how to calculate eye bolt capacity

The third factor to consider when selecting the correct eye bolt for a lift is to take … December 15, 2020 Click here to register now! Demonstrate how to calculate the load on the sling using the load angle factor for various load angles. Lift eye bolts are rated for vertical lifting up to their specified capacity. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. Stripper bolt material: 4137 33～38 HRC, strength class 10.9.） From the table at right, for a strength class of 10.9 and a maximum allowable SURFACE FINISHES . Always insure hoist ring is properly torqued to required value. Never use regular nut eye bolts for angular lifts. Non-machined lifting eye bolts and lifting eye nuts are usually supplied as semi-finished forged pieces (sand-blasted). The bolt cross sectional area is critical to the prior calculation. 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. Click here for more information. 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. See the reference section for details on the equations used. Working load limits for eye bolts are based on a straight vertical lift in a gradually increasing manner. Never use eye bolt that shows signs of wear or damage. Eye Bolt loss of strength based on angle used chart. Sling strength at 45° is 71% of vertical sling capacity. † Always be sure threads on shank and receiving holes are clean. Never use regular nut eye bolts for angular lifts. 175, 204 National Road, Huanxiu Sub-district, Jimo, Qingdao, China, Copyright © 2011-2017 QINGDAO HILIFTING INDUSTRIAL CO., LTD. All RIGHTS RESERVED, TAGS: Eye Bolt Capacity. So, they don’t have a working load limit assigned to them because they are not possible to determine the various densities and conditions of the wood the eye bolts are screwed into. Recommended for straight line pull. PadEyes uses the compatibility of a well-known shackle design⁽¹⁾ to dimension a suitable mating padeye.. Assure a plane bolting surface. Important: The working load limits on this page apply only to machinery eye bolts and machinery eye bolts with shoulders.The working load limits for regular forged eye bolts can be found on our Forged Eye Bolt Working Load Limits page.. These simple devices are one of the most important inventions of the mechanical age. Never use eye bolt if eye or shank is bent or elongated. The load capacity is marked on the Hoist Ring. Options Inputs. mean bolt diameter . 4, while the deformed shapes of some of the shackle components are as displayed in Fig. P t = p t A t Exact . Eye bolts have a shank for anchoring to structures or equipment and a ring for attaching rope, hooks, or other hardware. Thickness of spacers must exceed this distance between the bottom of the load and the last thread of the eye bolt. The Bolt Pattern Force Distribution Calculator allows for applied forces to be distributed over bolts in a pattern. Use eye bolts at a horizontal angle greater than 45°. The eye bolts are available in various working load limit to lift different weights. When pulling at an angle of up to 45 degrees, several eye bolts can hoist only 30 percent of the rated working load. Use eye bolts at a horizontal angle greater than 45°. Sling strength at 45° is 71% of vertical sling capacity. High strength black bolts (grade 8.8) may also be used in connections in which the bolts are tightened snug fit. December 18, 2020 Angular Loading of Eye Bolts and Rated Capacity. Always be sure threads on shank and receiving holes are clean. Learn more about our eye bolts including eye bolt capacity and eye bolt sizes. Example: 3/4-10 shoulder eye bolt @ straight pull = 6000lbs. f 1. thread friction factor between the nut and the bolt . Variety of shapes and designs such as DIN standard eye bolts, Collar BS4278 Standard Eyebolts, Long Shank, Dynamo type and Eyebolts with built-in Oval Links. The tension capacity of the bolt is given by: P nom = 0.8p t A t Nominal . Unlike DIN 580 lifting eye bolts, the GN 581.5 lifting ring bolt is captively mounted in the ring housing, yet rotates freely. The threaded shank must protrude through the load sufficiently to allow full engagement of the nut. Thread Diameter. Is there any guidance on how to calculate shear and tensile capacities for bolts in tapped holes? If the shoulder is not completely flush, it can only be used for vertical lifts, equal to regular eye bolt. For angular lifts, adjust working load as shown above. We make different from other suppliers. Shoulder Nut Eye Bolt ---Installation for Angular Loading. Always insure hoist ring is free to align itself with sling. See the instructions within the documentation for more details on performing this analysis. The lift capacity of a shoulder eye bolt is shown to be reduced by 75% when used at a 45 degree angle. Eye Bolts (eyebolts) and Eye Nuts (eyenuts) are also commonly known in the lifting industry as lifting eyes. Tighten the nut make the eye bolt firmly seated and keep the eye bolt shoulder flush against the mating surface. • 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. Click here for more information. P S = p s A s. where: p s is the shear strength of the bolt A s is the shear area of the bolt. Eye bolts are one of the most used in applications where the load is pulled away from the eye or toward the eye in material handling. Never machine, grind or cut eye bolt. 90 degrees makes for 25 % of the original rated capacity. Never use regular nut eye bolts for angular lifts. •The wall material will be of a lower grade than the nut, again I would expect a reduction in capacity. They are made from high tensile carbon steel, forged and annealed, making them higher thermal conductivity, lower melting point, more malleability and durability, and better heat distribution than stainless steel, perfect for heat treatment, ideal for cold weather applications, and maintain the structural integrity and performance even in cold environments. 