Bolt Torque Calculator. 0°0'1" (1 second of a degree) = .0002 7 degree = .00000 48 radian. The bolt deformations are proportional to their distance from the I.C. The calculator below can be used to calculate the torque required to achieve a given axial bolt force or load. Measuring the wheel bolt pattern on your vehicle is necessary if you are in the market for aftermarket wheels. If there are 7 studs, multiply the measurement by 1.03. A325 bolts in double shear. D is the bolt circle diameter. The closest you can get is to measure from the center of one lug to the outer edge of the lug farthest away. If there are 5 studs, multiply the measurement by 1.05 to get the bolt pattern diameter. Threading Calculator. A triangle can be drawn between the two ends of an arc on the bolt circle and the centre of the circle. Web Machinist. To find your bolt pattern, measure the distance as accurately as possible and then find the corresponding bolt pattern in the ⦠Bolt patterns with an even number of lugs are measured from bolt center to bolt center while 5 lug bolt patterns are measured from the top of the upper lug to the center of the lower lug. Web Machinist Mobile Pro. Another example: a bolt pattern of 4x100 indicates a pattern with 4 lugs on a circle with a diameter of 100mm. We strive to help you get the information you need about PCD, offset, rims and all other wheel and tire data that you need for your vehicle. See the reference section for details on the equations used. As indicated in the figure below, any number of forces can be applied to the bolt pattern at any location. If there are 5 studs, multiply the measurement by 1.05 to get the bolt pattern diameter. A bolt circle of 4x100 would indicate a 4-lug pattern on a circle with a diameter of 100mm. The important measurement is the pitch circle ⦠First, measure the center to center distance between two studs that are across the hub from each other. Bolt Circle Calculator: Calculator Menu: Enter values below to calculate the coordinates of the holes in a bolt circle. Enter the Number of Bolts on your wheel or axle. Bolt Pattern Calculator. Bolt patterns can be 4-, 5-, 6-, or 8-lug holes. Enter Bolt Circle Diameter, Starting anglet then number of holes. The calculator is generic an can used for imperial and metric units as long as the use of units are consistent. If you have 5 or 7 studs, you will have to take an extra step to determine the bolt pattern. Angle entry field (Convert decimal angle to; degrees, minutes and seconds) Angle format example 1: decimal 15.5° enter as 15.5 no formating needed. A bolt circle of 4x100 would indicate a 4-lug pattern on a circle with a diameter of 100mm. Positional Tolerance Hole Pattern Calculator and Graph. To get 5 and 7 lug bolt patterns it's not so simple. Stress = Bolt Yield = 105000 Psi (For A320 L7 from ASME B31.3) Force = Bolt Load = ? This engineering calculator will determine the true and allowed position tolerance and graph the resulting data points. Select your vehicle to find the bolt pattern and the centre bore size. The diagram (upper, left) indicates the proper measuring methods. 6-lug wheels are measured like 4-lug wheels. As the picture shows, the bolt pattern on wheels with 4 lugs is quite easy to understand. Enter values below to calculate the diameter of a bolt circle. EZ Calc - Bolting Calculator, Enerteq's oline tool for estimating Required Torque Values. This online calculator is used to find the positions of the bolt circle pattern based on the number of holes, angle of 1st hole, diameter of 1st hole, offset, diameter of hole and bolt circle. K - constant. Area = Tensile Stress Area = 0.6057 sq.in (For 1â bolt from ASME PCC-1) Force (Bolt Load) = 105000 X 0.6057 = 63598.5 lb Kindly confirm if this can be used to calculate bolt load before using T=KFD to calculate the torque value And, assuming this total force is divided amongst N bolt, the load per bolt is 2M/(RN) +/- P/N or 4M/(ND) +/- P/N There may be more elegant ways to show that, but it's still based on the Mc/I +/- P/A. Namely, 4 lugs wheels have four holes that are symmetrical, therefore, measuring the bolt pattern is not a hard thing to do. Directions . (adsbygoogle = window.adsbygoogle || []).push({}). Bolt pattern is also otherwise known as bolt circle. The diameter of the imaginary circles formed by the center of wheel lugs is called as the bolt circle or pattern. Press CALCULATE to find other values.Hit RESET to clear the form and SAMPLE if you want to see a sample calculation. The bolt pattern consists of two numbers and looks like this (5×4.50) â the first number in this example â5â indicates how many bolt holes or studs are on the vehicle, the other number â4.50â describes the diameter of the circle formed by those â5â holes or studs in either inch or millimeter units (4.50 is