Live Centre; Steady Rest And Follow Rest - Jet BD-8VS Operating Manual

8.7 Live centre (Optional)
The live centre (Fig 8-7) is mounted in ball bearings.
Its use is highly recommended for speeds above 500 RPM.
Figure 8-7: Live centre
To eject the live centre, fully retract the tailstock quill.

8.8 Steady rest and follow rest

The rests prevent flexing of long and thin work pieces under
pressure from the tool.
The steady rest (Fig 8-8) serves as a support for longer shafts
and ensures a safe and chatter free operation.
Figure 8-8: Steady rest
The follow rest (Fig 8-9) is mounted on the carriage and
follows the movement of the tool.
(Optional)
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Figure 8-9: Follow rest
Set the fingers (2) snug but not overly tight.
Lubricate the fingers to prevent premature wear.