Belt Conveyor Trough Steel Return Carrier Idler Roller For Coal Mining
The carrier rollers are what actually fits into the track and has a hook that hangs down from them for the curtain to hang on. On normal installations you will need to figure one carrier roller for ever 6" of curtain including curves if applicable. If you have 33 feet of curtains you will need 67 carrier rollers. Multiply the number of feet by two and add one extra for the starting roller. The carrier rollers come in packs of 10 so you would need to order 7 packages of rollers for a 33 foot curtain installation.
The 6 inch spacing is for an average weight installation. If you are using the curtain track for photograph silks that are very light you can use what ever suits your application. If you are using the curtain track to hold a small theater curtain you would need to increase the number of rollers and decrease the distance between them.
Roller inner structure and material:
(a) Shaft: Bright drawn steel to required bearing tolerance
(b) Shaft end: Both ends of tube are simultaneously machined and chamfered
(c) Bearing: Single and double row deep groove ball bearing 2RZ and 2Z with C3 clearance
(d) Rubber: Heat vulcanization rubber. Wear resistant, anti-fire
(e) Seals: Grease retaining inner seal with multi-stage labyrinth and retention cap with outboard rubbing flinger seal
(f) Lubrication: Grease is lithium soap type grease with rust inhibitors
(g) Welding: Mixed gas shielded arc welding end
(h) Our roller saves on repair and maintenance costs of the conveyor belt due to the concentric design which decreases vibration
conveyor roller Description
Idler Diameter(mm) | Length Scope(mm) | Shaft Diameter(mm) | Bearings Type(Min-Max) | Idler's Shell Wall Thickness(mm) |
50 | 150-2500 | 20;25 | 204 | 3.2-4.0 |
76 | 20;25 | 204 205 | ||
89 | 20;25 | 204 205 | 3.2-6.0 | |
102 | 20;25;30 | 204 205 305 | 3.5-6.0 | |
108 | 20;25;30 | 204 205 305 306 | ||
114 | 20;25;30 | 205 206 305 306 | ||
127 | 20;25;30 | 204 205 305 306 | ||
133 | 20;25;30 | 205 206 207 305 306 | ||
140 | 20;25;30 | 205 206 207 305 306 | ||
152 | 20;25;30 | 205 206 207 305 306 307 308 | 4.0-6.0 | |
159 | 20;25;30;40;45 | 205 206 207 305 306 307 308 | ||
165 | 20;25;30;40;45 | 207 305 306 307 308 | 4.5-6.0 |
The basic types of rollers:
(1) The rollers are classified into self-aligning rollers, buffer rollers, trough rollers, and parallel rollers according to their uses. The function of the self-aligning roller is to correct the deviation of the belt of the belt conveyor. Usually, a rotary groove-shaped self-aligning roller is installed on the heavy-duty section of the conveyor, and a parallel self-aligning roller is installed on the no-load section. The buffer roller is applied to the tailstock of the machine according to the actual situation. When receiving the material, it can reduce the impact of the material on the belt, which is beneficial to the service life of the long belt. The trough-shaped roller is generally composed of two side rollers and a flat roller. The groove angle is generally 30 degrees. For a detachable belt conveyor, the three rollers of the trough-shaped roller are hinged to each other, so Called hinged roller. The parallel roller is generally a long roller, which is installed at the lower end under pressure, so it is called the lower roller.
(2) The rollers are divided into two types: steel rollers and plastic rollers. There are three types of bearing seats for rollers: cast iron, stamped steel plate and phenolic plast