Engineering, Manufacturing Tolerance Limits Fits Charts | ISO 286 Tolerances

Geometric Tolerances, Limits Fits Charts, Mechanical Tolerances Tables and Calculators

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This web page contains links to Mechanical Tolerance Design Manufacturing Calculators and Tables, GD&T, Geometric Dimensioning and Tolerancing calculators, Standard mechanical tolerances and other mechanical tolerance resources for design, engineering, manufacturing and quality.

The links contained on this page are tolerance charts that I use in my design activities. Please use with judgment, as your particular design requirements may be less or more stringent.

Tolerance Charts	Description
Preferred Tolerance Limits Fits ANSI B4.1	This Standard defines preferred limits and fits for press fits applications of non-threaded cylindrical features
Preferred Tolerances Limits Fits Calculator RC - LTs	This Calculator will determine the preferred size and limit tolerances for Running or sliding to interference-locational fits per ANSI B 4.1.
Preferred Force Shrink Fits ANSI B4.1 Calculator	This Calculator will determine the preferred size and limit tolerances for a force or shrink fit per ANSI B 4.1.
Press Fit Forces Stress Design Calculator	This calculator will determine a variety of force, stress and other design parameters for press fit applications.
ISO Tolerances For Fasteners	Positional & Limits of Size
Formulas for Standard International Tolerance (IT) Grades per.ISO 286-1 1993 and ISO 919-1993	International Tolerances per. ISO 919 and ISO 286 1993
International Tolerances Grades	International Tolerance Grade Chart
Preferred Tolerances Metric ISO 286	Metric Mechanical Tolerance Preferred Size Data
Table of Hole Bore Tolerances per. ISO 286 Calculator	Plus and minus tolerance for the specific ISO 286 hole tolerance data.
Table of Shaft Tolerances per. ISO 286 Calculator	Plus and minus tolerance for the specific ISO 286 Shaft tolerance data.
General ISO Geometrical Tolerances Per. ISO 2768	The following are general geometrical tolerances per. ISO 2768 for the following: Linear Dimensions, External Radius and Chamfer Heights, Straightness and Flatness, Perpendicularity, Symmetry, Runout
Dowel Pin Installation Tolerances	Slip & Press fit design tolerances for ANSI size dowel pins.
Hex Head Bolt Installation & Design Tolerances	Hole - Fastener Fits for ANSI Hex Head Blots and Screws.
Pan Head Installation & Design Tolerances	Hole - Fastener Fits

General Tolerances Shaft - Holes Fits Tolerance classes per ANSI ASME B4.1 Class I Fits & Limits Tolerances Class II Fits & Limits Tolerances Class III Fits & Limits Tolerances Class IV Fits & Limits Tolerances Class V Fits & Limits Tolerances	Fixed & Rotating, Class I, II, III, IV, V
Extension Spring Normal Load Tolerances load / force Specifications	Most extension springs are specified with initial tension, which is an internal force that holds the coils tightly together.
Coil-Diameter Tolerances of Torsion Springs Specifications	Torsional Spring wire-diameter tolerances, which are usually quite close, then govern the dimensional variations in body length and therefore in the spacing of the spring arms.
Socket Head Installation & Design Tolerances	Hole - Fastener MEchanical Tolerance Fits Chart
Drill and Counterbore Sizes for Socket Head	Drill and Counterbore Sizes for Socket Head Cap Screws per. ASME B18.3
Shaft to Shaft Axial Alignment Design Tolerances Tables	Design for shaft-to-shaft alignment is the positioning of the rotational centers of two or more shafts so that the shafts are co-axial when the machine is in operation. The purpose of shaft alignment is to increase the operating life span of rotating machinery and to achieve high efficiency.
Spline Sockets Go and No Go Gages	Dimensions of Go and No Go Gages for Spline Sockets per. ASME B18.3
Go and No go Gages for Hexagon Sockets or Head	Dimensions of Go and No go Gages for Hexagon Sockets per. ASME B18.3
Machinist Drill Tolerance Capabilities Chart	Drilled hole mechanical tolerance capabilities data.
