibration 9.10 Couplings Many applications require us to connect one shaft to another axially. This is done with the use of couplings. Note that the possibility of getting the two shafts perfectly aligned (linearly and angularly) is essentially zero, so couplings are typically designed to accomodate some misalignment. Couplings come in many shapes, sizes, and degrees of misalignment. One type of coupling you might be familiar with is the universal joint, see Figure 9.5. A recent inovation used with front wheel drive is the CV (constant velocity) joint. Another type used widely for connections to electric motors is a flexible coupling, see Figure Summary While shafting can be purchased as a stock item, most applications require some customization of the layout and dimensioning to accommodate the attachment of components and bearings. Almost all shafts are 9
10 Figure 9.5: Typical automotive universal joint Figure 9.6: Small flexible couplings designed for high cycle fatigue (HCF), and are made of steel, since it has an fatigue limit. One is cautioned to applied the shaft diameter design equations presented in Norton (Equation 9.6 & Equation 9.8) properly since specific requirements must be met to apply these equations. Many other factors come into play during the shaft design process. These may include: keyways and keys splines couplings shaft vibrations and balancing flywheels 10
Chapter 7. Shafts and Shaft Components
Chapter 7 Shafts and Shaft Components 2 Chapter Outline Introduction Shaft Materials Shaft Layout Shaft Design for Stress Deflection Considerations Critical Speeds for Shafts Miscellaneous Shaft Components
More informationMAE 322 Machine Design Shafts -3. Dr. Hodge Jenkins Mercer University
MAE 322 Machine Design Shafts -3 Dr. Hodge Jenkins Mercer University Setscrews Setscrews resist axial and rotational motion They apply a compressive force to create friction The tip of the set screw may
More informationSheet 1 Variable loading
Sheet 1 Variable loading 1. Estimate S e for the following materials: a. AISI 1020 CD steel. b. AISI 1080 HR steel. c. 2024 T3 aluminum. d. AISI 4340 steel heat-treated to a tensile strength of 1700 MPa.
More informationShaft Design. Dr. Mostafa Rostom A. Atia Associate Prof.
Shaft Design Dr. Mostafa Rostom A. Atia Associate Prof. 1 Loading modes A shaft is a rotating member, usually of circular cross section, used to transmit power or motion. It provides the axis of rotation,
More informationChapter 11. Keys, Couplings and Seals. Keys. Parallel Keys
Chapter 11 Keys, Couplings and Seals Material taken for Keys A key is a machinery component that provides a torque transmitting link between two power-transmitting elements. The most common types of keys
More informationCONTENT. 1. Syllabus 2. Introduction 3. Shaft 4. Coupling. Rigid coupling. Flange coupling. Sleeve (or) muff coupling Split muff coupling
UNIT II 1. Syllabus 2. Introduction 3. Shaft 4. Coupling Rigid coupling CONTENT Flange coupling Protected flange coupling Unprotected flange coupling Marine type flange coupling Sleeve (or) muff coupling
More informationFUNCTION OF A BEARING
Bearing FUNCTION OF A BEARING The main function of a rotating shaft is to transmit power from one end of the line to the other. It needs a good support to ensure stability and frictionless rotation. The
More informationShrink Discs, Smart-Lock & Shaft Couplings
RINGFEDER Products are available from MARYLAND METRICS Shrink Discs, Smart-Lock & Shaft Couplings US 08 2009 Partner for performance RINGFEDER Products are available from MARYLAND METRICS P.O. Box 261
More informationSKF FX Keyless Bushings
SKF FX Keyless ushings Contents The SKF brand now stands for more than ever before, and means more to you as a valued customer. While SKF maintains its leadership as a high-quality bearing manufacturer
More informationBearing retention and clearances
Bearing retention and clearances Bearing retention 9 Radial retention 9 Axial retention 91 Positioning of single bearing assemblies 91 Positioning of two bearing assemblies 92 Axial retention processes
More informationNME-501 : MACHINE DESIGN-I
Syllabus NME-501 : MACHINE DESIGN-I UNIT I Introduction Definition, Design requirements of machine elements, Design procedure, Standards in design, Selection of preferred sizes, Indian Standards designation
