rulmeca RDR BL3, Техническое руководство

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TECHNICAL MANUAL FOR THE RDR BL3 - V1.1 DRIVE ROLLER Rev. 21/09/2018 page 13
POSSIBLE POLY-V BELTS AND ROLLER PITCHES
Order code
Number of
ribs (*)
Reference printed
on belt
Description
Roller pitch (pulley
Ø43) [mm]
Actual extent of belt at
rest [mm]
BELT-*PJ-60 2 or 3 PJ 256 Poly-V belt, 2 or 3 ribs, PJ 256 60 252.5
BELT-*PJ-68 2 or 3 PJ 270 Poly-V belt, 2 or 3 ribs, PJ 270 65 259.8
BELT-*PJ-73 2 or 3 PJ 282 Poly-V belt, 2 or 3 ribs, PJ 282 70 271
BELT-*PJ-75 2 or 3 PJ 286 Poly-V belt, 2 or 3 ribs, PJ 286 75 275.3
BELT-*PJ-78 2 or 3 PJ 288 Poly-V belt, 2 or 3 ribs, PJ 288 78 280.1
BELT-*PJ-80 2 or 3 PJ 290 Poly-V belt, 2 or 3 ribs, PJ 290 80 284.5
BELT-*PJ-90 2 or 3 PJ 314 Poly-V belt, 2 or 3 ribs, PJ 314 90 306
BELT-*PJ-94 2 or 3 PJ 316 Poly-V belt, 2 or 3 ribs, PJ 316 95 313.5
BELT-*PJ-100 2 or 3 PJ 336 Poly-V belt, 2 or 3 ribs, PJ 336 100 325.5
BELT-*PJ-105 2 or 3 PJ 346 Poly-V belt, 2 or 3 ribs, PJ 346 105 336.6
BELT-*PJ-110 2 or 3 PJ 356 Poly-V belt, 2 or 3 ribs, PJ 356 110 347
BELT-*PJJ-120 2 or 3 PJ 376 Poly-V belt, 2 or 3 ribs, PJ 376 120 363.1
BELT-*PJ-125 2 o 3 PJ 388 Poly-V belt, 2 or 3 ribs, PJ 388 125 375
BELT-*PJ-133 2 or 3 PJ 416 Poly-V belt, 2 or 3 ribs, PJ 416 133 388
BELT-*PJ-153 2 or 3 PJ 442 Poly-V belt, 2 or 3 ribs, PJ 442 153 429
BELT-*PJ-160 2 or 3 PJ 456 Poly-V belt, 2 or 3 ribs, PJ 456 160 438.5
BELT-*PJ-175 2 or 3 PJ 486 Poly-V belt, 2 or 3 ribs, PJ 486 175 466
BELT-*PJ-200 2 or 3 PJ 536 Poly-V belt, 2 or 3 ribs, PJ 536 200 515
Warning the order code does not give the roller pitch. For permitted roller pitches, see the relevant column.
Warning the printed reference number on the belt (PJ-XXX) is not the extent and must not be used to calculate roller pitch.
The original winding diameter of the belt is calculated as 1 mm above the pulley: Dp = Ø 2 mm.
Recommended average tension 5%. Min/max permitted tension range 4-6%.
Torque transmitted by Poly-V belts with 4% min. pretensioning
Type Torque Torque loss per transmission ring
2PJ 1.0 Nm 0.028 Nm
3PJ 1.5 Nm 0.042 Nm
4PJ 2.0 Nm 0.056 Nm
Recommendations on fitting Drive Rollers
In roller conveyors provided with transmission systems with round straps or Poly-V belts, it is fundamental to install
the Drive Roller in a position that is central to the conveying area, with a similar number of driven rollers upstream
and downstream of the Drive Roller. If there is a precision stop or a significant package load, the Drive Roller can
be positioned as the first or second roller of the area, provided that the driven rollers on the other side are limited.
Technologically, the two different transmission systems ensure different performance with use restrictions.
If round straps are used, do not exceed the
maximum number of 10 driven rollers connected to each Drive
Roller, and position the Drive Roller in the middle of the area.
If Poly-V belts are used, do not exceed the
maximum number of 20 driven rollers connected to each Drive
Roller, and position the Drive Roller in the middle of the area.
The above quantities are maximum quantities for ensuring efficient transmission. If the above quantities are
exceeded, the decline in general performance may be considerable and may not ensure sufficient conveying
torque. These maximum numbers of driven rollers could be decreased, depending on the torque that can be
supplied by the different Drive Roller ratio reductions, depending on the loads to be conveyed and calculating the
torque required on the basis of the data specified above and the type of belt chosen.