Gage Tolerance Calculator ASME B89.1.5 Pin and Ring Gauges	This calculator will determine the gage class and tolerance per ANSI ASME B89.1.5 for cylindrical I.D and O.D. gauges.
Gage Design and Gage Making Manual	A treatise on the development of gaging systems for interchangeable manufacturing
Sheet Metal Gauge Tolerances Chart	During the rolling process the rollers bow slightly, which results in the sheet metal being thinner on the edges.
Machining Tool Relief Grooves Dimensions and Tolerances	Size, Dimensions and Tolerances for Machined Tool Relief Grooves. Per industry standards DIN ISO 509 and IS 3428
Gage Blocks Tolerances Specifications Table JIS B 7506	Accuracy Specification of Gauge Blocks by JIS B 7506-1997 Japan Specification.
Gage Blocks Tolerances Specifications Table BS 4311	Accuracy Specification for Gauge Blocks by BS 4311: Part 1: 1993 (UK) standard at 20??C.
Gauge Blocks Tolerances Specifications Table ASME B89.1.9	The following table gives the Accuracy Specifications for Gage Blocks by ASME B89.1.9 (USA) at 20??C.
Ring gage and Master Disc Tolerances per B89.1.5	This table defines Ring gage and Master Disc mechanical tolerances per B89.1.5-1998 (R2009)
Gauge Blocks Tolerances Specifications Table DIN 861	Table of tolerances for gauge blocks according to DIN 861, corresponds with ISO 3650 and SS 3348).
Gauge Block Handbook	Gauge block calibration, application and history - 143 pages developed by industry standards organization NIST
Onsite GD&T Training per ASME Y14.5-2009 and ISO 1101 Our trainer is certified per. ASME Y14.5 at the senior level GDTP GD&T ASME Y14.5-2009 Basics Training - Entry level and refresher GD&T training GD&T ASME Y14.5-2009 Intermediate Training - This GD&T class combined Interpretation and Application. Excellent class for experience manufacturing quality, design and engineering GD&T ANSI, ASME or ISO Applications Training - Advanced applications concepts in GD&T, including tolerance analysis, organizational applications custom classes available. G&T ISO 1101 Training - ISO G&T Geometric Tolerancing available. Basics, Intermediate, etc. Online GD&T Fundamentals Training - Self paced ASME GD&T Geometric Dimensioning and Tolerancing Training.
GD&T and Mechanical Tolerancing Books Related - Online
Geometric Boundaries II, GD&T per. ASME Y 14.5-2009	Interpretation and Application of ASME Y14.5-2009 GD&T
Geometric Boundaries Workbook Answers	Access to Geometric Boundaries Workbook Questions
Geometric Boundaries, GD&T per. ASME Y14.5M-1994	Geometric Boundaries, Interpretation and Application of GD&T per. ASME Y14.5M-1994
Geometrical Boundaries, G&T per. ISO 1101	Geometrical Boundaries, Interpretation and Application of G&T per. ISO 1101
Geometric Metrology per. ASME Y14.5-2009	Dimensional Tolerances Inspection & Practices in Manufacturing Fundamentals
Limited Dimension Drawings LDD, Critical Feature Drawings	Presentation and research for Limited Dimension Drawings LDD, Critical Feature Drawings
Differences Between ASME Y14.5-2009 and ISO 1101 Geometric Dimensioning and Tolerancing	Quick Guide to differences Between ASME Y14.5-2009 and ISO 1101 Geometric Dimensioning and Tolerancing
Differences Between ASME Y14.5-2009 and ASME Y14.5-2018	The ASME Y14.5-2018 standard is the only dimensioning and tolerancing guideline for the design language of geometric dimensioning and tolerancing (GD&T.) within the United States.
Gauge Block Handbook	Gauge block calibration is one of the oldest high precision calibrations made in dimensional metrology. Since their invention at the turn of the century gauge blocks have been the major source of length standardization for industry. In most measurements of such enduring
Measuring Pitch Diameters using Three Wire Method	The pitch diameter of a screw thread may be measured very accurately by means of some form of dial caliper or micrometer and three wires of equal diameter.
What's New in ASME Y14.5-2009	Overview of changes to the ASME Standard
Sample Size Calculator for Prevalence Studies	Using random (not cluster) sampling.
