f 1. thread friction factor between the nut and the bolt . Learn more about our eye bolts including eye bolt capacity and eye bolt sizes. Bolt torque calculator metric (vdi 2230) Bolt torque calculator metric. Use eye bolts at a horizontal angle greater than 45°. Always tighten nuts securely against the load. About this Calculator What is it for? Learn more about our eye bolts including eye bolt capacity and eye bolt sizes. Some important notes from the ASME B18.15: Lifting capacity per eye bolt, with bolt fitted at sides of load, ≤ 45° Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH,Burggrafenstraße 6, 10787 Berlin, Germany. The swivel hoist ring will adjust to any sling angle by rotating around the bolt … Always apply load to eye bolt in the plane of the eye. Regular eye bolt is a non-shouldered eye bolt with a nut, it is designed to be inserted through a hole and secured on the backside with the provided nut. In the table, As has been taken as equal to At . 2)For stripper bolts and others which are subjected to tensile impact loads, the selection is made based on the fatigue strength. Identify the components and describe the characteristics of wire rope and synthetic slings. Click here to register now! Thread Diameter. White zinc-plated lifting eye bolts and lifting eye nuts (minimum 8 microns) and hot-dip galvanised lifting eye bolts and lifting eye nuts (minimum 78 microns) are also ready for immediate delivery. The following procedure describes how to verify the strength of the lifting eye Design load (P) = Safe Working Load (SWL) x Dynamic coefficient (Dynamic coefficient is taken as 1.3. recommended by Classification society rules) Allowable stress Never use regular nut eye bolts for angular lifts. Lag eye screw is also known as lag screw eye bolt, which is a kind of eye bolts for wood, they are designed for screwing into the thimbles. SURFACE FINISHES . Explain the proper use and limitations of the various rigging equipment and hardware (wire rope, synthetic web slings, shackles, eyebolts, hooks, etc.). Non-machined lifting eye bolts and lifting eye nuts are usually supplied as semi-finished forged pieces (sand-blasted). Recommended for straight line pull. Assure a plane bolting surface. The hexagon VRS High Capacity Eye bolts can be adjusted to the direction of pull. 2. For angular lifts, adjust working load as shown above. These simple devices are one of the most important inventions of the mechanical age. The bolt weight calculator is a derived application or tool to assist the customers in knowing the bolt weight. We provide it as a resource for our customers, because the weight of a bolt or assembly is often needed when calculating shipping costs, or jobsite delivery requirements. Use eye bolts at a horizontal angle greater than 45°. Eye Bolt loss of strength based on angle used chart. The bolt cross sectional area is critical to the prior calculation. Thickness of spacers must exceed this distance between the bottom of the load and the last thread of the eye bolt. Any movement restrictions? Ensure the eye bolt is bolted down flush to the surface! We can offer long shank collared eye bolt, and machinery eye bolt, called shoulder pattern machinery eye bolt, features a shoulder with shank, fully threaded shank but without a secured nut. The 12.9 bolt is a higher tensile bolt made from alloy steel that is quenched and tempered. Eye Bolt Capacity. Most accurate bolt torque calculator given its geometry and thread diameter, using vdi 2230 standard, Screw Clearance through the specific tool 3D model. Never use regular nut eye bolts for angular lifts. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. How to calculate eye bolt capacity? Nuts and bolts are the glue that hold together our mechanical contraptions. Eye Bolt Installation and Maintenance. They are commonly used at high stress points in … Shoulder Nut Eye Bolt ---Installation for Angular Loading. d min. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity… Please see the eye bolt size chart as per your need from our eye bolt and nut catalog. Forged Eye Bolt Capacity and Strength Chart to show rated load capacities, proof load and breaking strength of a selected forged threaded eye bolt. (The bolt is subjected to 200 kgf loads in the same way. 5. Non-machined lifting eye bolts and lifting eye nuts are usually supplied as semi-finished forged pieces (sand-blasted). Furnished with standard Hot Dip galvanized hex nuts. mean bolt diameter . Unlike DIN 580 lifting eye bolts , the GN 581.5 lifting ring bolt is captively mounted in the ring housing, yet rotates freely. See the instructions within the documentation for more details on performing this analysis. p A. allowable thread pressure (nut) E 1. elasticity module of bolt . Always tighten nuts securely against the load. Eye Bolts should be screwed fully down to the face of the lifted load; however, excessive tightening of the Eye Bolt should be avoided. Bolt Down Lifting and Lashing points are available in various designs such as Eye nuts, Eye bolts, Excavator Hooks, Swivel Hoist Hooks, Load Rings, Swivel Load Rings and Hoisting Rings.. A Bolt down lifting point may be the solution to your lifting needs and if it is then we will either have the correct model or we can inform/supply the correct lifting device to suit your hoisting application. Always be sure threads on shank and receiving holes are clean. They are designed to create a lifting eye through rope, cable, or shackles that can be secured for their safe working load. The shear capacity of the bolt is given by . Click here for more information. The weight of a bolt depends on the type of the bolt, material grade, length, diameter and the head type with how many nuts are there on the bolt. The chart is according to ASME B18.15 and ASTM A 489 - 04 standards. 30 degrees makes for 65% of the original rated capacity. See the instructions within the documentation for more details on performing this analysis. Also, available to rotate 180°against the lifting direction. The image below shows markings and specifications that are common across all types of eye bolts. Connection Calculator Provides users with a web-based approach to calculating capacities for single bolts, nails, lag screws and wood screws per the 2015 NDS . The third factor to consider when selecting the correct eye bolt for a lift is to take … • Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles. For angular lifts, adjust working load as shown above. All ships have lifting eye provided for lifting motors, their parts, and other equipments. Is there any guidance on how to calculate shear and tensile capacities for bolts in tapped holes? Lift eye bolts are rated for vertical lifting up to their specified capacity. An over-torqued bolt that is stretched beyond its elastic limit is severely weakened, diminishing its effective load capacity. Use steel washers to fill the space of the unthreaded part of the shank, but the thickness of the steel washer must not exceed one thread pitch. The following procedure describes how to verify the strength of the lifting eye Design load (P) = Safe Working Load (SWL) x Dynamic coefficient (Dynamic coefficient is taken as 1.3. recommended by Classification society rules) Allowable stress To learn more call us directly at 800-431-4350 today. Sling strength at 45° is 71% of vertical sling capacity. The area of bolt available for use by a shear plane will depend on whether or not the shear plane is in a region of the bolt that is threaded. - Bolts can fail in shear or in tension. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity. Description: GN 581.5 swivel lifting eye bolts offer a high load carrying capacity and are tested to meet high safety standards. The load capacity is marked on the Hoist Ring. So it is important not to exceed eye bolt capacity, which refers to the load a single eye bolt can lift when the load is applied through the shank of the eye bolt vertically. All ships have lifting eye provided for lifting motors, their parts, and other equipments. title: technical collared eyebolt working load chart keywords: technical collared eyebolt working load chart created date: 20140530113853z Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity… ・Can safely use Swivel Lifting Eye Bolt even when the lifting work from side direction, beveled direction or under tensile condition which are dangerous with the conventional eye bolt … Newsletter Archive; Categories. • When more than one eye bolt is used to lift an evenly distributed load the capacity is reduced on each eye bolt, based on the angle of the load. – Wire Rope Basics For You, How To Install A Wire Rope Ferrule & End Stop(Infographic). The best way to understand eye bolt is from the eye bolt sizes, it should be taken from directly underneath the eye, for there are different types in the lengths of the shank. 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