Climax BB4500, Operating Manual

Page: 63 / 162

P/N 92974, Rev. 1 Page 47
3.6 BB4500-BB5000
WITH SMALL DIAMETER BARS
For the BB4500, boring bars with a diameter of less than 1.75" (44 mm) are easily
adapted to accept the standard RDU, AFU, and the spherical bearing mounting
brackets (see Figure 3-18).
For the BB5000, boring bars with a
diameter of less than 2.25" (57.15
mm) are easily adapted to accept
the standard RDU, AFU, and the
spherical bearing mounting brack-
ets (see Figure 3-18). This adapta-
tion for the 1.25" (32 mm) boring
bar is offered as a CLIMAX small
bore kit (P/N 28698).
NOTICE
The small bore kit adapter collets fit into the existing collets. Do not
remove existing collets from the RDU and AFU.
The AFU collet is serrated on both ends and has no keyway. The RDU collet is ser-
rated on one end only.
The RDU collet has a keyway milled into the outside diameter with two bolt heads
visible (see Figure 3-19 on page 48). Those bolts are for retaining the key in the
inner diameter of the collet, which will accept the keyway of the 1.25" boring bar.
T
ABLE
3-10. C
OLLET IDENTIFICATION
Number Component
1 Spherical bearing collets
2 RDU collet
3 AFU collet
SPHERICAL
BEARING
COLLETS
RDU COLLET
AFU COLLET
2
3
1
F
IGURE
3-18. C
OLLETS
(BB5000
VERSION SHOWN
)