Crosby® Links, Rings and Turnbuckles
Links and Rings
Working Load Limits in lbs. are for use with wire rope and synthetic slings at a design factor of 5.
| Size of Link (in.) |  G-341 Carbon |
 A-341 Alloy |
 A-342 Alloy |
|---|---|---|---|
| 1/2 | 2900 | 7000 | 7000 |
| 5/8 | 4200 | 9000 | 9000 |
| 3/4 | 6000 | 12300 | 12300 |
| 7/8 | 8300 | 15000 | 15000 |
| 1 | 10800 | 24360 | 24360 |
| 1-1/8 | N/A | 30600 | N/A |
| 1-1/4 | 16750 | 36000 | 36000 |
| 1-3/8 | 20500 | 43000 | N/A |
| 1-1/2 | N/A | 54300 | 54300 |
| 1-5/8 | N/A | 62600 | N/A |
| 1-3/4 | N/A | 84900 | 84900 |
| 2 | N/A | 102600 | 102600 |
120° Maximum included angle for pear shape links and master links.
The use of a collector ring insures that the slings will be in the base of the hook.
Turnbuckles
Turnbuckles Crosby heat treated turnbuckles are suitable for critical applications. Working Load Limits are in lbs.
Use jaw or eye end turnbuckles for overhead lifting. Hook style turnbuckles are for guying or “plumbing up”.
| Size | Working Load Limit Jaw and Eye 5/1 Design Factor |
Working Load Limit Hook End Fitting 5/1 Design Factor |
|---|---|---|
| 1/4 | 500 | 400 |
| 5/16 | 800 | 700 |
| 3/8 | 1200 | 1000 |
| 1/2 | 2200 | 1500 |
| 5/8 | 3500 | 2250 |
| 3/4 | 5200 | 3000 |
| 7/8 | 7200 | 4000 |
| 1 | 10000 | 5000 |
| 1-1/4 | 15200 | 6500 |
| 1-1/2 | 21400 | 7500 |
Load applied should be in line and in tension, turnbuckles should not be side loaded.
Turnbuckles must be secured to prevent unscrewing during the lift or for long-term installations should be adjusted with a properly sized wrench, used on the wrench flats of the turnbuckle body.