Table of Contents
- 1 How do you determine allowable angle pulls for eye bolts?
- 2 What is the safe working load for a 1 eye hook?
- 3 Can you use eye bolts for swings?
- 4 What eyebolt is never used for lifting?
- 5 How much weight can a 3/8 eye lag hold?
- 6 How do I choose an eye bolt?
- 7 What is the rated capacity of an eye bolt?
- 8 How to adjust load for shoulder eye bolts?
- 9 What’s the proper way to clean eye bolts?
How do you determine allowable angle pulls for eye bolts?
Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. Use eye bolts at a horizontal angle greater than 45°. Sling strength at 45° is 71% of vertical sling capacity. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity.
What is the safe working load for a 1 eye hook?
Shoulder Eye Bolts
| Shank Diameter | Working Load Limit In Linepull (lbs.) | Working Load Limit Angle Less Than 45° (lbs.) |
|---|---|---|
| 7/8 | 10600 | 2650 |
| 1 | 13300 | 3325 |
| 1-1/4 | 21000 | 5250 |
| 1-1/2 | 24000 | 6000 |
What is the maximum angular pull allowed on a shouldered eye bolt?
Always use shoulder nut eye bolts (or machinery eye bolts) for angular lifts….Assembly Safety:
| Direction of Pull (in-line) | Adjusted Work Load |
|---|---|
| 45 degrees | 30% of Work Load Limit |
| 90 degrees | 25% of Work Load Limit |
Can you use eye bolts for swings?
New swings usually come with hanging chains or ropes. If you prefer not to use a hanger kit, use heavy-duty galvanized or stainless-steel screw eyes, screw hooks or eye bolts with an enclosed ring or hook on one end so you can attach your rope or chain.
What eyebolt is never used for lifting?
Bent eye bolts should only be used in light duty applications and should never be used to execute angular lifts.
How much weight can a 1/4 20 bolt hold?
Material Strength – 60,000 psi J82 60M or Grade 1 or Class 4.8
| Size | Dia. | Proof Load Str. Lbs |
|---|---|---|
| 10-24 | 0.1900 | 578 |
| 10-32 | 0.1900 | 660 |
| 1/4-20 | 0.2500 | 1,049 |
| 1/4-28 | 0.2500 | 1,200 |
How much weight can a 3/8 eye lag hold?
In this case, the catalog working load limit of this 3/8th inch eye bolt is 1,550 pounds.
How do I choose an eye bolt?
First, determine thickness of what the eye bolt will be going through. Then, choose an eye bolt with a shank long enough so that the threads protrude on the back side and allow the nut to be tightened properly.
What are lifting eye bolts used for?
Lifting eye bolts are used for the overhead lifting of equipment and machinery. They feature a threaded shank with a ring or loop at one end called the eye.
What is the rated capacity of an eye bolt?
The reason for this is to safely accommodate various loads/weights to be lifted. The safe load of an eye bolt is designed to lift is called the Rated Capacity or Rated Working Load. Rated capacity refers to the load a single eye bolt can lift when the load is applied through the shank of the eye bolt.
How to adjust load for shoulder eye bolts?
For angular lifts, adjust working load as shown above. Always tighten nuts securely against the load. Always apply load to eye bolt in the plane of the eye. When using lifting slings of two or more legs make sure the forces in the leg are calculated. Select the proper size swivel hoist ring to allow for load in sling leg.
When does an eye bolt diminish in capacity?
As soon as a lift begins to occur at any other angle, referred to as angular lift, the rated capacity of the eye bolt begins to diminish. The greater the angle the more drastically the rated capacity is reduced. The chart below shows the impact the direction of pull has on rated capacity:
What’s the proper way to clean eye bolts?
• Always inspect and clean the eye bolt threads and the hole before using. • Loads should always be aligned to the plane of the eye, not at an angle to the plane. A steel washer or spacer may be used in conjunction with shoulder eye bolts to attain proper load alignment.