Knuckle & Studbush Chain
Steel knuckle chains are made from top-grade carbon and alloy steels. These chains are specifically designed for rugged and heavy duty applications, such as bucket elevators and apron conveyors. Renold manufactures the most comprehensive selection of steel knuckle chains and attachments tailored to a variety of applications.
| Chain No. | Sidebar Style | Pitch | Inner Width Max | Bushing? Knuckle Diam | Plate Height Max | Inner Plate Thick Max | Outer Plate Thick max | Pin Diam Max | Pin Length Max | Average Ultimate Strength | Rated Working Load | Weight |
| A | B | C | D | E | F | G | H | Lbs | Lbs | Lbs/Ft | ||
| 6188M | S | 2.609 | 1.063 | 0.875 | 1.125 | 0.250 | 0.250 | 0.500 | 2.520 | 26,000 | 2,730 | 3.80 |
| 6131R | S | 3.075 | 1.250 | 1.250 | 1.500 | 0.375 | 0.375 | 0.625 | 3.375 | 56,500 | 4,500 | 7.40 |
| 6382R | S | 3.075 | 1.500 | 1.250 | 1.750 | 0.375 | 0.375 | 0.625 | 3.625 | 66,000 | 4,900 | 8.20 |
| 6102R | S | 4.000 | 2.219 | 1.000 | 1.500 | 0.375 | 0.375 | 0.625 | 4.360 | 40,000 | 6,500 | 7.90 |
| 6825M | O | 4.000 | 1.563 | 1.125 | 2.000 | 0.375 | 0.375 | 0.750 | 3.780 | 83,500 | 6,500 | 8.70 |
| 6102 1/2M | S | 4.030 | 2.188 | 1.375 | 1.750 | 0.375 | 0.375 | 0.750 | 4.310 | 70,000 | 7,900 | 9.40 |
| 6111M | S | 4.760 | 2.625 | 1.438 | 2.000 | 0.375 | 0.375 | 0.750 | 4.875 | 50,000 | 8,850 | 10.20 |
| 6111MSP | S | 4.760/7.240 | 2.625 | 1.438 | 2.000 | 0.375 | 0.375 | 0.750 | 4.875 | 50,000 | 8,850 | 8.80 |
| 6130M | O | 6.000 | 1.500 | 1.500 | 2.000 | 0.375 | 0.375 | 0.875 | 3.770 | 49,000 | 6,900 | 9.40 |
| 6810MB | O | 6.000 | 2.125 | 1.250 | 1.500 | 0.375 | 0.375 | 0.625 | 4.200 | 56,600 | 6,300 | 6.50 |
| 6110R | S | 6.000 | 2.125 | 1.250 | 1.750 | 0.375 | 0.375 | 0.625 | 4.200 | 63,500 | 6,200 | 6.40 |
| 6830R | O | 6.000 | 1.563 | 1.125 | 2.000 | 0.375 | 0.375 | 0.750 | 3.810 | 66,000 | 6,070 | 7.50 |
| 6844M | S | 6.000 | 2.500 | 1.125 | 2.000 | 0.500 | 0.500 | 0.750 | 5.160 | 70,000 | 9,200 | 10.40 |
| 6944R | O | 6.000 | 2.500 | 1.120 | 2.000 | 0.500 | 0.500 | 0.750 | 5.160 | 70,000 | 9,200 | 12.70 |
| 6138R | S | 6.000 | 2.625 | 1.438 | 2.000 | 0.375 | 0.375 | 0.750 | 4.840 | 83,000 | 8,800 | 14.30 |
| 6826 | O | 6.000 | 2.375 | 1.500 | 2.500 | 0.375 | 0.375 | 0.875 | 4.950 | 95,000 | 9,500 | 13.80 |
| 6956PB | S | 6.000 | 3.000 | 1.750 | 3.000 | 0.500 | 0.500 | 1.000 | 5.922 | 144,500 | 16,000 | 18.40 |
| 6850 | S | 6.000 | 2.250 | 2.000 | 3.000 | 0.625 | 0.625 | 1.375 | 5.875 | 160,000 | 16,670 | 23.50 |
| AC850 | S | 6.000 | 2.250 | 2.000 | 2.510 | 0.625 | 0.625 | 1.313 | 6.410 | 160,000 | 16,100 | 23.50 |
| 6866R | S | 6.000 | 2.500 | 2.375 | 3.000 | 0.500 | 0.500 | 1.250 | 5.188 | 167,000 | 17,400 | 26.00 |
| 6867R | S | 6.000 | 3.000 | 1.750 | 3.250 | 0.500 | 0.500 | 1.000 | 5.860 | 170,000 | 14,000 | 21.00 |
| 6869R | S | 6.000 | 3.719 | 2.375 | 4.000 | 0.625 | 0.625 | 1.250 | 7.230 | 267,000 | 22,000 | 34.00 |
| 6969R | S | 6.000 | 3.719 | 2.500 | 4.000 | 0.625 | 0.625 | 1.500 | 7.484 | 275,000 | 30,000 | 49.90 |
| 6150RM | S | 6.050 | 3.313 | 1.750 | 2.500 | 0.500 | 0.500 | 1.000 | 6.110 | 124,000 | 15,000 | 17.20 |
| 6864R | S | 7.000 | 3.719 | 2.375 | 4.000 | 0.625 | 0.625 | 1.250 | 7.220 | 267,000 | 22,000 | 31.00 |
| 6684R | S | 7.000 | 3.750 | 2.500 | 4.000 | 0.625 | 0.625 | 1.375 | 7.250 | 270,000 | 24,000 | 48.50 |
| 6875R | S | 7.000 | 3.750 | 2.500 | 4.000 | 0.625 | 0.625 | 1.500 | 7.530 | 275,000 | 30,000 | 46.50 |
| 6874 | S | 7.000 | 4.000 | 2.750 | 4.500 | 0.750 | 0.625 | 1.750 | 7.920 | 420,000 | 38,000 | 53.60 |
| 6859R | O | 9.000 | 2.500 | 1.750 | 2.500 | 0.500 | 0.500 | 1.000 | 5.390 | 130,000 | 14,000 | 13.10 |
| 6859AR | O | 9.000 | 2.500 | 1.750 | 2.500 | 0.500 | 0.500 | 1.000 | 5.390 | 155,000 | 14,000 | 16.40 |
| 6861R | O | 9.000 | 2.250 | 2.000 | 3.000 | 0.625 | 0.625 | 1.375 | 5.625 | 162,000 | 16,000 | 24.30 |
| 6359R | S | 9.000 | 3.310 | 1.750 | 3.000 | 0.500 | 0.500 | 1.000 | 6.109 | 162,500 | 17,300 | 19.50 |
| 6882R | S | 9.000 | 3.000 | 2.375 | 3.500 | 0.620 | 0.620 | 1.500 | 6.560 | 224,000 | 24,500 | 32.70 |
| 6881AR | O | 9.000 | 3.000 | 2.375 | 3.500 | 0.625 | 0.625 | 1.500 | 6.563 | 260,000 | 24,500 | 32.00 |
| 6889PB | O | 9.000 | 2.750 | 2.750 | 4.000 | 0.625 | 0.625 | 1.623 | 6.188 | 260,000 | 26,000 | 35.50 |
| 6322CHR | O | 12.000 | 2.000 | 1.500 | 2.250 | 0.375 | 0.375 | 0.750 | 4.160 | 61,000 | 7,250 | 7.10 |
