4 Cyclo® BBB4 Quick Start Guide
Taper-Grip® Installation onto
Driven Shaft
Prior to installation of the Cyclo® BBB4 onto the driven shaft,
ensure that the shaft length meets or exceeds the minimum shaft
engagement value “TT” detailed in Table 1.
Shaft Diameter
(in)
Tolerance
(in)
1-3/16 – 1-15/16 +0 / -0.0015
2 – 3-1/8 +0 / -0.0018
3-3/16 – 4-11/16 +0 / -0.0021
4-3/4 – 6-1/2 +0 / -0.0025
Cyclo® BBB4 Size TT (in) TT (mm)
4A 8.19 (208)
4B 9.53 (242)
4C 10.98 (279)
4D 12.83 (326)
4E 14.13 (359)
4F 16.22 (412)
Shaft Diameter
(mm)
Tolerance
(μm)
(30 - 50) (+0 / -39)
(50 - 80) (+0 / -46)
(80 - 120) (+0 / -54)
(120 - 180) (+0 / -63)
Table 1. Driven Shaft Tolerance and Minimum Shaft
Engagement (TT)
TT
Taper-Grip® Bushing
Socket Head Cap Screws
Thrust Collar
Installation onto the Driven Machine
• Before coupling the reducer/gearmotor to the machine,
verify the appropriate/desired rotation of the machine.
Differences in the rotational direction may cause
personnel injury and/or equipment damage.
• Before operating the unit, ensure that all safety guards
around the rotating components are in-place and secure.
Failure to do so may result in personal injury.
Do not operate shaft mounted units 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 of this manual (page12).
CAUTION: The Cyclo® BBB4 must be externally supported prior to insertion of driven shaft into bushing.
External support MUST be maintained until unit is secured and mounting bolts have been tightened to the
appropriate torque.
External
Support
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