we keep the presses rolling obu - oscillating bearing unit units for inking- and dampening rollers...
Post on 15-Dec-2015
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We keep the presses rolling
OBU - Oscillating Bearing Unit
Units for inking- and dampening rollers (oscillating rollers)
We keep the presses rolling
Oscillating bearing: Current design
Current solution:
• cylindrical roller bearing with wider innerring
We keep the presses rolling
Oscillating bearing: Recommended Product Range
30.10.03
1) = permissible axial displacement from normal position
- oscillating bearings have normally a polyamidcage, except BC1-0628- the standard radial clearance is bigger than normal (C3)- oil and grease lubrication are possible- other sizes then in the table above on request
Designation d
[mm]
D
[mm]
CAR
[mm]
B
[mm]
C
[kN]
C0
[kN]
s1
[mm]
BC1-0160 17 40 16 57,5 23,8 21,6 22
BC1-0628 40 68 15 71 25,1 26 30
BC1-0216 45 75 16 42 44,6 52 12,5
BC1-0190 45 75 21 50 44,6 52 17,5
BC1-0043 55 100 21 45 84,2 95 13
BC1-0454 55 100 21 54 84,2 95 17,5
BC1-0318 55 100 21 59 84,2 95 20
We keep the presses rolling
• sealed unit, based of cylindrical roller bearing, without shaft
Components:
housing
cover
bearing
sealings
grease
sensor (opt.)
Oscillating Bearing Unit OBU: Concept 1
• operator side
We keep the presses rolling
• sealed unit, based of cylindrical roller bearing, with shaft
• interface to the oscillating roller: flange, coupling or other linking
Components:
housing
shaft
cover
bearing
sealings
grease
sensor (opt.)
Oscillating Bearing Unit OBU: Concept 2
• operator side
We keep the presses rolling
Oscillating Bearing Unit OBU: Sealing
depends on:
• the influences from outside of the unit
• available space within the design
• the requirements of the customers
• the chosen kind of lubrication
possible sealings:
presealing
gapsealing (f.e. gap-, chamber-, labyrinthsealing)
recommendation SKF: - gapsealing
(- or, if necessary, a combination of
preseal- and gapsealing)
We keep the presses rolling
Oscillating Bearing Unit OBU: Lubrication
kind of lubrication depends on:
• requirements of the customers
• the environmental conditions
possible kinds of lubrications:
long time grease lubrication (specially tested by SKF)
continuously grease lubrication
oil circulation or oil bath lubrication
recommendation SKF: long time grease lubrication
We keep the presses rolling
Oscillating Bearing Unit OBU:
Advantages of long time grease lubrication
long relubrication intervalls (3-5 years)
specific balancing between grease, amount of grease and sealing
application fits in the concept "oilfree press"
no oil-leakages
less oilpipes are needed
no need of central grease lubrication system
We keep the presses rolling
complete unit, ready to mount
easy integration in mounting procedure
time consuming mounting at the press producer is not longer necessary
no risk of contamination during mounting
longtime grease lubrication
one article code, i.e. less numbers of single positions
easier handling, disposition, management of inventory stocks
reducing total costs
Oscillating bearing unit OBU: Benefits
We keep the presses rolling
Oscillating Bearing Unit OBU: Customer Requirements
for life lubrication ( longtime grease lubrication)
reducing costs ()
easy and plain mounting ()
benefits for enduser ( - longtime grease lubrication, numbers of spare parts)
references ( tests with oscillating bearing unit within SKF;
oscillating bearings are in the field since 10 years)
longtime usage/high quality ()
environmental friendly ()
one contact person ()
easily handling/logistics ()
new ideas ()
We keep the presses rolling
Oscillating Bearing Unit OBUs: Arrangement 1
- oscillating bearing unit without shaft -
• OBU for operator side • OBU for drive side (oil from outside)
We keep the presses rolling
Oscillating Bearing Unit OBUs: Arrangement 2
- oscillating bearing unit with shaft, for splited cylinder -
• OBU for operator side • OBU for drive side (oil from outside)
We keep the presses rolling
Oscillating Bearing Unit OBUs: Arrangement 3
• OBU for operator side • OBU for drive side• [splited cylinder] • external oscillator
• oscillating bearing unit with shaft• drive (external oscillator)• [splited cylinder]
Advantages of arrangement 3:
easy handling of interfaces
all parts out of one hand
easily inclusion in whole process (samples/tests/series)
We keep the presses rolling
Oscillating Bearing Unit OBUs: Arrangement 3
• external oscillators of Scandrive
• variable stroke • fixe stroke
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