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IMPORTANT - Read
and understand these instructions
before using eye bolts
Regular Nut
& Shoulder Nut Eye Bolt - Installation For In-line Loading
Operating Safety
-
Always stand clear of load.
-
Always lift load with steady, even pull
- do not jerk.
-
Always apply load to eye bolt in the
plane of the eye - not at an angle.
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-
Never exceed the capacity of the eye
bolt-see Table I.
-
When using lifting slings of two or
more legs, make sure the loads in the legs are calculated using the angle from
the vertical to the leg and properly size the shoulder nut or machinery eye
bolt for the angular load.
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Machinery Eye bolt - Installation - Line & Angle Loading
These eye bolts are
primarily intended to be installed into tapped holes.
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1. After the loads on the
eye bolts have been calculated, select the proper size eye bolt for the job.
For angular lifts, adjust working load as follows: |
| Direction
of Pull |
Adjusted
Working Load |
| 45
degrees |
30% of
rated working load |
| 90
degrees |
25% of
rated working load |
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2. Drill and tap the
load to the correct sizes to a minimum depth of one-half the eye bolt size
beyond the shank length of the machinery eye bolt.
3. Thread the eye bolt into the load until the shoulder is flush and
securely tightened against the load.
4. 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.
5. 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. Use Table II to estimate the required shim thickness for the
amount of unthreading rotation required. |
|
| Table
II |
Eye Bolt Size
(in.) |
Shim
Thickness Required to Change Rotation 90
(in.) |
| 1/4 |
.0125 |
| 5/16 |
.0139 |
| 3/8 |
.0156 |
| 1/2 |
.0192 |
| 5/8 |
.0227 |
| 3/4 |
.0250 |
| 7/8 |
.0278 |
| 1 |
.0312 |
| 1-1/4 |
.0357 |
| 1-1/2 |
.0417 |
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