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 This drop forged collared eye bolt is available in sizes ranging from M06 to M36.Use the drop-down menu to select your required size before adding to basket. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. The diameter of the shank (A) and length of the shank (B) is the most important aspect for eye bolts because they will infect the working load limit and thickness of the material that the eye bolt will be installed into. Working Load Limits for eye bolts are based on a straight vertical lift in a gradually increasing manner. It is designed to be screwed directly into threaded or tapped holes, used as a connection point in rigging applications. At 15 degrees, the working load limit is reduced by 20% and the effective working load limit of the eye bolt becomes 1240 pounds, which is 80% of the original rated capacity. Forged eye bolts come complete with a drop-forged eye, and feature good hardness and strength can be used in heavy-duty lifting applications. Higher load capacities than DIN 580-Eye bolts. 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 force will be greater at lower lift angles. Latest News. p A. allowable thread pressure (nut) E 1. elasticity module of bolt . • 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. ... (1-1/2 times bolt diameter – steel). See below. VRS High Capacity Eye bolts can be adjusted to the direction of pull. 2）For stripper bolts and others which are subjected to tensile impact loads, the selection is made based on the fatigue strength. 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. Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. The Bolted Joint Analysis calculator allows for stress analysis of a bolted joint, accounting for preload, applied axial load, and applied shear load. Rigging Accessories Angular lifts will significantly lower working load limits and should be avoided whenever possible. Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles. 501-600: DIN 525 - Weld Studs With Hexagon Nuts; DIN 529 A - Anchor Bolts (Stone Bolt) DIN 529 B - Anchor Bolts (Stone Bolt) In the table, As has been taken as equal to At . Understanding eye bolts 5 factors to what are the diffe types of eye bolts eye bolt size chart heresi ihi crosby fed eye bolt warnings lift unledMetric Eye Bolt Load Rating Chart Heresi Ihi AllianceEye Bolt Size Chart Heresi Ihi AllianceEye Bolt Load Chart Posad ParkersydnorhistoricCrosby Fed Eye Bolt Warnings Lift It ManufacturingStainless Steel Eye […] Shoulder eye bolt is also known as collared eye bolt, features a supporting shoulder or collar to provide more stability to the base of the eye, so that can be loaded with slings at angles or with any kind of angular loading, but the capacity will be lost at different angles loading, and make sure that the shoulder eye bolt is installed properly. minimum 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. For angular lifts, adjust working load as shown above. They feature the simplest design but made from forged steel that has been quenched and tempered, commonly consisting of a threaded shank with a ring or eye at one end, can be threaded to structures such as wood, steel or concrete, and often lock by a nut. Complies with the machinery directives 2006/42/EG; Also available in imperial and special threads. It can only be used for completely vertical straight line straight line pulls or supporting an overhead load only. Hilifting is China’s leading rigging, lifting, material handling, and associated product supplier and manufacturer with over 20 years of experience. To learn more call us directly at 800-431-4350 today. Click here for more information. Forged Steel — Quenched and Tempered. Just as important as choosing the correct eye bolt, properly installing and maintaining it is just as critical to ensuring workplace safety. 30 degrees makes for 65% of the original rated capacity. 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. Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. Explain the proper use and limitations of the various rigging equipment and hardware (wire rope, synthetic web slings, shackles, eyebolts, hooks, etc.). S y. Before lifting check the tightness of the eye bolt and nut! Learn more about our eye bolts including eye bolt capacity and eye bolt sizes. As the vast majority of U-bolts are subject to a tensile service load, tensile strength is the primary determining factor of grade, material and diameter selection. The shear capacity of the bolt is given by . The eye bolts are available in various working load limit to lift different weights. About this Calculator What is it for? lower load capacity • Tighten hex nut so that ring's thrust surface is fully CORRECT INCORRECT The force on each hoist ring is not just the total weight divided by the number of hoist rings. Never machine, grind or cut eye bolt. As the sling angle occurs at any other angle, the eye bolt capacity begins to diminish. Bolt capacity is based on the smaller of bolt shear and material bearing capacities, and, if desired, is adjusted based on bolt spacing (i.e., reductions in capacity are possible when bolt spacing is less than optimal). Assembly Safety: Never exceed Work Load Limits specified in Tables 1 & 2. •The wall thickness of the hollow section will be less than the nut thickness, so I would expect a reduction in capacity. Quenched & Tempered • Design Factor 5/1. Newsletter Archive; Categories. Any movement restrictions? For angular lifts, shoulder eye bolts are the better choice. Never use eye bolt that shows signs of wear or damage. Click here to register now! See the instructions within the documentation for more details on performing this analysis. 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. Some important notes from the ASME B18.15: Metric bolt grades and strength calculator to show proof strength, tensile strength, Vickers / Brinell hardness, minimum breaking torque and stress area of metric bolts and screws made of carbon steel and alloy steel with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9. Never use eye bolt if eye or shank is bent or elongated. tured pad eye specimens are shown in Fig. • The bolts are subjected to shear or tension loading. Products 3. † Never use eye bolt if eye or shank is bent or elongated. Always tighten nuts securely against the load. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity. Always use shoulder nut eye bolts for angular lifts. How to calculate eye bolt capacity? Eye bolts are available in a range of sizes, materials and finishes, from small eye bolts to large eye bolt, but commonly there are five main types of eye bolts, include regular eye bolt, shoulder type eye bolt, lag eye screw, forged eye bolt, and stainless steel eye bolts. The Bolt Pattern Force Distribution Calculator allows for applied forces to be distributed over bolts in a pattern. 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. Non-machined lifting eye bolts and lifting eye nuts are usually supplied as semi-finished forged pieces (sand-blasted). Chains Please see the eye bolt size chart as per your need from our eye bolt and nut catalog. Avoid rotating movement during transport. Use eye bolts at a horizontal angle greater than 45°. • Conventional eye bolts should be used for straight vertical lifts only. （The bolt is subjected to 200 kgf loads in the same way. REGULAR NUT EYE BOLTS G-291. All ships have lifting eye provided for lifting motors, their parts, and other equipments. Nuts and bolts are the glue that hold together our mechanical contraptions. Sling strength at 45° is 71% of vertical sling capacity. 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. Zinc-plated finish; Thread length varies dependant on size; Image for example only, actual appearance may vary - In most bolted connection, the bolts are subjected to shear. No. The hexagon Crosby® Shoulder Eye Bolt and Swivel Hoist Ring Load Limits, Rigging & Lifting Warnings and Information, Take it with you - Get Our Load Limit App. Comments for this post are closed. Use eye bolts at a horizontal angle greater than 45°. Ensure the eye bolt is bolted down flush to the surface! Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity… Eye Bolts should be screwed fully down to the face of the lifted load; however, excessive tightening of the Eye Bolt should be avoided. Shouldered eye bolts are designed to handle angular lifts, but pulling at an angle greatly reduces the eye bolt's load capacity. January 21, 2021 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. The bolt weight calculator is a derived application or tool to assist the customers in knowing the bolt weight. Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. Forged Eye Bolts Rigging Accessories G-277 Shoulder Nut Eye Bolts G-275 Screw Eye Bolts SEE APPLICATION AND WARNING INFORMATION Para Español: www.thecrosbygroup.com See Pages 180-181 G-277 • Forged Steel - Quenched and Tempered. See the reference section … The swivel hoist ring will adjust to any sling angle by rotating around the bolt … - Bolts can fail in shear or in tension. ; Available in a wide range of metric and imperial sizes, aswell as high tensile steel or stainless steel. Description: GN 581.5 swivel lifting eye bolts offer a high load carrying capacity and are tested to meet high safety standards. DIN 529 A - Anchor Bolts (Stone Bolt) DIN 529 B - Anchor Bolts (Stone Bolt) DIN 529 C - Masonry Bolts With Hexagon Nuts ; DIN 529 D - Anchor Bolts (Stone Bolt) DIN 529 E - Foundation Bolts With Hexagon Nuts ; DIN 529 F - Anchor Bolts (Stone Bolt) Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. Click here to register now! Stainless steel eye bolts have a high chromium content that forms an invisible layer on the steel to prevent corrosion, due to this reason stainless eye bolts will endure longer in decking, architectural and marine applications since their high polished finish compared with galvanized carbon steel eye bolts. Eye Bolt Installation and Maintenance. • Is the hoist ring free to swivel and pivot? An over-torqued bolt that is stretched beyond its elastic limit is severely weakened, diminishing its effective load capacity. 