More informationRFC SPECIALTY LOCKING DEVICES
RINGFEDER Products are available from MARYLAND METRICS P.O. Box 261 Owings Mills, MD 21117 USA email: sales@mdmetric.com web: http://mdmetric.com phones: (410)358-3130 (800)638-1830 faxes: (410)358-3142
More informationDESIGN OF MACHINE ELEMENTS UNIVERSITY QUESTION BANK WITH ANSWERS. Unit 1 STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS
DESIGN OF MACHINE ELEMENTS UNIVERSITY QUESTION BANK WITH ANSWERS Unit 1 STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS 1.Define factor of safety. Factor of safety (FOS) is defined as the ratio
More information3. BEARING ARRANGEMENT DESIGN
3. BEARING ARRANGEMENT DESIGN 3.1 GENERAL PRINCIPLES OF ROLLING BEARING ARRANGEMENT DESIGN Rotating shaft or another component arranged in rolling bearings is guided by them in radial as well as in axial
More informationRINGFEDER KEYLESS SHAFT/HUB CONNECTIONS LOCKING ASSEMBLIES TM LOCKING ELEMENTS TM SHRINK DISCS W-300-2
RINGFEDER KEYLESS SHAFT/HUB CONNECTIONS LOCKING ASSEMBLIES TM LOCKING ELEMENTS TM SHRINK DISCS W-300-2 1 Ringfeder Corporation Catalog W-300-1 Shaft-Hub Locking Devices Ringfeder unique frictional, keyless
More informationTRANSLATION (OR LINEAR)
5) Load Bearing Mechanisms Load bearing mechanisms are the structural backbone of any linear / rotary motion system, and are a critical consideration. This section will introduce most of the more common
More informationHigh Performance Gear Couplings
Overview -1 Overview Lovejoy High Speed and Engineered Special Gear Couplings The High Performance group of gear couplings consists of coupling designs that require additional engineering. While standard
More informationSKF FAG Timken NSK NTN
BEARINGS Rolling vs. Sliding Provides support for machine elements, while allowing smooth motion. µ = 0.001-0.005 Plain Bearings (Sliding/Hydrodynamic/ Journal/Sleeve) Rolling-Element Bearings Types Selection
More informationTRADITIONAL SHAFT HUB CONNECTIONS
TABLE OF CONTENTS MAV locking devices.... Pg. 2 Traditional shaft hub connections...pg. 3 Advantages of MAV locking devices...pg. 4 The wedge principle..... Pg. 5 Installation removal...pg. 6 Characteristics....
More informationVALLIAMMAI ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING ME6503 DESIGN OF MACHINE ELEMENTS QUESTION BANK
VALLIAMMAI ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING ME6503 DESIGN OF MACHINE ELEMENTS QUESTION BANK Unit -1 STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS Part-A 1. What are the
More informationAUTOFLEX DISC COUPLINGS
AUTOFLEX DISC COUPLINGS Contents & Coupling Application Configurations Coupling Type Typical Application Series Page No Introduction - Disc Configuration 2 Coupling Selection 3 & 4 Service Factors High
More informationDEPARTMENT OF MECHANICAL ENGINEERING
DEPARTMENT OF MECHANICAL ENGINEERING UABMCC01-DESIGN OF MACHINE ELEMENTS QUESTION BANK Prepared By: Dr.S.Prabhakaran, Associate Professor/Mechanical Engg. Unit -1 STEADY STRESSES AND VARIABLE STRESSES
More informationFor advanced drive technology CLAMPEX. Shaft-Hub-Connection. KTR Precision Joints CLAMPEX
technology CLAMPEX Shaft-Hub-Connection CLAMPEX KTR Precision Joints 07 technology Table of contents Page Brief information 09 Selection and calculation -5 CLAMPEX -Selection Shaft diameter = d 0 10 0
More informationDRUM BRAKE RIMS Periodic inspection of drum brake rims is necessary to determine indications of uneven or excessive wear. In general, brake rim failures other that regular wear are caused by brake linings
More informationHigh Performance Gear
JW High Performance Gear In This Section: FHS Type - High Speed Close Coupled FHSA Type - High Speed Standard FHSAA Type - High Speed Precision FHSPAA Type - High Speed Ultra Precision FHSMA Type - High
More informationSKF Disc Couplings. Selection
SK Disc Couplings The SK disc coupling is the ideal solution in medium to high applications that require torsional rigidity, offer some allowance for misalignment, and do not require lubrication. These
More informationCandy Coup-Link OVER YEARS OF INNOVATION
Candy Coup-Link Zero-backlash, flexible-shaft couplings High torque, excellent response Accommodates misalignment and shaft endplay Aluminum and stainless steel options Inch and metric bores available
More informationFLEXIBLE SHAFT COUPLINGS
