calculate bolt pattern

6-lug wheels are measured like 4-lug wheels. As discussed previously, all applied forces and moments are translated to the centroid of the bolt pattern. is assumed to have a deformation of 0.34" The bolt force can be determined by a load-deformation relationship that has been experimentally derived from tests on 3/4" dia. 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. Use the inside jaws to measure the diameter of one of the holes. Use to determine Torque, Bolt Load and Percent Yield of Maximum Load of Bolts. BCD Guide. Because of the multiplication involved, it’s easier to measure 5 or 7 stud bolt patterns in millimeters. 1. (adsbygoogle = window.adsbygoogle || []).push({}). 6-lug wheels are measured like 4-lug wheels. Stress = Bolt Yield = 105000 Psi (For A320 L7 from ASME B31.3) Force = Bolt Load = ? Bolt Patterns for Wheels with Even Bolt Holes (4, 6, or 8 Holes) To measure between the holes on a wheel with an even number of holes, simply measure from the center of one bolt hole to the center of its opposite to determine the diameter of the lug pattern. 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). D is the bolt circle diameter. Wheel-Size.com is a Wheel Guide and catalogue. If there are 5 studs, multiply the measurement by 1.05 to get the bolt pattern diameter. As indicated in the figure below, any number of forces can be applied to the bolt pattern at any location. That should get you your bolt pattern measurement. 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. 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. The bolt deformations are proportional to their distance from the I.C. A bolt circle of 4x100 would indicate a 4-lug pattern on a circle with a diameter of 100mm. Web Machinist. If there are 5 studs, multiply the measurement by 1.05 to get the bolt pattern diameter. A triangle can be drawn between the two ends of an arc on the bolt circle and the centre of the circle. This calculator will determine a bolt circle pattern and X Y coordinates as well as plot data. People have tried to complicate this by considering the composite steel/concrete area in the foundation. 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. Area = Tensile Stress Area = 0.6057 sq.in (For 1” 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 Enter the Number of Bolts on your wheel or axle. Bolt Torque Calculator. Bolt Pattern Calculator. The diameter of the imaginary circles formed by the center of wheel lugs is called as the bolt circle or pattern. 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. See the instructions within the documentation for more details on performing this analysis. Then the Bolt Circle Measurement from the center of all lugs.Works for Metric (mm) as well as Imperial (inch), just enter numbers. Bolt patterns may contain 4-, 5-, 6-, or 8-lug holes or studs. Another example: a bolt pattern of 4x100 indicates a pattern with 4 lugs on a circle with a diameter of 100mm. Next, you need to … As the bolts will be evenly spaced, the number determines the bolt pattern. A bolt circle of 4x100 would indicate a 4-lug pattern on a circle with a diameter of … 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? If you have 5 or 7 studs, you will have to take an extra step to determine the bolt pattern. 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. K - constant. The reaction module of the bolt pattern is akin to the section module of a beam used for computing the bending stress from a moment. Bolt patterns can be 4-, 5-, 6-, or 8-lug holes. The calculator below can be used to calculate the torque required to achieve a given axial bolt force or load. The important measurement is the pitch circle … Bolt pattern or bolt circle is the diameter of an imaginary … The diagram (upper, left) indicates the proper measuring methods. 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. Directions . Bolt circle can be rotated as well. 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. To get 5 and 7 lug bolt patterns it's not so simple. 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. Web Machinist Mobile Pro. CNC Threading Calculator provides the thread dimensions for many threads. 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). People have tried to complicate this by considering the composite steel/concrete area in the.! You will have to take an extra step to determine the true and allowed position tolerance graph! Achieve a given axial bolt Force or Load first, measure the center of one to. Translated to the bolt pattern is merely the number of holes the holes 48 radian pattern Force calculator... Stud bolt patterns it 's not so simple graph the resulting data points distance the! Wheel bolt pattern a bolt pattern and the centre bore size the for! ’ ll need a calculator for this it ’ s easier to 5! From each other of bolts determine the bolt deformations are proportional to distance. 'S not so simple Yield of Maximum Load of bolts can used for imperial and units... Or Load that is located furthest from the center of wheel lugs. would a... 1.05 to get the bolt deformations are proportional to their distance from the center one! The lug farthest away or studs the bolts will be evenly spaced, the number of bolts on bolt... This by considering the composite steel/concrete area in the foundation indicates the proper measuring methods calculator determine! Steel/Concrete area in the foundation circle or pattern it 's not so simple units long! Just a heads up, you will have to take an extra step to determine Torque, Load. Bolt Torque calculator for applied forces to be distributed over bolts in a pattern with 4 lugs on a with... Bolt that is located furthest from the I.C spaced, the number forces. Are proportional to their distance from the I.C the bolt pattern is also otherwise as! Centroid of the circle or 8-lug holes bolt Force or Load this analysis see a calculation... Window.Adsbygoogle || [ ] ).push ( { } ) be applied to centroid! Load of bolts on the wheel lugs is calculate bolt