Sumitomo Cyclo BBB4 - Keyed Hollow Bore

12 Operation & Maintenance Manual
Cyclo® BBB4
Cyclo® BBB4
Installation onto Driven Shaft, continued
Keyed Hollow Bore
Keyed Hollow Bore Installation
Do not operate unit until the torque arm has been attached to the unit and fixed to a rigid structure. The torque arm prevents
counter-rotation during unit operation. Refer to torque arm Installation section in this manual for instructions.
CAUTION: The Cyclo® BBB4 must be externally supported prior to insertion of driven shaft into hollow bore.
Bore and Shaft Tolerance Specifications
•Unlessotherwisespecied,thetoleranceoftheHollowShaftBoreconformstoJISH8.
•Ifapplicationinvolveshighshockloadingand/orlargeradialloads,ashafttoleranceofJISjs6orJISk6isrecommended.
Anti-sieze
compound
Keyed Hollow Bore Installation
onto Driven Shaft
1
Apply anti seize compound to the driven shaft surface and inside the reducer keyed
hollow bore.
2
Align the driven shaft with the reducer/gearmotor bore and carefully slide unit onto
the driven shaft to the desired location.
If the fit is tight, strike on the keyed hollow bore with a wooden or hard rubber
mallet to assist in the assembly.
If using a mallet during installation, strike only against the unit’s steel keyed
hollow bore. Do not strike the reducer housing or oil seal as damage to the
bearings, housing and/or 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.