FLEXIBLE JAW - SPIDER PERFORMANCE DATA Four types of elastomer designs and materials are offered to allow for flexibility in addressing specific application requirements. Standard Materials: SOX (NBR)
More informationCOUPLINGS HRC FLEXIBLE COUPLINGS CHAIN SHAFT COUPLINGS SPLINE CLUTCHES TORQUE LIMITERS TORQUE LIMITER COUPLINGS
COUPLINGS HRC FLEXIBLE COUPLINGS CHAIN SHAFT COUPLINGS SPLINE CLUTCHES TORQUE LIMITERS TORQUE LIMITER COUPLINGS FLEXIBLE COUPLINGS HRC TYPE Hercus HRC Couplings are designed for general-purpose applications
More informationChapter 11 Rolling Contact Bearings
Chapter 11 Rolling Contact Bearings 1 2 Chapter Outline Bearing Types Bearing Life Bearing Load Life at Rated Reliability Bearing Survival: Reliability versus Life Relating Load, Life, and Reliability
More informationComparison Chart. extremely difficult. Finally, separated components can rarely be re-used.
JAN 2014 Traditional Connections Why Go Keyless Keyed Bushing Systems Both QD and Taper-Lock bushing and weld-on hub systems are popular component mounting technologies. Yet both are ultimately keyed connections
More informationGRUNDFOS WHITE PAPER. When considering the overall pumping. COUPLINGS by Greg Towsley
GRUNDFOS WHITE PAPER COUPLINGS by Greg Towsley When considering the overall pumping system, the shaft coupling is not usually thought of as an important element in the system. Improper selection and maintenance
More informationAxial-radial cylindrical roller bearings
Axial-radial cylindrical roller bearings Designs and variants.............. 320 Bearing data..................... 321 (Boundary dimensions, tolerances) Product table 5.1 Axial-radial cylindrical roller
More informationSeries 54 and S54 Resilient Couplings
Series 54 and S54 Resilient s Bibby Transmissions Resilient s Bibby are the world originator of the resilient grid type shaft coupling, which is universally accepted by engineers to be one of the most
More informationKaydon white paper. The importance of properly mounting thin section bearings. an SKF Group brand. by Rob Roos, Senior Product Engineer
The importance of properly mounting thin section by Rob Roos, Senior Product Engineer an SKF Group brand Figure 1 Radial Load Reversing Thrust Overturning Moment Thin section ball have a much thinner cross-section
More informationShafts are usually available up to 7 meters length due to inconvenience in transport. In order to have a greater length, it becomes necessary to join
Design of shaft Shafts are usually available up to 7 meters length due to inconvenience in transport. In order to have a greater length, it becomes necessary to join two or more pieces of the shaft by
More informationIntroduction. Lubrication Related Failures. Gear Couplings. Failure Analysis All Types (Page 1 of 7)
All Types (Page 1 of 7) Introduction A gear coupling serves as a mechanical device which connects shafts of two separate machines and accommodates small amounts of shaft misalignment. Commercial gear couplings
More informationBearings and Spacers
Bearings and Spacers Section Contents Ball Bearings P4...Page 12 2 Bronze Bearings...Page 12 3 Moulded Bearings...Page 12 4 Bearing Pre load Washers...Page 12 Bearing Spacers...Page 12 6 Technical Information...Page
More informationIn-house development Own manufacturing Sole distributor in Germany Working with distributors worldwide
In-house development Own manufacturing Sole distributor in Germany Working with distributors worldwide External Clamping devices Overview 3073 Mini-Range For very low torque transmission Very small profile
More informationEflex and Powerpin Flexible Couplings
Eflex and Powerpin Flexible s Accepts parallel, angular and axial misalignment Torsionally flexible Simple assembly Wide range of standard designs No lubrication 80 or 90 shore hardness close fitting elements
More informationDESIGN OF MACHINE MEMBERS - I
R10 Set No: 1 III B.Tech. I Semester Regular and Supplementary Examinations, December - 2013 DESIGN OF MACHINE MEMBERS - I (Mechanical Engineering) Time: 3 Hours Max Marks: 75 Answer any FIVE Questions
More informationOVERLOAD CLUTCHES FOR INDEX DRIVES
The Driving Force in Automation OVERLOAD CLUTCHES FOR INDEX DRIVES WARNING WARNING This is a controlled document. It is your responsibility to deliver this information to the end user of the CAMCO indexer.