Dimensional Measurement Planning	This resource requires a Premium Membership
GD&T Training Videos and Related Dimensioning and Tolerancing Applications
Choosing Geometric Tolerances GD&T for Design Tool	This tool will assist in design and selection of the correct geometric tolerances GD&T per ASME Y14.5-2009
Measuring and Designing Dovetail Slides	Dovetail slides that must be machined accurately to a given width are commonly gaged by using a gage pin..
Assembly Tolerance Analysis Calculator	100 % interchangability and Six Sigma assembly and part tolerance analysis calculator.
Hole Feature Maximum Material Condition MMC vs Feature Size Tolerance Chart Calculator	Hole MMC Maximum Material Condition Tolerance Chart Calculator per .ASME Y14.5-2009, ASME Y14.5M - 1994, or ISO 1101 Geometric Dimensioning and Tolerancing (GD&T).
External Shaft Feature Maximum Material Size MMC vs Feature Size Tolerance Chart Calculator	Shaft Diameter MMC Maximum Material Condition Tolerance Chart Calculator
GD&T Training & Applications Videos	GD&T and related training videos
Thread Checking Three Wire Method	This method is extensively used in checking the accuracy of threaded plug gages and other precision screw threads.
Parallelism of Surface to Datum Center Plane Application	This video illustrates a parallelism application on an as-cast box requiring post machining. GD&T training
GD&T Application Single Datum Axis - Two Datum Features	When RMB is applied to a geometric tolerance to multiple datum features of size to establish a single datum element(s), the datum feature simulator for each feature shall be at a fixed location and orientation relative to each other
Position Tolerance Application Training Video (Video Center Being Reworked)	This GD&T Training video shows a design where the requirements are that a minimum position tolerance applies at the nominal size. As the feature of size diverges either towards LMS or MMC, the position tolerance is specified to increase from the nominal position tolerance.
Refinement of Orientation using GD&T Parallelism Video	This application video explores a couple of GD&T methods to refine the orientation of two hole features for a piston connecting rod.
Perpendicularity of Hole Application GD&T Training Video	GD&T Perpendicularity of Hole Application. Perpendicularity is the condition of a surface, axis, or line, which is 90 deg. from a datum plane or a datum axis.
GD&T Cylindricity Engine Bore Application Video (Video Center Being Reworked)	GD&T Cylindricity Engine Piston Bore Application. Cylindricity describes a condition of a surface of revolution in which all points of a surface are equidistant from a common axis.
Circularity of Flare Fitting Application GD&T Training Video	Circularity describes the condition on a surface of revolution (cylinder, cone, or sphere) where all points of the surface intersected by any plane are... more
Straightness of Surface GD&T Training Application Video	This video illustrates a Straightness of Surface Application on a cam follower wheel.
What is the Right Flatness Tolerance for a Gasket Application	Flatness Gasket Application - This video discusses how to determine the right Flatness tolerance when a gasket is used between surfaces. GD&T Training
Circular Runout of Surface Measurement Video	Circular Runout Surface Perpendicular to Datum Axis
Straightness of Axis GD&T Training Application Video	Straightness of Axis Application - This video discusses how to determine the right straightness tolerance when the outer and inner tolerance boundaries are known.
GD&T Related Tolerance Calculators, Tools, Geometric Dimensioning Tolerancing Training Calculators
Composite Position Tolerance GD&T Calculator Internal FOS for Dimensional Inspection	PLTZF tolerance applied at MMC , FRTZF tolerance applied at MMC, All dimensional unit applied with uniform units - all inches, mm, m, etc. , Datum applied at RFS, FRTZF datum is perpendicular to features , X and Y measurements taken with datum's established
Composite Position Tolerance GD&T Calculator External FOS	GD&T Composite Position Tolerance Calculator for Dimensional Inspection: External Feature of Size - post, tab, pipe, etc..
Concentricity Calculator ASME Y14.5-2009	This calculator calculates the as-measured Concentricity per. ASME Y14.5 - 2009, Dimensioning and Tolerancing Standard, also know as Geometric Dimensioning and Tolerancing (GD&T).
Tolerance Calculator Floating Fastener Condition	This calculator will determine the unknown variable of a floating fastener design condition using ASME Y14.5 - 2009 and ISO 1101 and derivative GD&T standards.
