RCS-81H Type B
Part #RCS-81H Type B
Constant Spring

The RCS-81H “TYPE B” manufactured with two(2) lugs to accommodate attachment to the building structure and allowing for the use of various types of attachments. (Example: RILCO Part #100, or Part #290). Available in most types of finishes.
Hanger Sizes | D | E | F |
| H | M | N | Total Travel (in.) | L | C | Factors | A | |
1 – 9 | 8 7/16 | 1 1/4 | 7/8 | 1 1/2 | 6 1/8 | 4 1/8 | ≤ 4 | 13 15/16 | 5 1/2 | 14 5/8 | 1/2 | ||
>4 1/2 | 17 15/16 | 9 1/2 | 17 3/16 | ||||||||||
10 – 18 | 8 7/16 | 1 1/4 | 1/2 | 1 1/2 | 8 5/16 | 6 7/16 | ≤ 5 | 18 7/16 | 7 1/2 | 13 1/16 | 3/4 | ||
>5 1/2 | 21 7/16 | 10 1/2 | 15 7/16 | ||||||||||
19 – 34 | 14 7/16 | 1 3/8 | 5/8 | 2 | 12 7/16 | 8 9/16 | ≤ 5 | 26 15/16 | 9 3/4 | 19 7/8 | 1 1/4 | ||
>5 1/2 | 31 1/16 | 13 7/8 | 22 | ||||||||||
35 – 49 | 17 7/16 | 2 | 11/16 | 3 | 13 3/4 | 9 13/16 | ≤ 6 | 31 9/16 | 10 1/2 | 25 5/8 | 1 3/4 | ||
>6 1/2 | 39 9/16 | 18 1/2 | 30 1/8 | ||||||||||
50 – 63 | 26 3/16 | 3 | 15/16 | 4 | 17 3/8 | 11 1/4 | ≤8 | 45 9/16 | 13 3/8 | 30 11/16 | 2 1/4 | ||
8 1/2 to 11 | 53 9/16 | 21 3/8 | 30 11/16 | ||||||||||
>11 1/2 | 53 9/16 | 21 3/8 | 36 | ||||||||||
64 – 74 | 35 3/4 | 3 1/4 | 3 1/4 | 4 1/2 | 22 3/16 | 11 | ≤10 1/2 | 57 1/2 | 15 3/4 | 42 3/8 | 2 3/4 | ||
>11 | 63 | 20 3/4 | 42 1/2 | ||||||||||
75 – 83 | 35 3/4 | 3 1/2 | 3 5/8 | 5 | 27 3/16 | 11 | ≤10 1/2 | 57 1/2 | 15 3/4 | 45 3/4 | 3 1/4** | ||
>11 | 63 | 20 1/4 | 45 7/8 | ||||||||||
84-110 | See RCS-81H Types A, B, C and E Constants Page | ||||||||||||
A-Rod and K-Hole Selection Chart | |||||||||||||
Loads (lbs) | 0 | 801 | 1501 | 2541 | 4001 | 6101 | 9401 | 13401 | 18301 | 24701 | 31001 | 39001 | 48001 |
A Rod Size | 1/2 | 5/8 | 3/4 | 1 | 1 1/4 | 1 1/2 | 1 3/4 | 2 | 2 1/4 | 2 1/2 | 2 3/4 | 3 | 3 1/4** |
K-Hole Size | 11/16 | 13/16 | 15/16 | 1 1/4 | 1 1/2 | 1 3/4 | 2 | 2 3/8 | 2 5/8 | 2 7/8 | 3 1/8 | 3 3/8 | 3 5/8 |
R | 1 1/4 | 1 1/4 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 2 1/2 | 3 | 3 | 4 | 4 | 4 | 4 1/2 |
T | 1/4* | 1/4* | 3/8 | 1/2 | 5/8 | 3/4 | 3/4 | 3/4 | 3/4 | 1 | 1 | 1 | 1 |
W | 2 1/2 | 2 1/2 | 2 1/2 | 3 | 4 | 5 | 5 | 6 | 6 | 8 | 8 | 8 | 9 |
* 3/8 for single rod suspension ** 3 1/4 inch is furnished with 8 UN series thread. |