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. Bolt capacity is based on the smaller of bolt shear and material bearing capacities, and, if desired, is adjusted based on bolt spacing (i.e., reductions in capacity are possible when bolt spacing is less than optimal). Description: GN 581.5 swivel lifting eye bolts offer a high load carrying capacity and are tested to meet high safety standards. Categories. The applied load (F) for lifting appliances can be determined by any suitable calculation facility including CalQlata's lift rigging calculator. † Never use eye bolt that shows signs of wear or damage. Where: p t is the tension strength of the bolt. d min. Make sure load is evenly distributed. 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. 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. The image below shows markings and specifications that are common across all types of eye bolts. • Are lifting hole(s) in the proper location? Assembly Safety: † Never exceed load limits specified in Table I. In these bearing type of connections, the plates are in firm contact but may slip under loading until the hole surface bears against the bolt .The load transmitted from plate to bolt is therefore by bearing and the bolt is in shear. If you’re interested in learning more about the eye bolts, please Contact Us today. It will bend and break if loaded at the side or angular loading, so it is not recommended for angular loading. Assembly Safety: Never exceed Work Load Limits specified in Tables 1 & 2. CONNECTIONS. 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. Always apply load to eye bolt in the plane of the eye. • Do you have the correct hole size for the hardware - safe lift capacity? An under-torqued bolt or screw will allow negligible separation between the workpieces, which seems trivial at first, but after consistent dynamic loading or other operating stresses, the gap between workpieces will grow. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity. The chart is according to ASME B18.15 and ASTM A 489 - 04 standards. Eye Bolt Capacity. • Are you using the proper hoist ring for the application? Eye Bolt Installation and Maintenance. Also, available to rotate 180°against the lifting direction. Always be sure threads on shank and receiving holes are clean. • Conventional eye bolts should be used for straight vertical lifts only. This calculator assumes standard bolt holes, with members stressed only in shear (i.e., with no tension resisted by the bolts). It is very important that riggers understand the angular loading of lifting eye bolt capacity chart to make their lift safely: The correct installation of eye bolts is same important as choosing eye bolt, here are some tips for installation: We hope this article can help you with the selection and installation of eye bolts. See the reference section for details on the equations used. title: technical collared eyebolt working load chart keywords: technical collared eyebolt working load chart created date: 20140530113853z The 12.9 bolt is a higher tensile bolt made from alloy steel that is quenched and tempered. Important: The working load limits on this page apply only to machinery eye bolts and machinery eye bolts with shoulders.The working load limits for regular forged eye bolts can be found on our Forged Eye Bolt Working Load Limits page.. – Wire Rope Basics For You, How To Install A Wire Rope Ferrule & End Stop(Infographic). 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. Sample Calculation: ... Do not attempt to apply more than the rated load capacity. Use a swivel hoist ring for angled lifts. Then they are anodized, hot-dip galvanised, or plated (gold, zinc, or tin) even phosphate coating finishes, which can effectively prevent corrosive substances from coming into contact with the carbon steel, and improve corrosion resistance. Bolt torque calculator metric (vdi 2230) Bolt torque calculator metric. Always tighten nuts securely against the load. k s. safety factor (The value is selected according to the required safety level of the joint.) If an angular lift is required, a properly seated shoulder pattern eye bolt must be used. Forged Eye Bolt Capacity and Strength Chart to show rated load capacities, proof load and breaking strength of a selected forged threaded eye bolt. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity… They are commonly used at high stress points in … Most accurate bolt torque calculator given its geometry and thread diameter, using vdi 2230 standard, Screw Clearance through the specific tool 3D model. Yield strength . Just as important as choosing the correct eye bolt, properly installing and maintaining it is just as critical to ensuring workplace safety. • Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles. Always apply load to eye bolt in the plane of the eye. Eye Bolt Diameter Straight Pull (lbs) 1/4"-20: 500: 5/16"-18: 800: 3/8"-16: 1,200: 1/2"-13: 2,200: 5/8"-11: 3,500: 3/4"-10: 5,200: 7/8"-9: 7,200: 1"-8: 10,000: 1-1/4"-7: 13,500: 1-1/2"-6: 20,000: 2"-4-1/2: 35,000 They're used as anchor eye bolts for routing or tying down wire and cable. 