10 Cyclo® BBB4 Quick Start Guide
3
Once driven shaft has been completely inserted into the unit’s keyed
hollow bore, secure the shaft in place using a keeper plate as shown
in this example, or some other means of securing the unit to the
driven shaft.
Do not operate unit until the torque arm has been
attached. Refer to the Torque Arm Installation (page12)
section in this manual for instructions.
Shrink Disc Type Hollow Bore Installation
onto Shaft
Before placing unit onto driven shaft, do not apply grease,
oil, or anti-seize grease to the entire driven shaft or to the
bore of the shrink disc. Use of these friction-minimizing
products will adversely affect the ability of the unit to
transmit torque.
Never tighten locking screws before shaft installation. Inner ring may
become permanently contracted even at low tightening torques.
1
Clean and degrease contact surfaces; reducer shaft and bore, and the
machine driven shaft.
Apply Molykote 321 or an equivalent dry film lubricant to the driven
shaft projection opposite from the shrink disc.
Do Not apply any friction minimizing compound to the
driven shaft at or near the shrink disc.
2
Align the driven shaft with the bore of reducer/gearmotor bore and
carefully slide unit onto the driven shaft.
If the fit is tight, strike on the reducer hollow bore with a mallet to assist in
the assembly.
If using a mallet during installation, strike only against the
unit’s steel hollow bore. Do not strike the reducer housing
or oil seal, damage to the bearings, the housing, and/or the
seals may occur.
Note: If the fit is tight, use a jig such as the one shown in Table 3 to
ease assembly. Sumitomo does not supply a mounting jig. This
information is provided for reference only.
Degrease
these areas
Apply Molykote 321
to this shaft area only
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