Idler life is a function of many factors, such as belt speed, shell thickness, seals, and bearings. The idler load and rating of a bulk material handling belt conveyor system depend on the rating of the bearing. The table below covers standard-bearing dimensions used on typical conveyor idlers.
| Pu (kN) (kN) | C0 (kN) (kN) | C (kN) (kN) | Limiting speed r/min (r/min) | Reference speed r/min (r/min) | Designation | d - shaft series (mm) (mm) | D (mm) (mm) | B (mm) (mm) | Applicable Standards | |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.212 | 5 | 9.95 | 24000 | 38000 | 6004 | 20 | 42 | 12 | ||
| 0.173 | 4.05 | 7.28 | 24000 | 38000 | 16004 | 20 | 42 | 8 | ||
| 0.28 | 6.55 | 13.5 | 20000 | 32000 | 6204 | 20 | 47 | 14 | ||
| 0.335 | 7.8 | 16.8 | 19000 | 30000 | 6304 | 20 | 52 | 15 | ||
| 0.275 | 6.55 | 11.9 | 20000 | 32000 | 6005 | 25 | 47 | 12 | ||
| 0.212 | 4.75 | 8.06 | 20000 | 32000 | 16005 | 25 | 47 | 8 | ||
| 0.49 | 11.6 | 23.4 | 16000 | 24000 | 6305 | 25 | 62 | 17 | SANS 1313-1 | |
| 0.31 | 7.35 | 11.9 | 17000 | 28000 | 16006 | 30 | 55 | 9 | ||
| 0.67 | 16 | 29.6 | 13000 | 20000 | 6306 | 30 | 72 | 19 | SANS 1313-1 | |
| 0.355 | 8.3 | 13.8 | 17000 | 28000 | 6006 | 30 | 55 | 13 | ||
| 0.475 | 11.2 | 20.3 | 15000 | 24000 | 6206 | 30 | 62 | 16 | SANS 1313-1 | |
| 0.375 | 8.15 | 13 | 15000 | 24000 | 16007 | 35 | 62 | 9 | ||
| 0.655 | 15.3 | 27 | 13000 | 20000 | 6207 | 35 | 72 | 17 | ||
| 0.44 | 10.2 | 16.8 | 15000 | 24000 | 6007 | 35 | 62 | 14 | ||
| 0.815 | 19 | 35.1 | 12000 | 19000 | 6307 | 35 | 80 | 21 | SANS 1313-1 | |
| 0.815 | 19 | 35.1 | 12000 | 19000 | 6307 M | 35 | 80 | 21 | SANS 1313-1 | |
| 0.44 | 10.2 | 13.8 | 14000 | 22000 | 16008 | 40 | 68 | 9 | ||
| 0.49 | 11 | 17.8 | 14000 | 22000 | 6008 | 40 | 68 | 15 | ||
| 0.8 | 19 | 32.5 | 11000 | 18000 | 6208 | 40 | 80 | 18 | ||
| 1.02 | 24 | 42.3 | 11000 | 17000 | 6308 | 40 | 90 | 23 | SANS 1313-1 | |
| 0.335 | 7.8 | 14.8 | 18000 | 28000 | 6205 | 25 | 52 | 15 | SANS 1313-1 |
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