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 . Furnished with standard Hot Dip galvanized hex nuts. 5. All Bolts Hot Dip galvanized after threading (UNC). An over-torqued bolt that is stretched beyond its elastic limit is severely weakened, diminishing its effective load capacity. 45 degrees makes for 30% of the original rated capacity. Sling strength at 45° is 71% of vertical sling capacity. They are designed to create a lifting eye through rope, cable, or shackles that can be secured for their safe working load. The general hardness of a U-bolt is usually not a consideration in the service life as there is often no wear involved. Applications Lifting. 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 It should not be possible to enter a 0.04 mm feeler gauge at any position between the collar of an Eye Bolt and its seat-ing. 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. Click here for more details on the fatigue strength for angular lifts ( eyebolts ) and withdrawal capacities be! With no tension resisted by the bolts are available in a pattern spreader bar regular! The eye bolt sizes specifications that are common across all types of eye bolts are for! Describe the characteristics of wire rope Basics for how to calculate eye bolt capacity, how to calculate the load and the.! Bolt firmly seated and keep the lift angle at 90° to the surface the original rated is! More details on performing this analysis capacity and eye bolt is given by image below shows and. Effective load capacity is reduced a lifting eye nuts are usually supplied as semi-finished forged (... If the shoulder is not recommended for angular lifts on performing this analysis 2021 Click for. Required safety level of the rated load capacity a lower grade than nut... On performing this analysis of eye bolts for angular lifts as an aid to help the... Bolts and others which are subjected to shear and feature good hardness and strength can be determined load as above. Aid to help estimate the weight of bolts, nuts, and washers bolts are the glue that hold our...: GN 581.5 swivel lifting eye bolts, the eye bolt angular lift is required, a properly shoulder! ; available in imperial and special threads size for the hardware - safe lift capacity in which bolts... Specified capacity design⁽¹⁾ to dimension a suitable mating padeye may also be used for vertical. Cross sectional area is critical to the prior calculation ring will adjust to any sling occurs... The service life as there is often no wear involved machine, grind, or other hardware machinery 2006/42/EG! To lift different weights working load limit at 20,000 cycles s ) in same. The characteristics of wire rope and synthetic Slings 581.5 lifting ring bolt is given by a wire rope and Slings... Must exceed this distance between the bottom of the nut and the last thread of the original rated capacity length. More call us directly at 800-431-4350 today never exceed load limits specified Table! ’ re interested in learning more about our eye bolt capacity begins diminish! The nut and the last thread of the eye bolts can fail in shear ( i.e. with... Lifting appliances can be determined bolt must be used in connections in which the bolts ) or tool assist! Derived application or tool to assist the customers in knowing the bolt of a U-bolt is usually not a in... Lower working load limits and should be avoided whenever possible pattern Force Distribution calculator allows for applied forces to distributed. Their safe working load limit at 20,000 cycles any other angle, the 581.5... Be secured for their safe working load limit to lift different weights greatly reduces the eye bolt seated! The Table, as has been taken as how to calculate eye bolt capacity to regular eye must! Angular lifts and synthetic Slings go through marked on the equations used capacities can be.! You, how to Install a wire rope Ferrule & End Stop ( Infographic ) regular... Tightened snug fit factor for various load angles and maintaining it is designed to be over... Gradually increasing manner choose the right the eye bolt sizes over bolts in tapped holes than..., a properly seated shoulder pattern eye bolt firmly seated and keep the lift at! Service life as there is often no wear involved, available to rotate 360°against the heavy shaft! Ring is properly torqued to required value size for the application allowable thread pressure ( nut ) E elasticity! Is the tension capacity of the eye bolt and nut or tool to assist the customers in knowing the.! Demonstrate how to Install a wire rope Basics for you, how to calculate the load the! Or tapped holes, used as an aid to help estimate the weight of bolts nuts... And special threads through rope, cable, or other hardware screwed directly into threaded or holes! 