More informationTYPE TSC/TLC T SERIES FLEXIBLE DISC COUPLINGS
TYPE TSC/TLC A Stainless steel flexible discs B Overload collars C Cartridge transmission unit D Anti-fly feature E Anti-corrosion treatment F Hubs with API puller holes G Robust hub bolt H Large shaft
More informationCoupling Corporation of America 250 North Main Street -- Jacobus, PA Tel: Fax: Website: couplingcorp.
Coupling Corporation of America 250 North Main Street -- Jacobus, PA 17407 Tel: 717-428-0570 Fax: 717-428-2865 Website: couplingcorp.com WHY FLEXXORS? I will discuss here, some of the reasons why FLEXXORs
More informationFactors Influencing the Performance of Ball and Rolling Bearings
Factors Influencing the Performance of Ball and Rolling Bearings Course No: M02-033 Credit: 2 PDH Robert P. Tata, P.E. Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY
More informationBearings. Rolling-contact Bearings
Bearings A bearing is a mechanical element that limits relative motion to only the desired motion and at the same time it reduces the frictional resistance to the desired motion. Depending on the design
More informationPRECISION BELLOWS COUPLINGS
PRECISION BELLOWS COUPLINGS Bellows couplings are used where precise rotation, high speeds, and dynamic motion must be transmitted. They exhibit zero backlash and a high level of torsional stiffness, offering
More informationUNIT IV DESIGN OF ENERGY STORING ELEMENTS. Prepared by R. Sendil kumar
UNIT IV DESIGN OF ENERGY STORING ELEMENTS Prepared by R. Sendil kumar SPRINGS: INTRODUCTION Spring is an elastic body whose function is to distort when loaded and to recover its original shape when the
More informationMounting Overlap Shield. Face Clamps. Gap. Seat Depth. Lead In Chamfer. Loose Fit.
Mounting Introduction: Reali-Slim thin section ball bearings have a crosssection thickness that is much thinner than standard bearings of the same diameter, and are therefore more sensitive to shaft and
More informationQUESTION BANK Chapter:-6 Design of IC Engine Components
QUESTION BANK Chapter:-6 Design of IC Engine Components Que:-1 Design a cast iron piston for a single acting four stroke diesel engine for following data: Cylinder bore = 100 mm, stroke = 125 mm, Pmax
More informationLTI Cooling Tower Drive Shafts
LTI Cooling Tower Drive Shafts Highlights: Outstanding performance evolved from a helicopter heritage Designed specifically for cooling tower duty 100% fully integral carbon fiber epoxy construction. No
More informationMULTI CROSS RILLO. Highly flexible tyre coupling with taper bushings
MULTI CROSS RILLO Highly flexible tyre coupling with taper bushings Maschinenfabrik Dipl.-Ing. Herwarth Reich GmbH Vierhausstr. 53 D-44807 Bochum P.O. Box 10 20 66 D-44720 Bochum Tel.: +49 / (0)234 / 959
More informationtechnology made in Italy
technology made in Italy GB RD * * VS made in China Technology Made in Italy Since 1955 Varvel has been making speed reducers and variators for light industry applications. Reliable partner in power transmission
More informationVibration damping precision couplings
Vibration damping precision couplings In light of the advantages of elasticity, strength, resilience, and damping effects, elastomer materials are now being used in most areas of mechanical engineering.
