Tsubaki Power Lock Inch Series

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U.S. TSUBAKI POWER-LOCK ®Technical NotesINSTALLATION AND REMOVAL3The snap ring can be easily removed with a flat-bladescrewdriver.• Removing a snap ring:The snap rings for POWER-LOCKs are shaped like spirals.Insert a flat-blade screwdriver in the slit of the snap ring andslightly lift to remove. See Illustration 1.B. Removal(1) Verify that no torque or thrust is applied to the hub andshaft.Note that in cases where a heavy shaft, hub or chain isused, disassembly may be slightly complicated. Afterremoving the load, disassemble the unit by looseningthe bolts in the correct order described in Installation A.Caution: Loosening the bolts will release the lockingfunction, which may cause the shaft to spin orjump out.(2) If the unit does not remove even after loosening all thebolts, tighten the bolts into the screw holes prepared forremoval. This will instantly release the lock.■ Notes on SL SeriesBefore installing an SL POWER-LOCK, loosen thelocking bolts and remove the spacer inserted betweenthe taper rings A and B. See Illustration 2.C. ReusabilityRE Series1: Inner Ring2: Outer Ring3: Locking Bolts4. Snap RingSL Series1: Taper Ring A2: Taper Ring B3: Inner Ring4. Locking Bolts(1) When POWER-LOCKs with specially lubricated boltsand inner rings start to flake, they cannot be reused.Also, if the end of a locking bolt seems to be damagedor if other parts show signs of wear, the product cannotbe reused.(2) Assembly and disassembly of the POWER-LOCKs maybe repeated a few times. However, if the hub and shaftmaterial yield stresses σ0.2 cannot tolerate the contactpressure P and P', repeated assembly and disassemblymay damage certain parts of the hub-shaft contactsurfaces.More information at www.ustsubaki.com76
Technical NotesINSTALLATION AND REMOVALTsubaki: The solution for shaft locking devicesEL Installation and RemovalA. Removal(7) Using a torque wrench or a hexagonal spanner wrenchtighten the bolts to approximately quarter of thespecified torque.(8) Using the wrench tighten the bolts to one-half thespecified torque.(9) Bring up to full tightening torque MA until the bolts donot turn any further. Use the torque wrench to completethis final step and make sure that the space betweenthe pressure flange and the hub or shaft end is uniformthroughout the circumference.(1) Verify that the shaft and the inner surface of the hub areclean, we recommend to lightly oil surfaces.Note: Do not use silicone or molybdenum lubricants.Otherwise, friction coefficient will reduce, andstandard torque will not be achieved.(2) If an indentation in the inner hub corner or a large R ismachined, a spacer sleeve must be used.(3) An EL POWER-LOCK can be installed in two ways,resulting in different transmissible torque: (a) Install bypressurizing the outer ring or (b) by pressurizing theinner ring. Pay close attention to the installation positionduring this procedure.(4) Mount the POWER-LOCK so that it slightly moves inparallel to the shaft.■ Notes on AS and EL SeriesWhen using a POWER-LOCK that is not self-centering,mount a guiding unit to the hub. Do not center bytightening the bolts. Instead, center or align the hub andshaft by adjusting the guide portion itself. The alignmentaccuracy is determined by the length and tolerance ofthe guide portion.B. Removal(1) Tighten the bolts in a crisscross sequence.Normally, when the bolts are loosened, thePOWER-LOCK will remove itself.(2) If it does not remove after loosening all the bolts,clean the surrounding surface and lightly hit thePOWER-LOCK with a hammer.(3) If an EL POWER-LOCK does not remove by procedure(2), an increase in friction coefficient may have takenplace due to damaged contact surfaces or a dislocationof the unit may have happened due to incorrectmounting or a plastic deformation may have occurred.In these cases, the unit must be disassembled and theproblem investigated before reassembling.(5) Mount by tightening the bolts on the pressure flangeevenly, in a crisscross sequence. Make sure that theamount of space between the pressure flange and thehub is uniform throughout the circumference.Note: If the pressure flange material strength isinsufficient, adequate pressure cannot beachieved. Confirm the catalog rate for pressureflange material strength before installing andavoid damages to the POWER-LOCK and thebolt head bearing surfaces.(6) Hand-tighten the bolts until the pressure flange nolonger moves in the shaft direction. Then, adjust the hubposition and phase.Note: Do not use a spring washer or toothed washerwith the pressure flange and bolts.C. Reusability(1) An EL POWER-LOCK cannot be reused if the bolts orother parts are damaged.(2) Assembly and disassembly of the POWER-LOCKs maybe repeated a few times. However, if the hub and shaftmaterial yield stresses σ0.2 cannot tolerate the contactpressure P and P', repeated assembly and disassemblymay damage certain parts of the hub-shaft contactsurfaces.77More information at www.ustsubaki.com
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Tsubaki: The solution for shaft loc
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Tsubaki: The solution for shaft loc
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U.S. TSUBAKI POWER-LOCK ®Applicati
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U.S. TSUBAKI POWER-LOCK ®Applicati
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U.S. TSUBAKI POWER-LOCK ®AS Inch S
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U.S. TSUBAKI POWER-LOCK ®AS Metric
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U.S. TSUBAKI POWER-LOCK ®AS Metric
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U.S. TSUBAKI POWER-LOCK ®AD Inch a
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U.S. TSUBAKI POWER-LOCK ®AD Inch S
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U.S. TSUBAKI POWER-LOCK ®AD Metric
Page 26 and 27: U.S. TSUBAKI POWER-LOCK ®AE Inch S
Page 28 and 29: U.S. TSUBAKI POWER-LOCK ®AE Inch S
Page 30 and 31: U.S. TSUBAKI POWER-LOCK ®AE Metric
Page 32 and 33: U.S. TSUBAKI POWER-LOCK ®FL Inch a
Page 34 and 35: U.S. TSUBAKI POWER-LOCK ®FL Inch S
Page 36 and 37: U.S. TSUBAKI POWER-LOCK ®FL Metric
Page 38 and 39: U.S. TSUBAKI POWER-LOCK ®FL Metric
Page 40 and 41: U.S. TSUBAKI POWER-LOCK ®RE Metric
Page 42 and 43: U.S. TSUBAKI POWER-LOCK ®RE Metric
Page 44 and 45: U.S. TSUBAKI POWER-LOCK ®KE Inch S
Page 46 and 47: U.S. TSUBAKI POWER-LOCK ®KE Inch S
Page 48 and 49: U.S. TSUBAKI POWER-LOCK ®KE Metric
Page 50 and 51: U.S. TSUBAKI POWER-LOCK ®TF Metric
Page 52 and 53: U.S. TSUBAKI POWER-LOCK ®TF Metric
Page 54 and 55: U.S. TSUBAKI POWER-LOCK ®SL Series
Page 56 and 57: U.S. TSUBAKI POWER-LOCK ®SL Series
Page 58 and 59: U.S. TSUBAKI POWER-LOCK ®EF Metric
Page 60 and 61: U.S. TSUBAKI POWER-LOCK ®EF Metric
Page 62 and 63: U.S. TSUBAKI POWER-LOCK ®EL Series
Page 68 and 69: U.S. TSUBAKI POWER-LOCK ®Technical
Page 80 and 81: NOTESMore information at www.ustsub
Page 82 and 83: NOTESMore information at www.ustsub
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Tsubaki Power Lock Inch Series

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