carried out to compare the result. The manufacturer should be able to provide you with a shim of the proper thickness to turn the eye bolt to the proper alignment. Never use eye bolt that shows signs of wear or damage. Use Table 3 to estimate the required shim thickness for the amount of unthreaded rotation required. Collared: Collared or shouldered eye bolts are fully threaded and reinforced with a collar or shoulder. Always lift load with steady, even pull – do not jerk. These regular nut eye bolts are drop forged, which is a method used to form the steel by dropping molten metal into a heated billet to form a specific shape. Slings shall not be reeved through an eye bolt or reeved through a pair of eye bolts. to seat shoulder. ... Figure-8 knots are useful in preventing the ends of a rope from passing through a block or an eye? Check seating after applying an angular lift since the initial lift may cause the bolt to back away from the load. If the plane of the machinery eye bolt is not aligned with the sling line, estimate the amount of unthreading rotation necessary to align the plane of the eye properly. select the proper size eye bolt for the job. Always use shoulder nut eye bolts (or machinery eye bolts) for angular lifts. • Forged Steel - Quenched & Tempered. How are eyebolts installed? The eye bolt must be aligned during installation and tightened to secure it against rotation during lifting. Never exceed the Work Load Limit of the eye bolt, see Tables I & 2. carried out to compare the result. "At 75 degrees, there was just enough angular pull that the failure to seat the shoulders at near-capacity lift bent the eye bolt," he says. Click on the images below to see more information on Eye Bolts in our catalog. Remove the machinery eye bolt from the load and add shims (washers) of proper thickness to adjust the angle of the plane of the eye to match the sling line. For angular lifts, adjust working load as follows: 2. Always screw eye bolt down completely for proper seating. Dust, dirt and grit had built up in the tapped hole of the load, and the crew neglected to clean it out. INTRODUCTION The eye bolt hook is a very critical feature used to lift the load using a chain or seam. If such occurs, the Eyebolt should be unloaded & properly reseated. A regular nut eye bolt, also known as a plain pattern eye bolt, should not be used when applying angular loads as this procedure can bend or break them. Thickness of spacers must exceed this distance between the bottom of the load and the last thread of the eye bolt. If the load shifts or the direction of loading on the eyebolt is as much as 10 3. โ€ข Never use regular nut eye bolts for angular lifts. Never use regular nut eye bolts for angular lifts. 1.After the loads on the eye bolts have been calculated, select the proper size eye bolt for the job. The Slide-Loc does not lose capacity at any sling angle. Loads should always be applied to eye bolts in the plane of the eye, not at an angle to this plane. result from the angular loading. When installed the shoulder sits flush with the mounting surface and offers more stability to the base of the eye and prevents bending and deforming. result from the angular loading. Machinery eye bolts are designed with a shoulder and are designed for angular loading. All rights reserved. However, their strength and corrosion protection also makes them desirable for a wide range of environments. Never exceed Work Load Limits specified in Tables 1 & 2. The eyes of the steel eye bolt can accomodate wire rope, shackles and other rigging supplies. $33.30. Un-shouldered eyebolts shall only be used for vertical loads (no side loading beyond 5 degrees from vertical). See Eyebolt Rated Capacities/Guidelines (page 11). Angular lifts will significantly lower working load limits and should be avoided whenever possible. • RULE OF THUMB, IF IN DOUBT – DON’T!!! Angular lifts will significantly lower working load limits and should be avoided whenever possible. and also, the eye bolt with minimum stress is analyzed. • Working Load Limits shown are for in-line pull. T/F? 1.After the loads on the eye bolts have been calculated, select the proper size eye bolt for the job. If the load shifts or the direction of loading on the eyebolt is as much as 10 Angular lifting and loading usually requires a shouldered eye bolt as the shoulder helps maintain the strength of the eye and keeps the shank from deforming or bending. "At 75 degrees, there was just enough angular pull that the failure to seat the shoulders at near-capacity lift bent the eye bolt," he says. Loads must be applied in the plane of the fastener's eye--not at an angle to the plane-and should not exceed a 45-degree pull. Dust, dirt and grit had built up in the tapped hole of the load, and the crew neglected to clean it out. As the sling angle becomes smaller the tension being placed on the eye bolt increases while the eye bolts capacity diminishes drastically. result from the angular loading. Shoulder Nut Eye Bolt ---Installation for Angular Loading. SHOULDERED EYEBOLT Eyebolts have been around for over 100 years and have been doing a good job when used properly. Check seating after applying an angular lift since the initial lift may cause the bolt to back away from the load. If an angular lift is required, a properly seated shoulder pattern machinery eye bolt must be used. Check seating after applying an angular lift since the initial lift may cause the bolt to back away from the load. Shoulder eye bolt is manufactured in heavy duty forged steel and galvanized for corrosion resistance. If such occurs, the … For angular lifts, adjust working load as follows: 2. Whatever sling medium you use, the sling leg needs to be parallel to the eye of the eyebolt. Never use eye bolt if eye or shank is bent or elongated.
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