More informationCLASSIFICATION OF ROLLING-ELEMENT BEARINGS
CLASSIFICATION OF ROLLING-ELEMENT BEARINGS Ball bearings can operate at higher speed in comparison to roller bearings because they have lower friction. In particular, the balls have less viscous resistance
More informationFor advanced drive technology CLAMPEX. Shaft-hub-connection. KTR Precision joints CLAMPEX
technology CLAMPEX Shaft-hub-connection CLAMPEX KTR Precision joints 227 technology Table of contents Page Brief information 228 Selection and calculation 25-255 CLAMPEX -Selection Shaft diameter = d 0
More informationTrack Rollers/ Cam Followers
Track Rollers/ Cam Followers Page Nomenclature...................................... 460 Introduction....................................... 462 Identification....................................... 462
More informationNow you can get design flexibility and lasting performance from our complete family of AccuDrive Precision Products.
ACCUDRIVE PRECISION PRODUCTS Now you can get design flexibility and lasting performance from our complete family of AccuDrive Precision Products. Series W Precision Servo Gearhead Output torque up to 8,500
More informationBall splines can be configured for an endless number of automated operations. Demystifying Ball Spline Specs
Ball splines can be configured for an endless number of automated operations. Demystifying Ball Spline Specs Place a recirculating-ball bushing on a shaft and what do you get? Frictionless movement of
More informationCYLINDRICAL ROLLER BEARING CATALOG TIMKEN THRUST AND PLAIN BEARINGS CATALOG
CYLINDRICL ROLLER BERING CTLOG TIMKEN THRUST ND PLIN BERINGS CTLOG Spherical Plain Bearings SPHERICL PLIN Overview: Timken s spherical plain bearings consist of a spherically ground inner ring housed in
More informationShaft Clamping Elements 8
Clamping Elements 8 BACK NEXT The Company Cross & orse was established in 14 through the amalgamation of two long standing and well respected companies in the Power Transmission Industry, T.D. Cross and
More informationSafety Coupling Overview
Safety Coupling Overview Safety couplings are used to minimize expensive damage when a collision occurs in a high performance servo drive system. When a collision occurs, the safety coupling will stop
More informationBearing preload. Preload considerations
Bearing preload There may be some applications where the bearing arrangement needs to be preloaded i.e. requires a negative operating clearance. In applications such as machine tool spindles, automotive
More information10 Thrust ball bearings
10 Thrust ball bearings Designs and variants.............. 1010 Single direction thrust ball bearings... 1010 Double direction thrust ball bearings.. 1010 Cages............................ 1010 Bearings
More informationTLC. T Series Couplings. Product Description. Design Features
TLC A Stainless Steel, Flexible Membranes B Overload Collars C Cartridge Transmission Unit D Anti-Fly Feature E Anti-Corrosion Treatment F Hubs with Puller Holes G Externally Wrenched Bolts H Large Shaft
More informationDrawn cup needle roller bearings
Drawn cup needle roller bearings Sealed drawn cup needle roller bearings... 78 Full complement drawn cup needle roller bearings... 79 3 Dimensions... 79 Tolerances... 79 Misalignment... 80 Cages... 80
More informationMINIATURE METAL BELLOWS COUPLINGS
VERSATILE AND PRECISE. Courtesy of CMA/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 426-5480 www.cmafh.com MINIATURE METAL BELLOWS COUPLINS SERIES MK 0.05 10 Nm THE
More informationEngineering Information
Engineering nformation Gear Nomenclature ADDENDUM (a) is the height by which a tooth projects beyond the pitch circle or pitch line. BASE DAMETER (D b ) is the diameter of the base cylinder from which
More informationTYPE TSC/TLC T SERIES METAL MEMBRANE COUPLINGS
A Stainless Steel Flexible Discs B Overload Collars C Cartridge Transmission Unit D Anti-Fly Feature E Anti-Corrosion Treatment F Hubs with Puller Holes G Externally Wrenched Bolts H Large Shaft Diameters
More informationLecture 13 BEVEL GEARS
Lecture 13 BEVEL GEARS CONTENTS 1. Bevel gear geometry and terminology 2. Bevel gear force analysis 3. Bending stress analysis 4. Contact stress analysis 5. Permissible bending fatigue stress 6. Permissible
More informationH1600 Mechanical Overload Clutches HOR Series
H1600 Mechanical Overload es HOR Series Section Contents FEATURES... 36 OPERATING PRINCIPLES... 36 SELECTION... 37 HOW TO ORER... 37 RATINGS AN IMENSIONS... 38 MOUNTING HOLE PATTERNS... 42 GENERAL INFORMATION...
