FALK QUADRIVE JF Manual Download Page 45

Page: 45 / 52

INTRODUCTION —

These instructions are for use when a

flange mounted 4407-4608JF drive is to be used and the
manufacture of a tapered drive shaft is not feasible. For JF tapered
drive shaft recommendations, see Appendix J. Use this appendix to
retrofit existing applications or for outfitting new installations. Parts
required are the drive, TA Taper bushing and a special thrust plate
kit. NOTE: A special thrust plate kit with long fastener and extra
retaining ring is required. The standard J thrust plate kit will not
work. Specify the special thrust plate kit by part number. See
Table 1.

This appendix will allow the use of a straight drive shaft with the
tapered bushing (without spanner nut) on flange mounted
applications. Provided are dimensions (Table 5) for shaft
recommendations and instructions for the installation and
removal of the assembly. All bushing bore sizes, which are
available in the standard Quadrive, are possible with this setup.

FIGURE 2

—

4407-4608JF drives are furnished with a flange

adapter installed. The hollow shaft of the drive has a tapered
bore which accepts the tapered bushing. When the bushing is
drawn into the taper, a clamping force is applied to the drive
shaft. The drive shaft is drawn into the hollow shaft via a
fastener in the thrust plate. The bushing seats against a
shoulder on the driven shaft and is drawn into the drive with the
shaft. Removal is accomplished by using a jackscrew in the
thrust plate and forcing the drive shaft out of the drive. The
retaining ring in the drive shaft assures that the bushing will be
removed along with the shaft.

DRIVE SHAFT RECOMMENDATIONS —

The

recommendations for the drive shaft consist of two major
features. The first is the shoulder which must be provided in the
location shown in Figure 2. This shoulder provides the backing
necessary to draw the bushing into the taper. A permanently
fixed shoulder must be provided in order for this design to be
effective. The shoulder may be a welded collar or an integral
step. SET COLLARS ARE NOT ACCEPTABLE. A retaining ring
may be used, in the driven shaft, to provide the shoulder, but
stress concentrations occur at the groove and therefore shaft
stresses must be checked. The second major feature on the
shaft is the retaining ring groove in the shaft end. This feature is
recommended to ensure positive removal of the bushing when
the drive shaft is removed from the drive. The threaded hole in
the end of the drive shaft accepts the thrust plate fastener.

WARNING:

Lock out power source and remove all external

loads from system before servicing drive or accessories.

INSTALLATION PROCEDURE —

With the drive shaft

manufactured per the recommendations shown, and the
bushing selected for the proper shaft diameter, remove and
discard the retaining ring and spanner nut from the
bushing assembly.

4407JF —

Use of the tapered bushing requires that the flange

of the bushing be removed to clear the adapter, Figure 2. A
flangeless bushing is available for the 3.4375” (87 mm)

diameter shaft only.

ALL JF DRIVES —

Slide the bushing (flange end first) onto the

drive shaft until it contacts the shoulder on the shaft. Insert the
key through the bushing and into the drive shaft keyway. Install
the retaining ring into the groove in the drive shaft. Bring the
drive into position, line up the hollow shaft keyway with the key
and slide the bushing and drive shaft into the hollow shaft bore.

Attach the drive to the mounting surface with fasteners (not
provided). Refer to Table 2 for fastener size and tightening
torque. Assemble the thrust plate and retaining ring into the
counterbore in the hollow shaft. Insert the thrust plate fastener
through the thrust plate and thread into the drive shaft end.
Tighten to the torque given in Table 3. Install all covers and
guards.

REMOVAL PROCEDURE —

Remove hollow shaft cover.

Remove the thrust plate fastener, retaining ring and thrust
plate from the hollow shaft. Refer to Table 4 and select a
backing bolt and flat washer and install them into the drive
shaft as illustrated in Figure 1. The head of the backing bolt
provides a working surface for the removal bolt. Reinsert the
thrust plate and retaining ring into the hollow shaft and
select a removal bolt from Table 4. Thread the removal bolt
into the thrust plate until it contacts the backing bolt head.

Tighten the removal bolt to the torque indicated in Table 4.
(If the thrust plate rotates in the shaft, align the slot in the
plate with the hollow shaft keyway and insert a screw driver or
piece of key stock to prevent rotation of the plate). After
torquing the bolt, as instructed, strike the bolt sharply with a
hammer and retorque the bolt if separation of the drive from
the shaft did not occur. Repeat this procedure, retorquing the
bolt after each blow, until separation occurs.

The Falk Corporation, P.O. Box 492, Zip 53201-0492

378-102

3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone : 414-342-3131

August 2004

Fax: 414-937-4359 e-mail: [email protected] web: www.falkcorp.com

Supersedes 6-92

a good name in industry

Quadrive Shaft Mounted Drives

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Appendix K

Sizes 4407/M4407-4608/M4608

(Page 45 of 52)