inches). Bolt patterns may contain 4-, 5-, 6-, or 8-lug holes or studs. The Mobile Machine APP for CNC Machinists, Programmers, QC Inspectors. The term âbolt patternâ refers to the number of bolt holes and the diameter of the circle that they form on your wheels. Bolt circle can be rotated as well. When you need to update or replace the wheels on your vehicle or trailer, having an accurate bolt pattern measurement is key to finding wheels that fit correctly. The forces at the centroid are calculated as the sum of all applied forces: The moments at the centroid are calculated as the sum of all applied moments, plus the sum of the cross product of ⦠"Bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs." When searching for aftermarket wheels, you'll find that the wheel bolt patterns are listed, for you to determine which wheels will fit your vehicle. The equation for the BCD for any symmetric bolt pattern is given by: BCD = d / sin(180/n) where d is the center to center distance between adjacent bolts, n is the number of bolts, and the angle is in degrees. For example, â5/114,3â³ or "5*114,3", where number "5" describes the number of holes and "114,3" is the pitch circle diameter, easy huh? Measure the center to center distance between two studs directly ⦠Tolerances, Engineering Design & Limits & Fits . If you would like to determine the bolt pattern of your car or a set of rims, the first thing you need to do is count the number of studs. It is defined as the diameter of an imaginary circle formed by the centres of the wheel lugs which can be calculated using an online bolt pattern calculator. Bolt pattern or bolt circle is the diameter of an imaginary ⦠Vernier caliper set on 25.4 mm ⦠The diagram indicates the proper measuring methods. BCD Guide. Use the inside jaws to measure the diameter of one of the holes. If we can find the radius R of the bolt circle, then this gives us the diameter D. We calculated that: θ = 360 / N. Also A is the spacing between holes. The world's largest wheel fitment database. If you need the 4, 6 or 9 Lug page look here How to measure 4, 6 or 8 lug wheel bolt pattern If you want a more accurate approach check out the Wheel Bolt Circle Calculators NEW Downloads - SAVE FILE DO NOT PRINT FROM BROWSER Pocket Guide to print a handy Ruler to ⦠Use data of Wheel-Size.com at your website. Wheel fitment and tire size guide and knowledge base, Information guide to help before purchasing alloy wheels, Find out what tire size will fit on your Vehicle, Find matching vehicles by specific Bolt Pattern, Find matching vehicles by specific Tire Size. This guide is accurate and is updated on a daily basis.No warranties or guarantees are expressed or implied as to the accuracy of the information provided on this site.Use of this site implies your agreement to these terms. 0°1' (1 minute of a degree) = .01 6 degree = 60 seconds = .00029 8 radian. To get a 4, 6 or 8 lug bolt pattern use a device to measure from the center of one lug to the center of the lug directly accross from it. Number of Holes N Center Distance Between Adjacent Holes C in mm Tip: To measure the center distance between two holes of equal diameter with an electronic caliper. For example, a bolt pattern in metric, let's say 5x114.3, is equal to 5x4.5 in inches, because 114.3 divided with 25.4 = 4.5, easy, don't you agree? The bolt pattern is merely the number of bolts on the wheel. The bolt pattern describes how many bolts or lug nuts that are used for fitting a wheel, and of course what the pitch circle diameter / PCD is (bolt circle diameter). Use to determine Torque, Bolt Load and Percent Yield of Maximum Load of Bolts. In the same way we may calculate the following bolt pattern in inches, 5x5, to metric, which will be 5 times 25.4 = 127 (bolt pattern = 5x127). If there are 4,6 or 8 studs, simply measure the center to center distance between two studs that are across the hub from each other. See the instructions within the documentation for more details on performing this analysis. CNC Threading Calculator provides the thread dimensions for many threads. 6-lug wheels are measured like 4-lug wheels. The bolt pattern consists of two numbers and looks like this (5x4.50) - the first number in this example "5" indicates how many bolt holes or studs are on the vehicle, the other number "4.50" describes the diameter of the circle formed by those "5" holes or studs in either inch or millimeter units (4.50 is inches). As the bolts will be evenly spaced, the number determines the bolt pattern. Web Machinist. This calculator will determine a bolt circle pattern and X Y coordinates as well as plot data. The bolt circle is the circle determined by the positions of the bolts; the center of every bolt lies on the circumference of the bolt circle. 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