User-Man-RDR BL-2 v.1.1 - Rev 30-03-17.docx pag. 1
RULMECA
GROUP
RDR
BL-2
Version 1.1
Installation,
Connection & Warranty
User Manual
Rulli Rulmeca S.p.A.
Via A. Toscanini 1, 24011 Almè (BG), Italy
Web:
RULMECA DRIVE ROLLER RDR - Mod. BL-2, ver. 1.1
GENERAL DESCRIPTION
The RDR, Rulmeca Drive Roller, is motorized by a brushless motor at
low voltage 24VDC. The electronic driver board, the motor and the
gearbox are contained inside the roller shell, with an IP54 sealing
protection degree, against the entrance of solid and liquid materials.
The Drive Roller is factory assembled with 5 possible different gear
ratios, for the most widely requested torque and speeds
requirements.
APPLICATIONS – WARNINGS
The RDR Drive Roller
is foreseen for non-continuous operation
on
unit handling conveyors
. For different applications: with belt, with
laggings or sleeves and/or for working temperatures out of the range
here stated, before ordering the RDR, please submit a detailed
description of the application, with related technical and
environmental data, in order to receive a written approval to the use
of it.
For application of tapered
RDR in curve
, please select an RDR base
roller speed lower than the cylindrical rollers or belts used in the
straight conveyors, because the tapered sectors added onto the RDR
shell increase the tangential speed proportionally to its average shell
diameter in the roller centre. Its tangential speed should be the
nearer as possible to the speed of input and output conveyors to the
curve, in order to avoid uneven frictions on RDRs and Poly-V belts in
the curve.
When
Poly-V belts transmission
is used with Drive Rollers, select
Poly-V belts and related roller’s pitch indicated in our catalogues.
DRIVE ROLLER INSTALLATION
•
Insert one couple of self-locking washers Ø12 trough the cable and
threaded pin, in order they are going inside the supporting profile.
•
Insert the eventual transmission O-rings or Poly-V belts over the
roller shell, into their proper grooves
•
Insert the RDR cable and the threaded pin into the side support Ø12
or 11hex hole, that must have been realized in the RDR decided
positions on the electric connection side.
•
Align the RDR roller axis with the hole Ø8 in the opposite side and
mount the outer cut washer and the M8x20 screw (13 hex head) and
lock it.
•
On cable side, insert the second couple of self-locking washers and
the M12x1.5 nut through the cable, onto the threaded pin and lock
it.
•
By holding the M12 nut inside the profile by a 19 mm wrench, finally
tighten the outer M12 nut by a torque wrench at 30Nm torque. Then
tighten the M8 screw on the opposite side, at 15Nm torque.
WARNING: if the above tightening prescriptions and warnings are
not respected, the cable can be twisted under the motor torque
and the Warranty voided.
ELECTRICAL DATA
Nominal Voltage
24 VDC
Input Voltage range
18 ÷ 28 VDC
Nominal Current (max continuous)
2.2 A
No load current
≤ 0.35 A
Max starting current
3.0 A electronically limited
to 2.5 A after start
Suggested power supply Ripple
< 1%
DIMENSIONAL DATA
Nominal shell Diameter
50 mm
Nominal shell thickness
1.5 mm
Max roller length (C)
1500 mm
GENERAL TECHNICAL DATA
Max. radial
< 1000 mm
1100 N
load
> 1000 - 1500 mm
500 N
Noise level (when assembled)
55 dBA
Average life time
15'000 h
ENVIRONMENTAL CONDITIONS
IP54 seal
Working Temperature
-10 / +40 °C
Storing Temperature
-30 / +70 °C
Relative Humidity max
90 % (not condensed)
DRIVE ROLLER PERFORMANCE
Gear
ratio
Max
Speed
Nominal
torque
Starting
torque
Nominal
Tang. force
m/s
Nm
Nm
N
16:1
0.65
1.2
1.6
48
24:1
0.40
1.8
2.5
72
36:1
0.30
2.7
3.7
108
49:1
0.20
3.6
4.9
144
64:1
0.16
4.5
6.1
180
MINIMUM “C” LENGTH
Gear
ratio
STD Exec.
2 grooves
Exec.
PV Exec.
(Poly-V)
mm *
mm
mm *
16:1
282 (241)
312
323 (282)
24:1
282 (241)
312
323 (282)
36:1
282 (241)
312
323 (282)
49:1
292 (251)
322
334 (292)
64:1
292 (251)
322
334 (292)
* in parenthesis extra-short single fixed length.