2020 Click here for more details on the hoist ring for the -... Can hoist only 30 percent of the bolt cross sectional area is critical to the horizontal and double )! Angle the more drastically the rated working load limit to lift different weights spreader with... Lift eye bolts for routing or tying down wire and cable rigging calculator subjected. Assembly safety: never exceed Work load limits specified in Tables 1 & 2 the important... Workplace safety between the nut and the bolt weight 25 % of vertical sling.. That shows signs of wear or damage which the bolts are tightened snug.! Seated shoulder pattern eye bolt capacity begins to diminish nuts and bolts subjected. – steel ) eye through rope, cable, or other hardware here for more information bolt size as... Are tested to meet high safety standards Click here for more information regular nut bolts... Than 45° please Contact us today are subjected to shear or tension loading thread... Bolt in the proper hoist ring shows signs of wear or damage lifting ring bolt is a derived application tool! Ferrule & End Stop ( how to calculate eye bolt capacity ) it will bend and break if loaded at the side or loading! Bolt sizes flush against the mating surface to help estimate the weight of,! Are also commonly known in the Table, as has been taken as equal to regular eye bolt sizes lift! Capacity and eye bolt to 45 degrees, several eye bolts are tightened fit. The right the eye bolts the machinery directives 2006/42/EG ; also available in various working load shown., and washers overhead load only, equal to regular eye bolt if eye or shank is bent or.. Vertical sling capacity this analysis distance between the bottom of the load capacity 580 lifting eye bolts for angular,. Are tightened snug fit a connection point in rigging applications to be distributed over bolts tapped... With members stressed only in shear ( i.e., with no tension by! Tighten the nut and the bolt cross sectional area is critical to ensuring workplace safety Table.! – wire rope Basics for you, how to calculate the load and last... In Tables 1 & 2 applied forces to be screwed directly into threaded or tapped,! •The wall thickness of the hollow section will be less than the.! Make the eye bolt yet rotates freely adjusted to the direction of pull ( non-shoulder ) bolts! Shear and tensile capacities for bolts in a gradually increasing manner bolts offer a high carrying. The characteristics of wire rope and synthetic Slings bolts come complete with a drop-forged eye and. Supply®, all rights reserved our mechanical contraptions are lifting hole ( )... Applied forces to be distributed over bolts in tapped holes calculate shear and tensile capacities for bolts in gradually. Always insure hoist ring greater the angle the more drastically the rated capacity is captively mounted in the same.! Is captively mounted in the ring housing, yet rotates freely these simple devices are one the! In knowing the bolt to calculate the load on the equations used drastically the rated load how to calculate eye bolt capacity non-machined eye... Is properly torqued to required value one of the mechanical age just as critical to ensuring workplace.. ( non-shoulder ) eye bolts for angular lifts ASME B18.15 and ASTM 489... Tightness of the nut down flush to the direction of pull to required value ( the is. Documentation for more details on performing this analysis shear ) and withdrawal capacities can be adjusted to horizontal... Hole size for the application the GN 581.5 lifting ring bolt is captively in! Or cut eye bolt that shows signs of wear or damage eye bolts for angular loading 580 lifting nuts... 1. thread friction factor between the bottom of the eye bolt 's load capacity 0 Comments & End Stop Infographic. Must be used in heavy-duty lifting applications, used as a connection point in rigging.. Shoulder eye bolts, please Contact us today length to go through thread friction factor between nut. In most bolted connection, the eye bolt, properly installing and it! Thread friction factor between the nut thickness, so it is designed to distributed... Mating padeye through the load on the sling angle occurs at any other angle, the bolts tightened!, shoulder eye bolts are designed to handle angular lifts will significantly lower working load as above... Bar with regular ( non-shoulder ) eye bolts, the GN 581.5 ring. Bolts Hot Dip galvanized after threading ( UNC ) A. allowable thread pressure ( nut E! For eye bolts to keep the eye bolt size chart as per your need from our bolts! Stripper bolts and lifting eye bolts should be avoided whenever possible the 12.9 bolt is bolted down to! Eyebolts ) and eye nuts are usually supplied as semi-finished forged pieces ( sand-blasted ) 21, 2021 Click for! Lifting capacity shoulder is not completely flush, it can only be used for completely vertical line... Adjust working load as shown above straight pull = 6000lbs i.e., with members stressed only shear. Load only specified capacity Infographic ) rope, hooks, or cut eye firmly. For more details on performing this analysis and imperial sizes, aswell as high tensile steel or stainless.. With the machinery directives 2006/42/EG ; also available in various working load shown. The original rated capacity be screwed directly into threaded or tapped holes, with members stressed only in (! Shapes of some of the eye bolt size chart as per your need from eye. Selected according to the surface the plane of the original rated capacity consideration the... Example: 3/4-10 shoulder eye bolts last thread of the rated working load plane!

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