RUD CASE-HARDENED ROUND STEEL CHAINS.
In demanding and safety relevant industries, case-hardened RUD chains of RTS, RTD and RTB are the safe partner for
every electric hoist. High demands on resistance, wear resistance and reliability are guaranteed to the maximum.
For motor-driven hoists:
- for high wear application according to DIN EN 818-7-T
- have an extraordinarily high vibration resistance, which contributes decisively to the avoidance of fatigue fractures during operation
Technical data of the case-hardened RUD round link chain.
| VERSION GRADE DAT/T | ||
|---|---|---|
| Mechanism GROUP ISO 4301-1 (FEM 9.511) | NOMINAL stress [N/mm ²] | LIMIT stress [N/mm ²] |
| M1 (1Dm) | 200 | 250 |
| M2 (1Cm) | 160 | 225 |
| M3 (1Bm) | 160 | 200 |
| M4(1Am) | 140 | 180 |
| M5 (2m) | 125 | 160 |
| M6 (3m) | 112 | 140 |
| M7 (4m) | 100 | 125 |
| M8 (5m) | 90 | 112 |
| QUALITY AND DESIGNATION VERSION DAT | RTS | RTD | RTB | ||
|---|---|---|---|---|---|
| Production test stress | σFPmin | N/mm ² | 500 | ||
| Breaking stress | σBmin | N/mm ² | 800 | ||
| Elongation at break | Amin | % | 10 | ||
| Surface hardness according to DIN EN 818-7 | d≤6.5 ⌀ d ≥7 ⌀ | HV 5 HV 10 | 500 - 650 | ||
| Case hardening depth in the joint HTÄ (after macro etching) | …d ±0.01 d | mm | ≤ ⌀ 4/ 0.05 ⌀ 4.1-7 / 0.04 ⌀8-16 / 0.03 ≥ ⌀ 16.1 / 0.02 | < ⌀8 / 0.05 ⌀8-11.5 / 0.04 ≥⌀12 / 0.03 | < ⌀8 / 0.05 ⌀8-11.5 / 0.04 ≥⌀12 / 0.03 |
| Fatigue strength | N/mm ² | 130 ± 80 | 130 ± 90 | 130 ± 100 | |
| DIMENSION [mm] | LOAD CAPACITY Ftr [LBS] PER DRIVE GROUP | Proof force | Breaking force | WEIGHT [LBS/ft] | Grade | MATERIAL NUMBER | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 (1Bm) | M4 (1Am) | M5 (2m) | M6 (3m) | FFPmin [kN] | FBmin [kN] | RTS | RTD | RTB | |||
| nominal stress 160 N/mm² | nominal stress: 140 N/mm² | nominal stress: 125 N/mm² | nominal stress: 112 N/mm² | ||||||||
| SAFETY FACTOR: 5 | SAFETY FACTOR: 5.7 | SAFETY FACTOR: 6.4 | SAFETY FACTOR: 7.1 | ||||||||
| 3 x 9 | 507 | 441 | 397 | 353 | 7.0 | 11.3 | 0.13 | x | 7985902 | ||
| 4 x 12 | 904 | 771 | 705 | 617 | 12.6 | 20.1 | 0.24 | x | x | x | 7100183 |
| 5 x 15 | 1,411 | 573 | 1,102 | 970 | 19.6 | 31.4 | 0.36 | x | x | x | 7100184 |
| 6 x 18 | 2,028 | 1,763 | 1,587 | 1,411 | 28.3 | 45.2 | 0.52 | x | x | 7101362 | |
| 6.3 x 19 | 2,204 | 1,940 | 1,741 | 1,565 | 31.2 | 49.9 | 0.58 | x | 7983648 | ||
| 6.3 x 19.1 | 2,204 | 1,940 | 1,741 | 1,565 | 31.2 | 49.9 | 0.58 | x | 7102922 | ||
| 7 x 21 | 2,755 | 2,402 | 2,160 | 1,917 | 38.5 | 61.6 | 0.74 | x | x | x | 7102168 |
| 7 x 22 | 2,755 | 2,402 | 2,160 | 1,917 | 38.5 | 61.6 | 0.74 | x | x | x | 7102168 |
| 7.1 x 20.2 | 2,755 | 2,402 | 2,160 | 1,917 | 39.6 | 63.3 | 0.74 | x | x | 7103637 | |
| 7.1 x 21.2 | 2,843 | 2,491 | 2,204 | 1,984 | 39.6 | 63.3 | 0.74 | x | 7102924 | ||
| 8 x 24 | 3,615 | 3,989 | 2,821 | 2,513 | 50.3 | 80.4 | 0.94 | x | 7101363 | ||
| 9 x 27 | 4,562 | 4,937 | 3,570 | 3,196 | 63.6 | 102 | 1.21 | x | x | x | 7100186 |
| 10 x 28 | 5,642 | 4,937 | 4,408 | 3,945 | 78.5 | 126 | 1.48 | x | 7102169 | ||
| 10 x 30.2 | 5,642 | 5,951 | 4,408 | 3,945 | 78.5 | 126 | 1.48 | x | 7102926 | ||
| 11 x 31 | 6,832 | 6,171 | 5,334 | 4,761 | 95 | 152 | 1.81 | x | 7102955 | ||
| 11.2 x 34 | 7,053 | 6,171 | 5,510 | 4,937 | 98.5 | 157.6 | 1.81 | x | 7102927 | ||
| 11.2 x 34.4 | 7,053 | 6,171 | 5,510 | 4,937 | 98.5 | 157.6 | 1.81 | x | 7102930 | ||
| 11.3 x 31 | 7,207 | 6,303 | 5,620 | 5,025 | 160.5 | 160.5 | 1.81 | x | x | x | 7992923 |
| 13 x 36 | 9,543 | 8,331 | 7,450 | 6,678 | 132.7 | 212.3 | 1.91 | x | x | 59733 | |
| 16 x 45 | 14,436 | 12,629 | 11,284 | 10,116 | 201 | 322 | 3.83 | x | x | 55004 | |
| 23.5 x 66 | 31,076 | 27,263 | 24,244 | 21,820 | 434 | 694 | 8.20 | x | 7993516 | ||