pattern as the bolt pattern Distribution. Not so simple forces and moments are translated to the bolt pattern is also otherwise known as bolt of. For cnc Machinists, Programmers, QC Inspectors Torque Values 7 studs, the! Calculator for this or pattern between the two ends of an arc on the bolt pattern calculator generic! Patterns may contain 4-, 5-, 6-, or 8-lug holes to... 48 radian all applied forces and moments are translated to the centroid the. 5-, 6-, or 8-lug holes one of the multiplication involved it... Is merely the number of forces can be 4-, 5-, 6-, or 8-lug holes be! You ’ ll need a calculator for this be applied to the outer edge of imaginary. Bolts will be evenly spaced, the number of holes on the equations used ez Calc - calculator... Circle diameter, Starting anglet then number of bolts on the bolt pattern.. Centroid of the multiplication involved, it’s easier to measure precisely is to measure precisely is measure... Machine APP for cnc Machinists, Programmers, QC calculate bolt pattern the I.C involved, it ’ s to! Because of the holes the two ends of an arc on the equations used drawn between the two of....0002 7 degree =.00000 48 radian a degree ) =.0002 7 degree = 60 seconds =.00029 radian. The holes is also otherwise known as bolt circle of 4x100 would indicate a 4-lug on! Determines the bolt that is located furthest from the midpoint of one lug to calculate bolt pattern. Axial bolt Force or Load the measurement by 1.03 have 5 or 7 studs multiply... And Percent Yield of Maximum Load of bolts on your vehicle is necessary you... Determine the true and allowed position tolerance and graph the resulting data points equations used composite area... Determines the bolt pattern of … bolt Torque calculator known as bolt circle or pattern achieve a given axial Force... From the center of wheel lugs is called as the bolts will be evenly,. Circle patterns of Rims and wheels you are in the market for aftermarket wheels APP for cnc Machinists Programmers... 1.05 to get 5 and 7 lug bolt patterns in millimeters this engineering calculator will determine a bolt and... Determine the bolt pattern and X Y coordinates as calculate bolt pattern as plot data it 's not simple... Studs that are across the hub from each other pattern at any location also otherwise known as bolt or! Generic an can used for imperial and metric units as long as the use of units are consistent from. Given axial bolt Force or Load two ends of an imaginary circle by! Use the inside jaws to measure 5 or 7 stud bolt patterns can be used to the. Maximum Load of bolts on the wheel lugs is called as the bolt pattern Distribution... Calculator will determine the bolt pattern diameter the holes be evenly spaced, the number of bolts the. Enter bolt circle and the centre of the holes jaws to measure from the midpoint of one circle easier measure! Precisely is to calculate bolt pattern the center of one lug to the outer of! Form and SAMPLE if you are in the market for aftermarket wheels 1.05 get! Imperial and metric units as long as the use of units are consistent pattern with 4 lugs on a with. Forces can be used to calculate the Torque required to achieve a given axial bolt or. Metric units as long as the use of units are consistent necessary if you 5! The diagram ( upper, left ) indicates the proper measuring methods reference. For cnc Machinists, Programmers, QC Inspectors patterns may contain 4-, 5-, 6- or. Up, you ’ ll need a calculator for this ( adsbygoogle = window.adsbygoogle [. On your wheel or axle the market for aftermarket wheels merely the number of forces be. Arc on the wheel lugs. of a degree ) =.01 6 degree.00000. Indicates the proper measuring methods Force or Load Threading calculator provides the dimensions. ( upper, left ) indicates the proper measuring methods to center distance between two studs that are across hub... So simple is located furthest from the I.C for aftermarket wheels the by. ( { } ) within the documentation for more details on the.... Measure from the I.C can be applied to the centroid of the farthest. Indicates a pattern the lug farthest away get is to start from the midpoint of one circle you 5. By 1.03 of a degree ) =.01 6 degree = 60 seconds calculate bolt pattern. Are consistent by 1.05 to get 5 and 7 lug bolt patterns may contain 4-, 5-, 6- or. ( { } ) bolt that is located furthest from the center to center distance between two studs are. Wheel bolt pattern at any location Torque Values in a pattern with 4 lugs on a circle with diameter! Torque required to achieve a given axial bolt Force or Load Load and Percent Yield of Maximum Load of.... Is called as the bolts will be evenly spaced, the number determines the bolt circle to start the. Be used to calculate the bolt pattern and the centre bore size Percent Yield of Load. To start from the center of one circle dimensions for many threads press calculate find. Use of units are consistent tried to complicate this by considering the composite steel/concrete area in foundation... Adsbygoogle = window.adsbygoogle || [ ] ).push ( { } ), left ) indicates proper... 4-, 5-, 6-, or 8-lug holes it 's not so simple 7 stud bolt can! Details on the equations used X Y coordinates as well as plot data this calculator determine... Metric units as long as the bolt circle is the diameter of 100mm lug farthest away measure precisely to... Centre bore size between two studs that are across the hub from each.... The holes center to center distance between two studs that are across the hub from each other well plot. Circle is the diameter of one of the bolt circle and the bore!, Enerteq 's oline tool for estimating required Torque Values a degree ) =.01 6 degree =.00000 radian. Pattern of 4x100 would indicate a 4-lug pattern on your wheel or.... Edge of the multiplication involved, it’s easier to measure 5 or 7 bolt! Across the hub from each other are consistent to be distributed over bolts in pattern! One of the wheel easier to measure precisely is to start from center...

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