Tolerance Calculator Fixed Fastener Condition	This calculator calculates fixed fastener position tolerances utilizing principles and concepts within ASMEY14.5-2009 and ASME Y14.5M - 1994, Geometric Dimensioning and Tolerancing (GD&T).
Tolerance Calculator Projected Tolerance Zone	This tolerance calculator will calculate the required field compensating for the effects of the fastener projection. Calculations assume a line-line case at tolerance and feature-of-size maximum departure. Calculations are compliant with geometric dimensioning and tolerancing standards.
Tolerance Calculator 2 Mating Features @ MMC	This calculator will calculate the position tolerances for two coaxial mating diameters.
Tolerance Calculator 3 Mating Features @MMC	This calculator will calculate the position tolerances for three coaxial mating diameters.
Tolerance Calculator - GD&T True Position	This calculator will convert coordinate measurements to position tolerances. Two inputs are required to determine the Geometric Tolerance.
Tolerance Calculator - Spherical True Position	This calculator will convert coordinate measurements to position tolerances for spherical applications. Three inputs are required.
Hole / Feature Pattern Plot	This engineering calculator will determine the true and allowed position tolerance and graph the resulting data points.
Measuring Large Bolt Circle Equations and Review	For bolt circles that are too large to measure using typical methods or the measuring tools. Measuring or determining distances for a bolt circle geometry can be facilitated using the following equations and methods.
Measuring Large Bolt Circle Even Number of Holes Calculator	This calculator will determine the even number of holes within a bolt circle.
Measuring Large Bolt Circle Even Number of Holes Calculator #2	Even Number of Holes Within Circle #2: To measure or determine the unknown distance "c" over adjacent hole or pins (largest gage pins that can fit into holes) within a bolt circle of holes (n or number of bolts holes must be even and greater than 4)
Measuring Large Bolt Circle Odd Number of Holes Calculator #3	Odd Number of Holes in Circle : To measure the unknown distance x over semi-opposite holes using pins (largest gage pins that can fit into holes) and the number of holes n is odd and greater than 3, and the distance c between adjacent holes (pins) is known
Manufacturing Workshop Technology and Calculations	Manufacturing, quality and measurement calculations and methods manual. Premium membership required.
Bolt Circle Coordinate Plot & Calculator	This calculator will determine a bolt circle pattern and X Y coordinates as well as plot data. Bolt circle can be rotated as well.
Standard Deviation Equation and Calculator	This calculator will determine the Standard Deviation from a know set of measurements.
Engineering Tolerances	A Study of tolerance limits and fits for engineering purposes, with full tables of all recognized and published tolerance systems.
Shaft Tolerance Classifications for Metric Radial Ball and Roller Bearings	Shaft Tolerance Classifications for Metric Radial Ball and Roller Bearings of ABEC-1 and RBEC-1 Tolerance Classes ANSI/ABMA 7
Housing Hole Tolerance Classifications for Metric Radial Ball and Roller Bearings	Housing Hole Tolerance Classifications for Metric Radial Ball and Roller Bearings of ABEC-1 and RBEC-1 Tolerance Classes
Pipe and Compression Coupling Tolerance Analysis Equations and Calculators	This engineering design calculator and related formulas will determine the nominal, maximum and minimum coupling gap.
Stud Projection Tolerance Boundary Analysis Feature of Size Offset Equation and Calculator	Notes: Projection within block material is fixed, Diameter D1 is typically MMC size.
Tolerance Analysis Linear Offset Two Pins and Strap Equations and Calculator	This calculator determines the maximum separation at two pin/bolt locations with an intermediate strap securing together.
Gage Repeatability and Reproducibility Data Collection Excel Spreadsheet Calculator	This spreadsheet allows the user to perform a complete Gage Repeatability and Reproducibility (GR&R) study. Both Analysis of Variance and Xbar/Range calculations are performed. Up to three operators, ten parts and three trials can be accommodated. The GR&R is reported in terms of percent of study variation and percent of tolerance. The percentage of equipment variation, appraiser variation, part variation, and the number of distinct categories that can be distinguished are also displayed.

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