we keep the presses rolling obu - oscillating bearing unit units for inking- and dampening rollers...

We keep the presses rolling

OBU - Oscillating Bearing Unit

Units for inking- and dampening rollers (oscillating rollers)


Oscillating bearing: Current design

Current solution:

• cylindrical roller bearing with wider innerring


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


• 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


• 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


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)


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


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


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


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 ()


Oscillating Bearing Unit OBUs: Arrangement 1

- oscillating bearing unit without shaft -

• OBU for operator side • OBU for drive side (oil from outside)



- oscillating bearing unit with shaft, for splited cylinder -

• OBU for operator side • OBU for drive side (oil from outside)



• 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)



• external oscillators of Scandrive

• variable stroke • fixe stroke

we keep the presses rolling obu - oscillating bearing unit units for inking- and dampening rollers...

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