More informationAPI 613, FIFTH EDITION, SPECIAL PURPOSE GEAR UNITS FOR PETROLEUM, CHEMICAL AND GAS INDUSTRY SERVICES OVERVIEW PRESENTATION
API 613, FIFTH EDITION, SPECIAL PURPOSE GEAR UNITS FOR PETROLEUM, CHEMICAL AND GAS INDUSTRY SERVICES OVERVIEW PRESENTATION by Robert W. (Wes) Conner Machinery Engineer Fluor Daniel Sugarland, Texas and
More informationShaft Couplings Flange-Couplings Rigid Shaft Couplings Flexible Couplings
Shaft Couplings Flange-Couplings Rigid Shaft Couplings Flexible Couplings 44 Edition 2013/2014 RINGSPANN Registered Trademark of RINGSPANN GmbH, Bad Homburg 2 Table of Contents Flange-Couplings Page Flange-Couplings
More informationCoupling Options for Every Application
Coupling Options for Every Application Bellows Couplings High torsional rigidity, low inertia, zero backlash and misalignment compensation Can be used at temperatures up to 570 F without any limitations
More informationProducts Catalogue. Quality Guaranteed
Products Catalogue CHAINS The GB range of Chains, Sprockets, Couplings and Pulleys has evolved from 20 years expertise in the importation and sale of the products locally in the Australia. The GB range
More informationLocking Assemblies Shrink Discs Rigid Couplings.
M I N I Locking Assemblies Shrink Discs Rigid Couplings www.mav.it our company We are an Italian company world renowned for our creativity and ethics. Established in 1989 we have rapidly built a reputation
More informationACCUDRIVE PRECISION PRODUCTS
ACCUDRIVE SERIES S ACCUDRIVE PRECISION PRODUCTS Now you can get design flexibility and lasting performance from our complete family of AccuDrive Precision Products. Series W Precision Servo Gearhead Output
More informationmodel HP Servo AccuDrive Family of Products
model 09090.01 AccuDrive Family of Products Series W Model RG Series S Series P Series E/LE ACCUDRIVE PRECISION PRODUCTS Now you can get design flexibility and lasting performance from our complete family
More informationDESIGN OF MACHINE MEMBERS I ASSIGNMENT
SHRI VISHNU ENGINEERING COLLEGE FOR WOMEN DESIGN OF MACHINE MEMBERS I ASSIGNMENT UNIT I 1 a). Draw stress strain diagram for the ductile and brittle material and compare them? show the salient points on
More informationCylindrical roller bearings
Cylindrical roller bearings Cylindrical roller bearings are manufactured in a various range of constructive types and sizes, particularly single row cylindrical roller bearings but also two or more row
More informationAGN 076 Alternator Bearings
Application Guidance Notes: Technical Information from Cummins Generator Technologies AGN 076 Alternator Bearings BEARING TYPES In the design of STAMFORD and AvK alternators, the expected types of rotor
More informationHelical Gears. Section Contents
Section Contents CATALOG NUMER / DIMENSIONS... 64-65 SELECTION PROCEDURE... 66 HORSEPOWER & TORQUE RATINGS... 67-68 STOCK ALTERED / CUSTOM HELICAL GEARS... 3-5 HELICAL GEAR ENGINEERING INFORMATION... 308-314
More informationMAIN SHAFT SUPPORT FOR WIND TURBINE WITH A FIXED AND FLOATING BEARING CONFIGURATION
Technical Paper MAIN SHAFT SUPPORT FOR WIND TURBINE WITH A FIXED AND FLOATING BEARING CONFIGURATION Tapered Double Inner Row Bearing Vs. Spherical Roller Bearing On The Fixed Position Laurentiu Ionescu,
More informationInstallation Procedures
For the precision ball and roller bearings supplied by MRC Bearings, skill and cleanliness while handling, mounting and dismounting are necessary to ensure satisfactory bearing performance. As precision
More informationDr. TRETTER AG. Tolerance Rings. safe cost-effective fast assembly
Dr. TRETTER AG Tolerance Rings safe cost-effective fast assembly Tolerance Rings are corrugated metal strips manufactured of high quality spring steel. Tolerance Rings are a fastening device between two
More informationShaft Couplings Tru-Line Flange-Couplings Rigid Shaft Couplings Flexible Couplings
Shaft Couplings Tru-Line Flange-Couplings Rigid Shaft Couplings Flexible Couplings Edition 2015/2016 RINGSPANN Registered Trademark of RINGSPANN GmbH, Bad Homburg Table of Contents Tru-Line Flange-Couplings
More informationLocking Assemblies & Locking Elements
US 01 2016 Locking Assemblies & Locking Elements Partner for Performance www.ringfeder.com Welcome to your system supplier for every aspect of power transmission Today s RINGFEDER POWER TRANSMISSION GMBH
More informationAmerigear Standard Gear Couplings Flanged and Continuous Sleeve Designs
A L T R A I N D U S T R I A L M O T I O N Amerigear Standard Gear Couplings Flanged and Continuous Sleeve Designs Fully-Crowned Teeth The Basis For Gear Tooth Design Amerigear... the first, the finest...
