OBU Oscillating Bearing Units for inking and dampening
OBU - Oscillating Bearing 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 Designation 1) d [mm] D [mm] CAR [mm] B [mm] C [k. N] C 0 [k. N] s 1 [mm] BC 1 -0160 17 40 16 57, 5 23, 8 21, 6 22 BC 1 -0628 40 68 15 71 25, 1 26 30 BC 1 -0216 45 75 16 42 44, 6 52 12, 5 BC 1 -0190 45 75 21 50 44, 6 52 17, 5 BC 1 -0043 55 100 21 45 84, 2 95 13 BC 1 -0454 55 100 21 54 84, 2 95 17, 5 BC 1 -0318 55 100 21 59 84, 2 95 20 = permissible axial displacement from normal position - oscillating bearings have normally a polyamidcage, except BC 1 -0628 - the standard radial clearance is bigger than normal (C 3) - oil and grease lubrication are possible - other sizes then in the table above on request We keep the presses rolling
Oscillating Bearing Unit OBU: Concept 1 • sealed unit, based of cylindrical roller bearing, without shaft Components: housing cover bearing sealings grease sensor (opt. ) • operator side We keep the presses rolling
Oscillating Bearing Unit OBU: Concept 2 • 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 • operator side We keep the presses rolling grease sensor (opt. )
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: Ø presealing Ø 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: Ø long time grease lubrication (specially tested by SKF) Ø continuously grease lubrication Ø 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 Ø long relubrication intervalls (3 -5 years) Ø specific balancing between grease, amount of grease and sealing Ø application fits in the concept "oilfree press" Ø no oil-leakages Ø less oilpipes are needed Ø no need of central grease lubrication system We keep the presses rolling
Oscillating bearing unit OBU: Benefits Ø complete unit, ready to mount Ø easy integration in mounting procedure Ø time consuming mounting at the press producer is not longer necessary Ø no risk of contamination during mounting Ø longtime grease lubrication Ø one article code, i. e. less numbers of single positions Ø easier handling, disposition, management of inventory stocks Ø reducing total costs 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 We keep the presses rolling • OBU for drive side (oil from outside)
Oscillating Bearing Unit OBUs: Arrangement 2 - oscillating bearing unit with shaft, for splited cylinder - • OBU for operator side We keep the presses rolling • OBU for drive side (oil from outside)
Oscillating Bearing Unit OBUs: Arrangement 3 • oscillating bearing unit with shaft • drive (external oscillator) • [splited cylinder] • OBU for operator side • [splited cylinder] • OBU for drive side Advantages of arrangement 3: Ø easy handling of interfaces Ø all parts out of one hand Ø easily inclusion in whole process (samples/tests/series) We keep the presses rolling • external oscillator
Oscillating Bearing Unit OBUs: Arrangement 3 • external oscillators of Scandrive • variable stroke We keep the presses rolling • fixe stroke
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