Head Drive Pulley
Drive pulley also called Head Pulley, it is the main part for transmitting the power. As per the different carrying capacities, The driving pulley can be divided into three categories: light duty, medium duty and heavy duty. And for the same diameter of the pulley, there are many different axle diameters and central spans.
Joyroll pulleys using international standard design and manufacturing technology, we can produce Drive/head pulley, tail pulley, snub pulley, bend pulley and take-up pulley.
THE COMPONENTS OF A HEAD PULLEY.
The components of a head pulley1. Steel pipe 2. End disc 3. Hub 4. Shaft
5. Locking assemblies (optional) 6. Plummer block (optional) 7. Rubber lagging (optional)
THE SPECIFICATION OF A HEAD PULLEY.
| Pulley Diameter ØD (mm) | Ø200, Ø250, Ø300, Ø315, Ø400, Ø500, Ø630, Ø800, Ø1000, Ø1250 | |||||||||
| Belt width B (mm) | 400 | 500 | 650 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 |
| Pulley Face Length L (mm) | 500 | 600 | 750 | 950 | 1150 | 1400 | 1600 | 1800 | 2000 | 2200 |
| Diameter At Bearing Ød | Distance Center – Center Bearings K | H | R | J | M | N | G | Plummer Block Type | Bearing |
| 40 | L+180 | 50 | 43 | 170 | 205 | 60 | M12 | SNL 509 | 22209EK |
| 50 | L+180 | 55 | 48 | 210 | 255 | 70 | M16 | SNL 511 | 22211EK |
| 60 | L+180 | 60 | 55 | 230 | 275 | 80 | M16 | SNL 513 | 22213EK |
| 70 | L+180 | 70 | 60 | 260 | 315 | 95 | M20 | SNL 516 | 22216EK |
| 80 | L+190 | 75 | 70 | 290 | 345 | 100 | M20 | SNL 518 | 22218EK |
| 90 | L+200 | 85 | 80 | 320 | 380 | 112 | M24 | SNL 520 | 22220EK |
| 100 | L+210 | 95 | 88 | 350 | 410 | 125 | M24 | SNL 522 | 22222EK |
| 110 | L+230 | 100 | 93 | 350 | 410 | 140 | M24 | SNL 524 | 22224EK |
| 115 | L+240 | 105 | 95 | 380 | 445 | 150 | M24 | SNL 526 | 22226EK |
| 125 | L+250 | 110 | 103 | 420 | 500 | 150 | M30 | SNL 528 | 22228EK |
| 135 | L+270 | 115 | 110 | 450 | 530 | 160 | M30 | SNL 530 | 22230EK |
| 140 | L+280 | 118 | 118 | 470 | 550 | 170 | M30 | SNL 532 | 22232EK |
| Pulley Diameter ØD (inch) | 8″, 10″, 12″, 14″, 16″, 18″, 20″, 24″, 26″ | |||||||||
| Belt width B (inch) | 18″ | 20″ | 24″ | 30″ | 36″ | 42″ | 48″ | 54″ | 60″ | 72″ |
| Pulley Face Length L (inch) | 20″ | 22″ | 26″ | 32″ | 38″ | 44″ | 51″ | 57″ | 63″ | 75″ |
THE LAGGING OF A HEAD PULLEY.
Pulley laggings use on a variety of pulleys that provides a cost-effective and most effective solution to correct a belt slippage, increase friction and prevent material build-up, along with additional long term system benefits. Joyroll’s laggings with rubber or ceramic tiles embeddedinto rubber afford excellent grip between belt and pulley lagging in both directions; what’s more, ceramic pulley lagging provides the solution that conventional rubber lagging fails to correct a belt slippage and/or lagging wears prematurely.
 Smooth |  Diamond |  Chevron |
 Herringbone |  Ceramic |  Replaceable Slip |
FEATURES
Reducing energy consumption
Increasing productivity
High coefficient of friction
Improving belt traction
Eliminating belt slippage
No residue on pulley
Increasing belt and pulley life
Minimizing system downtime
Reducing wear from abrasive materials.
