R2250 Series Polyvee Pulley Driven Roller
Application area
Internal driven conveyor systems, the poly-v pulley is fixed at the end of the roller which separates the driven area and the conveying area, precision ball bearing with polymer bearing housing, which makes the conveying smooth, high speed and low noisy. Widely applied in light-medium load conveyors to transport cases, carboards, containers, barrels or tires, it is the most popular kind of conveyor roller in case-packed goods transportation.
Heavy load capacity
The nine grooves at 2.34mm pitch of the polyvee pulley allows the use of 2-rib, 3-rib or 4-rib poly-v belt. Compare with a round belt, the use of a 2-rib belt allows transferring approximately twice the torque.
High speed and low noisy
Poly-v belt drive, precision ball bearing and polymer bearing housing which makes poly-v pulley driven roller has the advantages of smooth running, low noisy and high speed up to 120 m/min.
Good protection against dirt and water
The plastic end cap seal protect the bearing by providing excellent resistance to dust and splashed water.
Lateral loading
Standard configuration, the bearing housing with end cap and bearing is pressed into the tube and the tube ends are rounded, thereby allowing materials to be easily moved on from the side.
Technical data
General technical data | |
Max. load capacity | 180 KGS |
Max. conveyor speed | 120 m/min |
Temperature range | −5 to +40 °C |
Material | |
Tube | Carbon steel, stainless steel |
Shaft | Antirust oil coated steel, Zinc-plated steel, Stainless steel |
Bearing housing | Polyamide, black |
End cap | Polypropylene, yellow/grey |
Bearing | Precision ball bearing |
Drive Element | |
Poly-vee wheel | Polyamide, black |
Design versions | |
Surface treatment | Zinc-plated, chrome-plated |
Tube sleeves | PP sleeve, PU sleeve |
Lagging | Rubber, PU |
Diagram of R2250 Poly-v Wheel Driven Roller
Dimension of series R2250 polyvee driven conveyor roller with spring loaded installation
Tube Material | D × T | Shaft | E | L |
Steel, stainless steel | 50×1.5 | Φ12/11 HEX | E=W+35.5 | L=W+57.5 |
Dimension of series R2250 poly-v pulley roller with female thread installation
Tube Material | D × T | Shaft | E | L |
Steel, stainless steel | 50×1.5 | Φ12/11 HEX | E=W+35.5 | L=W+36.5 |
Polyvee belt selection
Polyvee belt selection is according to the roller pitch, speed and loading weight, please refer to the following chart.
Roller Pitch (mm) | Type of poly-vee belt | |
2-rib | 3-rib | |
60~62 | 2PJ256 | 3PJ256 |
73~75 | 2PJ286 | 3PJ286 |
87~91 | 2PJ314 | 3PJ314 |
97~101 | 2PJ336 | 3PJ336 |
119~121 | 2PJ376 | 3PJ376 |
123~128 | 2PJ388 | 3PJ388 |
144~151 | 2PJ435 | 3PJ435 |
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