Hold the Line
Belting is the most expensive component of a conveying system. Superior’s Self-Aligning Idlers ensure that your conveyor belts stay on track, minimizing the chance of severe belt damage.
Concave in shape, the idler’s side guide rollers restrain the belt from running up and over the conveyor. In order to lessen the wear on the belt, the side guide rollers are made with high-grade HDPE that reduces the friction between the idler and belt.
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Models
Advantages
Troughing Idler
Short sentence describing the ideal applications for a troughing idler.
Troughing Idler
Short sentence describing the ideal applications for a troughing idler.
Troughing Idler
Short sentence describing the ideal applications for a troughing idler.
Troughing Idler
Short sentence describing the ideal applications for a troughing idler.
The Next Generation Idlers
After decades of field testing and refinement, the next generation of idlers is here.
Superior just completed the biggest idler redesign of your lifetime. Millions have been invested in automated and modern manufacturing.
Reduce maintenance, reduce failure, and protect the belt. Get Superior-built steel idlers made to size for your specific application.
Videos
Overhead view of 3055 Liberty Jaw crushing boulders
Overhead view of 3055 Liberty Jaw crushing boulders
Overhead view of 3055 Liberty Jaw crushing boulders
Liberty Jaw Models & Specifications
Standard Specifications
| Model | Weight | Feed Opening | CSS | Capacity | Speed | Max Feed Size | Power | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| kg | lbs | mm x mm | in x in | mm | in | mtph | stph | rpm | mm | in | kW | hp | |
| 2155B | 16,500 | 36,400 | 530 x 1,400 | 21 x 55 | 40–130 | 1.6"–5.1" | 90–400 | 100–440 | 280 | 427 | 16.8" | 110 | 150 |
| 2636B | 14,050 | 31,000 | 650 x 900 | 26 x 36 | 60–160 | 2.4"–6.3" | 110–360 | 120–396 | 300 | 528 | 20.8" | 75 | 100 |
| 3042B | 15,700 | 34,600 | 750 x 1,070 | 30 x 42 | 70–200 | 2.75"–8" | 150–500 | 165–550 | 280 | 610 | 24.0" | 110 | 150 |
| 3343B | 22,300 | 49,200 | 830 x 1,100 | 33 x 43 | 80–200 | 3.2"–8" | 180–620 | 200–680 | 270 | 671 | 26.4" | 110 | 150 |
| 3055B | 26,950 | 59,000 | 760 x 1,400 | 30 x 55 | 70–200 | 2.75"–8" | 240–780 | 265–855 | 260 | 610 | 24.0" | 160 | 200 |
| 3455B | 31,500 | 69,445 | 860 x 1,400 | 34 x 55 | 100–200 | 4"–8" | 320–800 | 353–880 | 250 | 691 | 27.2" | 160 | 200 |
| 3448B | 28,000 | 62,000 | 860 x 1,220 | 34 x 48 | 70–200 | 2.75"–8" | 170–560 | 185–615 | 250 | 691 | 27.2" | 160 | 200 |
| 4051B | 42,000 | 92,600 | 1,010 x 1,300 | 40 x 51 | 100–200 | 4"–8" | 290–880 | 320–970 | 230 | 813 | 32.0" | 160 | 200 |
| 4655B | 52,500 | 115,800 | 1,160 x 1,400 | 46 x 55 | 150–250 | 6"–10" | 400–900 | 440–990 | 230 | 935 | 36.8" | 200 | 300 |
| 5165B | 71,250 | 157,100 | 1,290 x 1,650 | 51 x 65 | 150–270 | 6"–10.5" | 550–1,100 | 605–1,210 | 220 | 1,036 | 40.8" | 250 | 350 |
| 6080B | 135,000 | 297,000 | 1,525 x 2,030 | 60 x 80 | 200–300 | 8"–12" | 700–1,450 | 770–1,595 | 200 | 1,219 | 48.0" | 400 | 500 |
Gradation / Percent Passing
| Size of Material | Percent Passing for a Given Closed Side Setting - Average Feed Material (12-14 Work Index) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| in | mm | 1.5" (38mm) | 2" (50mm) | 2.5" (63mm) | 3" (76mm) | 3.5" (88mm) | 4" (101mm) | 5" (127mm) | 6" (152mm) | 7" (177mm) | 8" (203mm) | 10" (254mm) | 11" (279mm) | 12" (304mm) |
| 18 | 457 | 100% | 100% | |||||||||||
| 16 | 406 | 100% | 98 | 94 | ||||||||||
| 14 | 355 | 98 | 90 | 83 | ||||||||||
| 12 | 304 | 100% | 84 | 77 | 70 | |||||||||
| 10 | 254 | 100% | 100% | 88 | 70 | 64 | 58 | |||||||
| 8 | 203 | 100% | 94 | 80 | 70 | 56 | 51 | 47 | ||||||
| 7 | 177 | 94 | 82 | 70 | 61 | 49 | 45 | 41 | ||||||
| 6 | 152 | 100% | 100% | 82 | 70 | 60 | 53 | 42 | 38 | 35 | ||||
| 5 | 127 | 100% | 99 | 87 | 70 | 58 | 50 | 44 | 35 | 32 | 29 | |||
| 4 | 101 | 100% | 100% | 92 | 80 | 70 | 56 | 47 | 40 | 35 | 28 | 25 | 23 | |
| 3 | 76 | 100% | 95 | 83 | 70 | 60 | 53 | 42 | 35 | 30 | 27 | 21 | 19 | 18 |
| 2.5 | 63 | 95 | 85 | 70 | 59 | 50 | 44 | 35 | 29 | 25 | 22 | 18 | 16 | 15 |
| 2 | 50 | 85 | 70 | 57 | 48 | 40 | 35 | 28 | 24 | 20 | 18 | 14 | 13 | 12 |
| 1.5 | 38 | 69 | 52 | 42 | 35 | 30 | 26 | 21 | 18 | 15 | 14 | 11 | 10 | 9 |
| 1 | 25 | 44 | 34 | 28 | 23 | 20 | 17 | 14 | 12 | 10 | 9 | 7 | 7 | 6 |
| 0.75 | 19 | 32 | 25 | 21 | 18 | 15 | 13 | 11 | 9 | 8 | 7 | 5 | 5 | 5 |
| 0.5 | 12 | 22 | 18 | 15 | 12 | 10 | 9 | 7 | 6 | 5 | 5 | 4 | 4 | 3 |
| 0.25 | 6 | 12 | 10 | 8 | 6 | 5 | 5 | 4 | 3 | 3 | 2 | 2 | 2 | 1 |
Real Stories, Proven Performance
Downloads
Strength Beneath the Belt
The load zone is the most punishing part of any conveyor. Falling rock, sudden impact, and heavy material loads can quickly damage belts and shorten component life. Impact idlers, beds, and cradles absorb that force, stabilize the belt, and protect the system where it takes the hardest hits.
Superior® impact support solutions are engineered for real loading conditions. From resilient impact rolls to energy-absorbing beds and curved cradles that eliminate gaps beneath the belt, each component helps reduce shock, prevent belt damage, and keep material moving through the transfer point.
Models
Impact Idlers
Rubber rings connected to steel rolls absorb the force of falling material, cushioning the belt and reducing damage at conveyor loading or tranfering points.
Videos
During our time at CONEXPO-CON/AGG 2026, Joe took a minute to showcase benefit's of Superior's Impact Cradle.
See how a U-shaped design and segmented impact cartridges work together to support the belt and simplify maintenance.
Which Part is Right?
Over-designed conveyor components waste money while undersized models can lead to costly downtime. Skip the guesswork...let's get it right!
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