8
Operation & Maintenance Manual
Cyclo® BBB4
Cyclo® BBB4
Installation onto Driven Shaft
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 .
In case a unit shipped with oil lubrication or a condition after oil filled, carefully handle installation angle . Keep shaft vertical and
install driven shaft because drywell cover will be inside gearbox and which should not be flooded by oil .
Bore and Shaft Tolerance Specifications
• Unless otherwise specified, 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
(Images shown for standard BBB in horizontal orientation and for Mixer drive with drywell the
orientation is vertical)
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 .
Sumitomo does not supply a mounting
jig . This information is provided for reference only .