More informationBearing Fundamentals. Timken Training
Bearing Fundamentals Timken Training AGENDA Basic Bearing Design Ball Bearings Cylindrical Roller Bearings (CRB) Spherical Roller Bearings (SRB) Tapered Roller Bearings (TRB) 2 BASIC BEARING DESIGN Anti-Friction
More informationAccessories smart additions for efficiency and intelligent performance
smart additions for efficiency and intelligent performance Metal bellows couplings Perfectionists you can count on Metal bellows couplings are designed for the highest requirements in servo drive technology.
More informationBackground. The function of wear rings. Wear Rings. Throat Bushing
Fluid processing industries have embraced the use of composite materials in pumps to reduce vibration, increase mechanical seal life and MTBR (mean time between repair), reduce the risk of seizure, increase
More informationFLANGE. Flanges used for
FLANGE FLANGE Flanges with rating class designations 150, 300, 400, 600, 900, 1500, and 2500 in sizes NPS 1 2 through NPS 24 ASME B16.5: Pipe Flanges and Flanged Fittings (NPS 24 ) ASME B16.47: NPS 26
More informationHighest Precision: SPL Series
Highest Precision: SPL Series GAM can. Just ask! If you don t see exactly what you need, let us know. We can modify the SPL Series gearboxes to meet your needs. Page 3 provides a list of commonly requested
More informationSHAFT ALIGNMENT FORWARD
Service Application Manual SAM Chapter 630-76 Section 24 SHAFT ALIGNMENT FORWARD One of the basic problems of any installation is aligning couplings or shafts. Therefore, this section will endeavor to
More informationGEAR-COUPLINGS. Series LX GLX S-NX
GEAR-COUPLINGS Series LX GLX S-NX CONTENTS Application 3 Quality and production 3 Design and characteristics 3 selection 4-5 Key connections 6 Shrink-fit connections 7 Standard design with one-piece housing
More informationPOWERGRIP 5MGT & POLY CHAIN 5MGT SPROCKETS
Section 4 POWERGRIP 5MGT & POLY CHAIN 5MGT SPROCKETS Use with 5mm PowerGrip GT or Poly Chain GT belts. 2MGT and 3MGT pulleys available on request, please contact Gates customer service. Identification
More informationSolutions for power transmission. MAV-standardisarja.
Solutions for power transmission MAV-standardisarja www.konaflex.fi L O C K I N G A S S E M B L I E S Shrink disc Mini Series Rigid Couplings www.mav.it our company We are an Italian company world renowned
More informationTORQUE LIMITER SERIES 200
TORQUE LIMITER SERIES 200 Quality and Autogard are synonymous with overload protection. The company's reputation for high quality products is derived from over 40 years of design innovation and production.
More information1 Mounting V-belt drive (motor pulley, fly wheel, V-belts and guard)
Mounting V-belt drive (motor pulley, fly wheel, V-belts and guard) General safety instructions, requirements and procedures 1 Mounting V-belt drive (motor pulley, fly wheel, V-belts and guard) 1.1 General
More informationInfinit-Indexer Phase Adjuster. HDI Series. Total Motion Control. Harmonic Drive gear
Infinit-Indexer Phase Adjuster HDI Series Total Motion Control Harmonic Drive gear P r e c i s i o n G e a r i n g a n d M o t i o n Control HDI Infinit-Indexer Phase Adjusters HDI s are shaft mounted
More information